Contract 0x29843613c7211d014f5dd5718cf32bcd314914cb 7

Txn Hash Method
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0x1dcfc2d4b11d6a8e9cad0891c03e5f94b4132684a3752fbd9189ab1dff0b7e04Swap Exact ETH F...110542442023-10-14 16:48:2446 days 10 hrs ago0x9bc99c222868c30dc4eebad44dd3654ed9e949d0 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.01023856941173 ETH0.00179098080615.10000005
0xd4c68c5b26f1bd09e708d028c8dceba05e68ee029bcd4572110389b5167835d7Swap Exact ETH F...110542422023-10-14 16:48:2046 days 11 hrs ago0x9bc99c222868c30dc4eebad44dd3654ed9e949d0 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.014325374911762 ETH0.00153043030515.10000005
0x6805e6bd83da019214899a5650c48b223f8d3828c2ab186d0b5bd917c9f4040bSwap Exact ETH F...110542252023-10-14 16:47:4646 days 11 hrs ago0x9bc99c222868c30dc4eebad44dd3654ed9e949d0 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.018928835225375 ETH0.00178743230615.10000005
0x0b15d060f183ca3047c75cc6ae70c12b0c9832a0f3413a7b58c09fe3cf04c007Swap Exact ETH F...110542132023-10-14 16:47:2246 days 11 hrs ago0x9bc99c222868c30dc4eebad44dd3654ed9e949d0 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.012627379782441 ETH0.00178864030615.10000005
0x7cd330675ec1c0a0423333c985cedf816892f850d819fca81cc3fb42580852c2Swap Exact ETH F...108870792023-10-10 19:56:1450 days 7 hrs ago0x5626c0903438f50a543fad44407993f14a135e90 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.001208 ETH0.0001518735051.50000005
0xc0c792c311bc6a3f623c040438531366c13ba80ad023a46f4d5039b301ce76f0Swap Exact ETH F...108869292023-10-10 19:51:1450 days 7 hrs ago0x0c3785fb5ee3b2c4ec479a42fa2df46ad7268610 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.001883 ETH0.0001518735051.50000005
0x764b655f8d1237a6b3085aaf757604254f6023d1e46ac1573e9a4ec013ca710dSwap Exact ETH F...108868972023-10-10 19:50:1050 days 7 hrs ago0xa5eb8a0c20349d3f80ac7e02d312c604496e9329 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.001358 ETH0.0001518735051.50000005
0xe820d071e9b5f2fd5921552e101c9652f3b20678ed2bfa53415a409a1461f6f9Swap Exact ETH F...108868692023-10-10 19:49:1450 days 7 hrs ago0x766af794742d33f736f36d62a0adbabf552c5249 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.001265 ETH0.0001518735051.50000005
0x5f7fe42a8f1d1d2c367107d421c539aacd8fc1b4a7bf3f758a8c589e51401f19Swap Exact ETH F...108868042023-10-10 19:47:0450 days 8 hrs ago0xf2df71649e01d496fde8de43e320d2150292187a IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.001415 ETH0.0001518735051.50000005
0x3c002577bb55d079d096c5cc98bc8c49446754c9ecbe7e5f5ae6abc2f45f05d7Swap Exact ETH F...108866562023-10-10 19:42:0850 days 8 hrs ago0x09197e6628b90e63ee2855491756ad32bdf06715 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003877 ETH0.0001518735051.50000005
0x5c5fb6a4160b8b1cc9e57a6f164c77eae9757c94445b0a0101c84310259179adSwap Exact ETH F...108866392023-10-10 19:41:3450 days 8 hrs ago0x8f822f4d7d1300706340c9861f2e77f947369c51 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003984 ETH0.0001518555051.50000005
0x4d989b1dc6f4b30b3046cce8cc5961754bfdaee6166402512280c8e8a32ac2c6Swap Exact ETH F...108865592023-10-10 19:38:5450 days 8 hrs ago0x5e68f66ae5ce014d027de45dd1c669b0b220033e IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003386 ETH0.0001518735051.50000005
0x7a8279a2ed0cef2d8aec0a5717be2586e9d78f718370bd1ba2354119762e3f7eSwap Exact ETH F...108865402023-10-10 19:38:1650 days 8 hrs ago0x80f62699f47363a520cdc80bb2594c8625fa81e6 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.002239 ETH0.0001518735051.50000005
0x7fb35eb47e9aea076b85a5c1b9e087f8bc42dcf386a73d5215a8f673fe43d1e2Swap Exact ETH F...108864832023-10-10 19:36:2250 days 8 hrs ago0x879d3ad05c86cf7044587ed2c3b155351c884f00 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.002117 ETH0.0001518555051.50000005
0x3ecf545f3f867e6e0d9754a199fa2e6321689a59d7b7c195c1174e0f343347e4Swap Exact ETH F...108864472023-10-10 19:35:1050 days 8 hrs ago0x8e6529ff4652da35df40b93eef319eb4b21b82cd IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003911 ETH0.0001518735051.50000005
