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Contract

0xB7f907f7A9eBC822a80BD25E224be42Ce0A698A0
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Method
Block
From
To
Create Pair66009172024-08-30 15:33:3611 days ago1725032016IN
0xB7f907f7...Ce0A698A0
0 ETH0.0288777714.34196958
Create Pair64825562024-08-11 23:45:3630 days ago1723419936IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64825552024-08-11 23:45:2430 days ago1723419924IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64746362024-08-10 17:55:4831 days ago1723312548IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64746342024-08-10 17:55:2431 days ago1723312524IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64746022024-08-10 17:48:4831 days ago1723312128IN
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0 ETH0.015
Create Pair64746002024-08-10 17:48:2431 days ago1723312104IN
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0 ETH0.000123155
Create Pair64745922024-08-10 17:46:3631 days ago1723311996IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64745902024-08-10 17:46:1231 days ago1723311972IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64711192024-08-10 4:38:4832 days ago1723264728IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64711172024-08-10 4:38:1232 days ago1723264692IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64711142024-08-10 4:37:3632 days ago1723264656IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64711132024-08-10 4:37:2432 days ago1723264644IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64586912024-08-08 5:08:3634 days ago1723093716IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64586892024-08-08 5:08:1234 days ago1723093692IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64586812024-08-08 5:06:2434 days ago1723093584IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64586792024-08-08 5:06:0034 days ago1723093560IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64586582024-08-08 5:01:1234 days ago1723093272IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64586562024-08-08 5:00:4834 days ago1723093248IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64586482024-08-08 4:59:0034 days ago1723093140IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64586452024-08-08 4:58:2434 days ago1723093104IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64586452