0x56f9d326382759a69d954c1858919df426abe3dea51dfe846e231fdfc1aa926aSwap Exact ETH F...108864092023-10-10 19:33:5450 days 8 hrs ago0x4472d1a25a6246472e07ca92fd14b395b8871114 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.0014 ETH0.0001518735051.50000005
0xa5ad7b89a32cdc35bedcde5a0a6f3a05e6580321b32f89fdb801f54bfd1733bcSwap Exact ETH F...108863852023-10-10 19:33:0650 days 8 hrs ago0xd7bb96f87b133d2d85fb15cd30e8ec8da6637ddf IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003301 ETH0.0001518735051.50000005
0x30bd0e72e16d360b38bce8c10d1bd25bad533141980b36b36fba67e364c132e0Swap Exact ETH F...108863332023-10-10 19:31:2250 days 8 hrs ago0x63b9b2c1f71340a542b79c5f83dc3cd55ef16a55 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.002827 ETH0.0001518735051.50000005
0x178da50a549f0cc678d0b1ddc8df70ed1dcd0991332fd676ee8ed1fb989e4b2cSwap Exact ETH F...108862992023-10-10 19:30:1450 days 8 hrs ago0x5b496cbc08f3751ce91b48b2ad17ad3cbfdb4c69 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003698 ETH0.0001518735051.50000005
0xb68e7ae129e4f56f9163c55e74a9668e3f1f0121caee63ed37fb1cfd6040df6cSwap Exact ETH F...108862852023-10-10 19:29:4650 days 8 hrs ago0x767005b9bd5801157d6615c7dbce46b6d15337c0 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.001929 ETH0.0001518735051.50000005
0x1b1ab73c81ff902327e040318bd085daa18b923a6430807353392d82cdce90aeSwap Exact ETH F...108862532023-10-10 19:28:4250 days 8 hrs ago0x2e9ddf7b795443e768a5ab88d725fa58bf4952bf IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003267 ETH0.0001518735051.50000005
0x2e061e09b11f14f00982e2a840a8374fed5213532c1aa1585c76c1b1dd7e81feSwap Exact ETH F...108861162023-10-10 19:24:0850 days 8 hrs ago0xe1f03cc58879a5af2652ab80da72a53c5be4c227 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003586 ETH0.0001518735051.50000005
0x1925dc0b196586e1bd3042b18a9f65bdcbcda316c6aeabb6a1f04194452c385dSwap Exact ETH F...108860852023-10-10 19:23:0650 days 8 hrs ago0x7fe66d43a6d4a227a62d56489d18000f0d434064 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003931 ETH0.0001518555051.50000005
0x4c2c297d523d7ba36f3a2d85936dd8e9aca5153fdf5d9840978c57da0ebf1110Swap Exact ETH F...108859552023-10-10 19:18:4650 days 8 hrs ago0x8ba53cd996fc898aff929da2b437a1814c3e0ba7 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003834 ETH0.0001518735051.50000005
0xf7f963e4dc0050c4d659e25ffcff7d93d01954ff3c0112ea357ca6d92fa824a0Swap Exact ETH F...108858812023-10-10 19:16:1850 days 8 hrs ago0x89eb45845c96ccce0979586c948cb40c264353f0 IN  0x29843613c7211d014f5dd5718cf32bcd314914cb0.003188 ETH0.0001518735051.50000005
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Latest 25 internal transaction
Parent Txn Hash Block From To Value
0xa2e66a90343811219ea5d9c0ba47953c41ab6ff18ca37c361fefcf36dd779508128663352023-11-25 15:31:264 days 12 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x720072ff9646bb4a25b5a1d648eebfa8f8d141940.001652315113373579 ETH
0xa2e66a90343811219ea5d9c0ba47953c41ab6ff18ca37c361fefcf36dd779508128663352023-11-25 15:31:264 days 12 hrs ago 0x4200000000000000000000000000000000000006 0x29843613c7211d014f5dd5718cf32bcd314914cb0.001652315113373579 ETH
0x45031f2b421cb335f290f2b326d527f1a9aac7a53afc4bd97b30afd44e547e9c128109152023-11-24 8:44:065 days 19 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x42000000000000000000000000000000000000060.002 ETH
0x45031f2b421cb335f290f2b326d527f1a9aac7a53afc4bd97b30afd44e547e9c128109152023-11-24 8:44:065 days 19 hrs ago 0xd9b7849d3a49e287c8e448cea0aae852861c4545 0x29843613c7211d014f5dd5718cf32bcd314914cb0.002 ETH
0xe21b42c9c54b07805d9a55b0b0cc59a44d472b3a0d2cd568696c0d2cfcf7a713127386922023-11-22 16:36:407 days 11 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x5ba88e0e6f368b38a718cc74f48c415b2e08cb710.002320459060275944 ETH
0xe21b42c9c54b07805d9a55b0b0cc59a44d472b3a0d2cd568696c0d2cfcf7a713127386922023-11-22 16:36:407 days 11 hrs ago 0x4200000000000000000000000000000000000006 0x29843613c7211d014f5dd5718cf32bcd314914cb0.002320459060275944 ETH
0x313aa3f35bf0dd2c8f19d5df69c717f18ba5be258f80d200da4964a87e82e43e127385292023-11-22 16:31:147 days 11 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x5ba88e0e6f368b38a718cc74f48c415b2e08cb710.002629249712524979 ETH
0x313aa3f35bf0dd2c8f19d5df69c717f18ba5be258f80d200da4964a87e82e43e127385292023-11-22 16:31:147 days 11 hrs ago 0x4200000000000000000000000000000000000006 0x29843613c7211d014f5dd5718cf32bcd314914cb0.002629249712524979 ETH
0x189465b6b9dd04d76b4de5f841a5bf7fce947d6f67fca14a8147da7c9d19405f124999232023-11-17 3:57:4212 days 23 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x9b6be46ed05ee77a22928ba88ca46d9fff09e3f80.092590820981015172 ETH
0x189465b6b9dd04d76b4de5f841a5bf7fce947d6f67fca14a8147da7c9d19405f124999232023-11-17 3:57:4212 days 23 hrs ago 0x4200000000000000000000000000000000000006 0x29843613c7211d014f5dd5718cf32bcd314914cb0.092590820981015172 ETH
0xe24f53c4b82b83e11316aada37b7d570220aa3db587e374e7dfb4dd263f9f801124796262023-11-16 16:41:0813 days 11 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x42000000000000000000000000000000000000060.009 ETH
0xe24f53c4b82b83e11316aada37b7d570220aa3db587e374e7dfb4dd263f9f801124796262023-11-16 16:41:0813 days 11 hrs ago 0xd9b7849d3a49e287c8e448cea0aae852861c4545 0x29843613c7211d014f5dd5718cf32bcd314914cb0.009 ETH
0x4a8deedd1b1e58909a4280eec6d738c6b2fcecf5a145e3ab88368e931cee0282124176072023-11-15 6:13:5014 days 21 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0xbaddc3a6b8ec98752414810d9152552845ab4b0d0.002108769065600792 ETH
0x4a8deedd1b1e58909a4280eec6d738c6b2fcecf5a145e3ab88368e931cee0282124176072023-11-15 6:13:5014 days 21 hrs ago 0x4200000000000000000000000000000000000006 0x29843613c7211d014f5dd5718cf32bcd314914cb0.002108769065600792 ETH
0x37bd26af129997de3bf289d699cdbcea3e2e945d003a7c76b829c09f6324550f123053372023-11-12 15:51:3017 days 11 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x42000000000000000000000000000000000000060.001 ETH
0x37bd26af129997de3bf289d699cdbcea3e2e945d003a7c76b829c09f6324550f123053372023-11-12 15:51:3017 days 11 hrs ago 0xd9b7849d3a49e287c8e448cea0aae852861c4545 0x29843613c7211d014f5dd5718cf32bcd314914cb0.001 ETH
0x03491a42ce5ffe47f06304814097885566dae3c39a92235743d54558269aee31121426832023-11-08 21:29:4221 days 6 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0xcd2bb6852d3e27a4ecba838b389573051bab0b100.000316093743243284 ETH
0x03491a42ce5ffe47f06304814097885566dae3c39a92235743d54558269aee31121426832023-11-08 21:29:4221 days 6 hrs ago 0x4200000000000000000000000000000000000006 0x29843613c7211d014f5dd5718cf32bcd314914cb0.000316093743243284 ETH
0x675bcd4aa3c0f3cff0534f09eeed39671da331d75206b647c9d000bcb455cc26121375642023-11-08 18:39:0421 days 9 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x42000000000000000000000000000000000000060.01 ETH
0x675bcd4aa3c0f3cff0534f09eeed39671da331d75206b647c9d000bcb455cc26121375642023-11-08 18:39:0421 days 9 hrs ago 0xd9b7849d3a49e287c8e448cea0aae852861c4545 0x29843613c7211d014f5dd5718cf32bcd314914cb0.01 ETH
0xaded1a4bc6c0f9fb3fd8a2b7f314023272db98571dd1d6da0d369d6db62e9483121374712023-11-08 18:35:5821 days 9 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x42000000000000000000000000000000000000060.01 ETH
0xaded1a4bc6c0f9fb3fd8a2b7f314023272db98571dd1d6da0d369d6db62e9483121374712023-11-08 18:35:5821 days 9 hrs ago 0xd9b7849d3a49e287c8e448cea0aae852861c4545 0x29843613c7211d014f5dd5718cf32bcd314914cb0.01 ETH
0xa431bb95d765d5ded0e0b09e4e56057a7f003896b386e71ff22f3a311cbe186d120551882023-11-06 20:53:1223 days 6 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0x42000000000000000000000000000000000000060.002 ETH
0xa431bb95d765d5ded0e0b09e4e56057a7f003896b386e71ff22f3a311cbe186d120551882023-11-06 20:53:1223 days 6 hrs ago 0xd9b7849d3a49e287c8e448cea0aae852861c4545 0x29843613c7211d014f5dd5718cf32bcd314914cb0.002 ETH
0xd62bfea10b7ccf83f85910a86c71aad5fe7213f232fb32cd97d21a2148e80785120455382023-11-06 15:31:3223 days 12 hrs ago 0x29843613c7211d014f5dd5718cf32bcd314914cb0xb622b12f820783d44b4d1eb727669670036ff94a0.004767190358283418 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
DackieRouter

Compiler Version
v0.6.6+commit.6c089d02

Optimization Enabled:
Yes with 99999 runs

Other Settings:
default evmVersion
File 1 of 10 : TransferHelper.sol
// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity >=0.6.0;

// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::safeApprove: approve failed'
        );
    }

    function safeTransfer(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::safeTransfer: transfer failed'
        );
    }

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::transferFrom: transferFrom failed'
        );
    }

    function safeTransferETH(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
    }
}

File 2 of 10 : DackieRouter.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity =0.6.6;

import '@uniswap/lib/contracts/libraries/TransferHelper.sol';

import "./interfaces/IDackieRouter02.sol";
import "./interfaces/IDackieFactory.sol";
import "./libraries/DackieLibrary.sol";
import "./libraries/SafeMath.sol";
import "./interfaces/IERC20.sol";
import "./interfaces/IWETH.sol";

contract DackieRouter is IDackieRouter02 {
    using SafeMath for uint256;

    address public immutable override factory;
    address public immutable override WETH;

    modifier ensure(uint256 deadline) {
        require(deadline >= block.timestamp, "DackieRouter: EXPIRED");
        _;
    }

    constructor(address _factory, address _WETH) public {
        factory = _factory;
        WETH = _WETH;
    }

    receive() external payable {
        assert(msg.sender == WETH); // only accept ETH via fallback from the WETH contract
    }

    // **** ADD LIQUIDITY ****
    function _addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin
    ) internal virtual returns (uint256 amountA, uint256 amountB) {
        // create the pair if it doesn't exist yet
        if (IDackieFactory(factory).getPair(tokenA, tokenB) == address(0)) {
            IDackieFactory(factory).createPair(tokenA, tokenB);
        }
        (uint256 reserveA, uint256 reserveB) = DackieLibrary.getReserves(factory, tokenA, tokenB);
        if (reserveA == 0 && reserveB == 0) {
            (amountA, amountB) = (amountADesired, amountBDesired);
        } else {
            uint256 amountBOptimal = DackieLibrary.quote(amountADesired, reserveA, reserveB);
            if (amountBOptimal <= amountBDesired) {
                require(amountBOptimal >= amountBMin, "DackieRouter: INSUFFICIENT_B_AMOUNT");
                (amountA, amountB) = (amountADesired, amountBOptimal);
            } else {
                uint256 amountAOptimal = DackieLibrary.quote(amountBDesired, reserveB, reserveA);
                assert(amountAOptimal <= amountADesired);
                require(amountAOptimal >= amountAMin, "DackieRouter: INSUFFICIENT_A_AMOUNT");
                (amountA, amountB) = (amountAOptimal, amountBDesired);
            }
        }
    }

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        virtual
        override
        ensure(deadline)
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        )
    {
        (amountA, amountB) = _addLiquidity(tokenA, tokenB, amountADesired, amountBDesired, amountAMin, amountBMin);
        address pair = DackieLibrary.pairFor(factory, tokenA, tokenB);
        TransferHelper.safeTransferFrom(tokenA, msg.sender, pair, amountA);
        TransferHelper.safeTransferFrom(tokenB, msg.sender, pair, amountB);
        liquidity = IDackiePair(pair).mint(to);
    }

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        virtual
        override
        ensure(deadline)
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        )
    {
        (amountToken, amountETH) = _addLiquidity(
            token,
            WETH,
            amountTokenDesired,
            msg.value,
            amountTokenMin,
            amountETHMin
        );
        address pair = DackieLibrary.pairFor(factory, token, WETH);
        TransferHelper.safeTransferFrom(token, msg.sender, pair, amountToken);
        IWETH(WETH).deposit{value: amountETH}();
        assert(IWETH(WETH).transfer(pair, amountETH));
        liquidity = IDackiePair(pair).mint(to);
        // refund dust eth, if any
        if (msg.value > amountETH) TransferHelper.safeTransferETH(msg.sender, msg.value - amountETH);
    }

    // **** REMOVE LIQUIDITY ****
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) public virtual override ensure(deadline) returns (uint256 amountA, uint256 amountB) {
        address pair = DackieLibrary.pairFor(factory, tokenA, tokenB);
        IDackiePair(pair).transferFrom(msg.sender, pair, liquidity); // send liquidity to pair
        (uint256 amount0, uint256 amount1) = IDackiePair(pair).burn(to);
        (address token0, ) = DackieLibrary.sortTokens(tokenA, tokenB);
        (amountA, amountB) = tokenA == token0 ? (amount0, amount1) : (amount1, amount0);
        require(amountA >= amountAMin, "DackieRouter: INSUFFICIENT_A_AMOUNT");
        require(amountB >= amountBMin, "DackieRouter: INSUFFICIENT_B_AMOUNT");
    }

    function removeLiquidityETH(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) public virtual override ensure(deadline) returns (uint256 amountToken, uint256 amountETH) {
        (amountToken, amountETH) = removeLiquidity(
            token,
            WETH,
            liquidity,
            amountTokenMin,
            amountETHMin,
            address(this),
            deadline
        );
        TransferHelper.safeTransfer(token, to, amountToken);
        IWETH(WETH).withdraw(amountETH);
        TransferHelper.safeTransferETH(to, amountETH);
    }

    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external virtual override returns (uint256 amountA, uint256 amountB) {
        address pair = DackieLibrary.pairFor(factory, tokenA, tokenB);
        uint256 value = approveMax ? uint256(-1) : liquidity;
        IDackiePair(pair).permit(msg.sender, address(this), value, deadline, v, r, s);
        (amountA, amountB) = removeLiquidity(tokenA, tokenB, liquidity, amountAMin, amountBMin, to, deadline);
    }

    function removeLiquidityETHWithPermit(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external virtual override returns (uint256 amountToken, uint256 amountETH) {
        address pair = DackieLibrary.pairFor(factory, token, WETH);
        uint256 value = approveMax ? uint256(-1) : liquidity;
        IDackiePair(pair).permit(msg.sender, address(this), value, deadline, v, r, s);
        (amountToken, amountETH) = removeLiquidityETH(token, liquidity, amountTokenMin, amountETHMin, to, deadline);
    }

    // **** REMOVE LIQUIDITY (supporting fee-on-transfer tokens) ****
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) public virtual override ensure(deadline) returns (uint256 amountETH) {
        (, amountETH) = removeLiquidity(token, WETH, liquidity, amountTokenMin, amountETHMin, address(this), deadline);
        TransferHelper.safeTransfer(token, to, IERC20(token).balanceOf(address(this)));
        IWETH(WETH).withdraw(amountETH);
        TransferHelper.safeTransferETH(to, amountETH);
    }

    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external virtual override returns (uint256 amountETH) {
        address pair = DackieLibrary.pairFor(factory, token, WETH);
        uint256 value = approveMax ? uint256(-1) : liquidity;
        IDackiePair(pair).permit(msg.sender, address(this), value, deadline, v, r, s);
        amountETH = removeLiquidityETHSupportingFeeOnTransferTokens(
            token,
            liquidity,
            amountTokenMin,
            amountETHMin,
            to,
            deadline
        );
    }

    // **** SWAP ****
    // requires the initial amount to have already been sent to the first pair
    function _swap(
        uint256[] memory amounts,
        address[] memory path,
        address _to
    ) internal virtual {
        for (uint256 i; i < path.length - 1; i++) {
            (address input, address output) = (path[i], path[i + 1]);
            (address token0, ) = DackieLibrary.sortTokens(input, output);
            uint256 amountOut = amounts[i + 1];
            (uint256 amount0Out, uint256 amount1Out) =
                input == token0 ? (uint256(0), amountOut) : (amountOut, uint256(0));
            address to = i < path.length - 2 ? DackieLibrary.pairFor(factory, output, path[i + 2]) : _to;
            IDackiePair(DackieLibrary.pairFor(factory, input, output)).swap(amount0Out, amount1Out, to, new bytes(0));
        }
    }

    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external virtual override ensure(deadline) returns (uint256[] memory amounts) {
        amounts = DackieLibrary.getAmountsOut(factory, amountIn, path);
        require(amounts[amounts.length - 1] >= amountOutMin, "DackieRouter: INSUFFICIENT_OUTPUT_AMOUNT");
        TransferHelper.safeTransferFrom(
            path[0],
            msg.sender,
            DackieLibrary.pairFor(factory, path[0], path[1]),
            amounts[0]
        );
        _swap(amounts, path, to);
    }

    function swapTokensForExactTokens(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external virtual override ensure(deadline) returns (uint256[] memory amounts) {
        amounts = DackieLibrary.getAmountsIn(factory, amountOut, path);
        require(amounts[0] <= amountInMax, "DackieRouter: EXCESSIVE_INPUT_AMOUNT");
        TransferHelper.safeTransferFrom(
            path[0],
            msg.sender,
            DackieLibrary.pairFor(factory, path[0], path[1]),
            amounts[0]
        );
        _swap(amounts, path, to);
    }

    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable virtual override ensure(deadline) returns (uint256[] memory amounts) {
        require(path[0] == WETH, "DackieRouter: INVALID_PATH");
        amounts = DackieLibrary.getAmountsOut(factory, msg.value, path);
        require(amounts[amounts.length - 1] >= amountOutMin, "DackieRouter: INSUFFICIENT_OUTPUT_AMOUNT");
        IWETH(WETH).deposit{value: amounts[0]}();
        assert(IWETH(WETH).transfer(DackieLibrary.pairFor(factory, path[0], path[1]), amounts[0]));
        _swap(amounts, path, to);
    }

    function swapTokensForExactETH(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external virtual override ensure(deadline) returns (uint256[] memory amounts) {
        require(path[path.length - 1] == WETH, "DackieRouter: INVALID_PATH");
        amounts = DackieLibrary.getAmountsIn(factory, amountOut, path);
        require(amounts[0] <= amountInMax, "DackieRouter: EXCESSIVE_INPUT_AMOUNT");
        TransferHelper.safeTransferFrom(
            path[0],
            msg.sender,
            DackieLibrary.pairFor(factory, path[0], path[1]),
            amounts[0]
        );
        _swap(amounts, path, address(this));
        IWETH(WETH).withdraw(amounts[amounts.length - 1]);
        TransferHelper.safeTransferETH(to, amounts[amounts.length - 1]);
    }

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external virtual override ensure(deadline) returns (uint256[] memory amounts) {
        require(path[path.length - 1] == WETH, "DackieRouter: INVALID_PATH");
        amounts = DackieLibrary.getAmountsOut(factory, amountIn, path);
        require(amounts[amounts.length - 1] >= amountOutMin, "DackieRouter: INSUFFICIENT_OUTPUT_AMOUNT");
        TransferHelper.safeTransferFrom(
            path[0],
            msg.sender,
            DackieLibrary.pairFor(factory, path[0], path[1]),
            amounts[0]
        );
        _swap(amounts, path, address(this));
        IWETH(WETH).withdraw(amounts[amounts.length - 1]);
        TransferHelper.safeTransferETH(to, amounts[amounts.length - 1]);
    }

    function swapETHForExactTokens(
        uint256 amountOut,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable virtual override ensure(deadline) returns (uint256[] memory amounts) {
        require(path[0] == WETH, "DackieRouter: INVALID_PATH");
        amounts = DackieLibrary.getAmountsIn(factory, amountOut, path);
        require(amounts[0] <= msg.value, "DackieRouter: EXCESSIVE_INPUT_AMOUNT");
        IWETH(WETH).deposit{value: amounts[0]}();
        assert(IWETH(WETH).transfer(DackieLibrary.pairFor(factory, path[0], path[1]), amounts[0]));
        _swap(amounts, path, to);
        // refund dust eth, if any
        if (msg.value > amounts[0]) TransferHelper.safeTransferETH(msg.sender, msg.value - amounts[0]);
    }

    // **** SWAP (supporting fee-on-transfer tokens) ****
    // requires the initial amount to have already been sent to the first pair
    function _swapSupportingFeeOnTransferTokens(address[] memory path, address _to) internal virtual {
        for (uint256 i; i < path.length - 1; i++) {
            (address input, address output) = (path[i], path[i + 1]);
            (address token0, ) = DackieLibrary.sortTokens(input, output);
            IDackiePair pair = IDackiePair(DackieLibrary.pairFor(factory, input, output));
            uint256 amountInput;
            uint256 amountOutput;
            {
                // scope to avoid stack too deep errors
                (uint256 reserve0, uint256 reserve1, ) = pair.getReserves();
                (uint256 reserveInput, uint256 reserveOutput) =
                    input == token0 ? (reserve0, reserve1) : (reserve1, reserve0);
                amountInput = IERC20(input).balanceOf(address(pair)).sub(reserveInput);
                amountOutput = DackieLibrary.getAmountOut(amountInput, reserveInput, reserveOutput);
            }
            (uint256 amount0Out, uint256 amount1Out) =
                input == token0 ? (uint256(0), amountOutput) : (amountOutput, uint256(0));
            address to = i < path.length - 2 ? DackieLibrary.pairFor(factory, output, path[i + 2]) : _to;
            pair.swap(amount0Out, amount1Out, to, new bytes(0));
        }
    }

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external virtual override ensure(deadline) {
        TransferHelper.safeTransferFrom(
            path[0],
            msg.sender,
            DackieLibrary.pairFor(factory, path[0], path[1]),
            amountIn
        );
        uint256 balanceBefore = IERC20(path[path.length - 1]).balanceOf(to);
        _swapSupportingFeeOnTransferTokens(path, to);
        require(
            IERC20(path[path.length - 1]).balanceOf(to).sub(balanceBefore) >= amountOutMin,
            "DackieRouter: INSUFFICIENT_OUTPUT_AMOUNT"
        );
    }

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable virtual override ensure(deadline) {
        require(path[0] == WETH, "DackieRouter: INVALID_PATH");
        uint256 amountIn = msg.value;
        IWETH(WETH).deposit{value: amountIn}();
        assert(IWETH(WETH).transfer(DackieLibrary.pairFor(factory, path[0], path[1]), amountIn));
        uint256 balanceBefore = IERC20(path[path.length - 1]).balanceOf(to);
        _swapSupportingFeeOnTransferTokens(path, to);
        require(
            IERC20(path[path.length - 1]).balanceOf(to).sub(balanceBefore) >= amountOutMin,
            "DackieRouter: INSUFFICIENT_OUTPUT_AMOUNT"
        );
    }

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external virtual override ensure(deadline) {
        require(path[path.length - 1] == WETH, "DackieRouter: INVALID_PATH");
        TransferHelper.safeTransferFrom(
            path[0],
            msg.sender,
            DackieLibrary.pairFor(factory, path[0], path[1]),
            amountIn
        );
        _swapSupportingFeeOnTransferTokens(path, address(this));
        uint256 amountOut = IERC20(WETH).balanceOf(address(this));
        require(amountOut >= amountOutMin, "DackieRouter: INSUFFICIENT_OUTPUT_AMOUNT");
        IWETH(WETH).withdraw(amountOut);
        TransferHelper.safeTransferETH(to, amountOut);
    }

    // **** LIBRARY FUNCTIONS ****
    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) public pure virtual override returns (uint256 amountB) {
        return DackieLibrary.quote(amountA, reserveA, reserveB);
    }

    function getAmountOut(
        uint256 amountIn,
        uint256 reserveIn,
        uint256 reserveOut
    ) public pure virtual override returns (uint256 amountOut) {
        return DackieLibrary.getAmountOut(amountIn, reserveIn, reserveOut);
    }

    function getAmountIn(
        uint256 amountOut,
        uint256 reserveIn,
        uint256 reserveOut
    ) public pure virtual override returns (uint256 amountIn) {
        return DackieLibrary.getAmountIn(amountOut, reserveIn, reserveOut);
    }

    function getAmountsOut(uint256 amountIn, address[] memory path)
        public
        view
        virtual
        override
        returns (uint256[] memory amounts)
    {
        return DackieLibrary.getAmountsOut(factory, amountIn, path);
    }

    function getAmountsIn(uint256 amountOut, address[] memory path)
        public
        view
        virtual
        override
        returns (uint256[] memory amounts)
    {
        return DackieLibrary.getAmountsIn(factory, amountOut, path);
    }
}

File 3 of 10 : IDackieFactory.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;

interface IDackieFactory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint256);

    function feeTo() external view returns (address);

    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);

    function allPairs(uint256) external view returns (address pair);

    function allPairsLength() external view returns (uint256);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;

    function setFeeToSetter(address) external;

    function INIT_CODE_PAIR_HASH() external view returns (bytes32);
}

File 4 of 10 : IDackiePair.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;

interface IDackiePair {
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address owner) external view returns (uint256);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint256);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    event Mint(address indexed sender, uint256 amount0, uint256 amount1);
    event Burn(address indexed sender, uint256 amount0, uint256 amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint256 amount0In,
        uint256 amount1In,
        uint256 amount0Out,
        uint256 amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);

    function factory() external view returns (address);

    function token0() external view returns (address);

    function token1() external view returns (address);

    function getReserves()
        external
        view
        returns (
            uint112 reserve0,
            uint112 reserve1,
            uint32 blockTimestampLast
        );

    function price0CumulativeLast() external view returns (uint256);

    function price1CumulativeLast() external view returns (uint256);

    function kLast() external view returns (uint256);

    function mint(address to) external returns (uint256 liquidity);

    function burn(address to) external returns (uint256 amount0, uint256 amount1);

    function swap(
        uint256 amount0Out,
        uint256 amount1Out,
        address to,
        bytes calldata data
    ) external;

    function skim(address to) external;

    function sync() external;

    function initialize(address, address) external;
}

File 5 of 10 : IDackieRouter01.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.6.2;

interface IDackieRouter01 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETH(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountToken, uint256 amountETH);

    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETHWithPermit(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountToken, uint256 amountETH);

    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapTokensForExactTokens(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function swapTokensForExactETH(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapETHForExactTokens(
        uint256 amountOut,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) external pure returns (uint256 amountB);

    function getAmountOut(
        uint256 amountIn,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountOut);

    function getAmountIn(
        uint256 amountOut,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountIn);

    function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts);

    function getAmountsIn(uint256 amountOut, address[] calldata path) external view returns (uint256[] memory amounts);
}

File 6 of 10 : IDackieRouter02.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.6.2;

import "./IDackieRouter01.sol";

interface IDackieRouter02 is IDackieRouter01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountETH);

    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable;

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

File 7 of 10 : IERC20.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address owner) external view returns (uint256);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 value) external returns (bool);

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);
}

File 8 of 10 : IWETH.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;

interface IWETH {
    function deposit() external payable;

    function transfer(address to, uint256 value) external returns (bool);

    function withdraw(uint256) external;
}

File 9 of 10 : DackieLibrary.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0;

import "./SafeMath.sol";
import "../interfaces/IDackieFactory.sol";
import "../interfaces/IDackiePair.sol";

library DackieLibrary {
    using SafeMath for uint256;

    // returns sorted token addresses, used to handle return values from pairs sorted in this order
    function sortTokens(address tokenA, address tokenB) internal pure returns (address token0, address token1) {
        require(tokenA != tokenB, "DackieLibrary: IDENTICAL_ADDRESSES");
        (token0, token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), "DackieLibrary: ZERO_ADDRESS");
    }

    // calculates the CREATE2 address for a pair without making any external calls
    function pairFor(
        address factory,
        address tokenA,
        address tokenB
    ) internal pure returns (address pair) {
        (address token0, address token1) = sortTokens(tokenA, tokenB);
        pair = address(
            uint256(
                keccak256(
                    abi.encodePacked(
                        hex"ff",
                        factory,
                        keccak256(abi.encodePacked(token0, token1)),
                        hex"447579b54f79403d3f8a02bf40619bb39e6fa0bf16b74e503d90a9b108e3fd9a" // init code hash
                    )
                )
            )
        );
    }

    // fetches and sorts the reserves for a pair
    function getReserves(
        address factory,
        address tokenA,
        address tokenB
    ) internal view returns (uint256 reserveA, uint256 reserveB) {
        (address token0, ) = sortTokens(tokenA, tokenB);
        pairFor(factory, tokenA, tokenB);
        (uint256 reserve0, uint256 reserve1, ) = IDackiePair(pairFor(factory, tokenA, tokenB)).getReserves();
        (reserveA, reserveB) = tokenA == token0 ? (reserve0, reserve1) : (reserve1, reserve0);
    }

    // given some amount of an asset and pair reserves, returns an equivalent amount of the other asset
    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) internal pure returns (uint256 amountB) {
        require(amountA > 0, "DackieLibrary: INSUFFICIENT_AMOUNT");
        require(reserveA > 0 && reserveB > 0, "DackieLibrary: INSUFFICIENT_LIQUIDITY");
        amountB = amountA.mul(reserveB) / reserveA;
    }

    // given an input amount of an asset and pair reserves, returns the maximum output amount of the other asset
    function getAmountOut(
        uint256 amountIn,
        uint256 reserveIn,
        uint256 reserveOut
    ) internal pure returns (uint256 amountOut) {
        require(amountIn > 0, "DackieLibrary: INSUFFICIENT_INPUT_AMOUNT");
        require(reserveIn > 0 && reserveOut > 0, "DackieLibrary: INSUFFICIENT_LIQUIDITY");
        uint256 amountInWithFee = amountIn.mul(997);
        uint256 numerator = amountInWithFee.mul(reserveOut);
        uint256 denominator = reserveIn.mul(1000).add(amountInWithFee);
        amountOut = numerator / denominator;
    }

    // given an output amount of an asset and pair reserves, returns a required input amount of the other asset
    function getAmountIn(
        uint256 amountOut,
        uint256 reserveIn,
        uint256 reserveOut
    ) internal pure returns (uint256 amountIn) {
        require(amountOut > 0, "DackieLibrary: INSUFFICIENT_OUTPUT_AMOUNT");
        require(reserveIn > 0 && reserveOut > 0, "DackieLibrary: INSUFFICIENT_LIQUIDITY");
        uint256 numerator = reserveIn.mul(amountOut).mul(1000);
        uint256 denominator = reserveOut.sub(amountOut).mul(997);
        amountIn = (numerator / denominator).add(1);
    }

    // performs chained getAmountOut calculations on any number of pairs
    function getAmountsOut(
        address factory,
        uint256 amountIn,
        address[] memory path
    ) internal view returns (uint256[] memory amounts) {
        require(path.length >= 2, "DackieLibrary: INVALID_PATH");
        amounts = new uint256[](path.length);
        amounts[0] = amountIn;
        for (uint256 i; i < path.length - 1; i++) {
            (uint256 reserveIn, uint256 reserveOut) = getReserves(factory, path[i], path[i + 1]);
            amounts[i + 1] = getAmountOut(amounts[i], reserveIn, reserveOut);
        }
    }

    // performs chained getAmountIn calculations on any number of pairs
    function getAmountsIn(
        address factory,
        uint256 amountOut,
        address[] memory path
    ) internal view returns (uint256[] memory amounts) {
        require(path.length >= 2, "DackieLibrary: INVALID_PATH");
        amounts = new uint256[](path.length);
        amounts[amounts.length - 1] = amountOut;
        for (uint256 i = path.length - 1; i > 0; i--) {
            (uint256 reserveIn, uint256 reserveOut) = getReserves(factory, path[i - 1], path[i]);
            amounts[i - 1] = getAmountIn(amounts[i], reserveIn, reserveOut);
        }
    }
}

File 10 of 10 : SafeMath.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.5.0 <0.7.0;

// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)

library SafeMath {
    function add(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require((z = x + y) >= x, "ds-math-add-overflow");
    }

    function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require((z = x - y) <= x, "ds-math-sub-underflow");
    }

    function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require(y == 0 || (z = x * y) / y == x, "ds-math-mul-overflow");
    }
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 99999
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_factory","type":"address"},{"internalType":"address","name":"_WETH","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"amountADesired","type":"uint256"},{"internalType":"uint256","name":"amountBDesired","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidity","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"},{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountTokenDesired","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityETH","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"},{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"reserveIn","type":"uint256"},{"internalType":"uint256","name":"reserveOut","type":"uint256"}],"name":"getAmountIn","outputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"reserveIn","type":"uint256"},{"internalType":"uint256","name":"reserveOut","type":"uint256"}],"name":"getAmountOut","outputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsIn","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsOut","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"reserveA","type":"uint256"},{"internalType":"uint256","name":"reserveB","type":"uint256"}],"name":"quote","outputs":[{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidity","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityETH","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityETHSupportingFeeOnTransferTokens","outputs":[{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityETHWithPermit","outputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"},{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountTokenMin","type":"uint256"},{"internalType":"uint256","name":"amountETHMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityETHWithPermitSupportingFeeOnTransferTokens","outputs":[{"internalType":"uint256","name":"amountETH","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"},{"internalType":"uint256","name":"liquidity","type":"uint256"},{"internalType":"uint256","name":"amountAMin","type":"uint256"},{"internalType":"uint256","name":"amountBMin","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"bool","name":"approveMax","type":"bool"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"removeLiquidityWithPermit","outputs":[{"internalType":"uint256","name":"amountA","type":"uint256"},{"internalType":"uint256","name":"amountB","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapETHForExactTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactETHForTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactETHForTokensSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForETH","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForETHSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapExactTokensForTokensSupportingFeeOnTransferTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapTokensForExactETH","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountOut","type":"uint256"},{"internalType":"uint256","name":"amountInMax","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swapTokensForExactTokens","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

0000000000000000000000001d25b9d81623a093ffc2b02e8da1d006b16f0ad80000000000000000000000004200000000000000000000000000000000000006

-----Decoded View---------------
Arg [0] : _factory (address): 0x1D25b9D81623a093ffc2b02E8da1d006b16F0AD8
Arg [1] : _WETH (address): 0x4200000000000000000000000000000000000006

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000001d25b9d81623a093ffc2b02e8da1d006b16f0ad8
Arg [1] : 0000000000000000000000004200000000000000000000000000000000000006


Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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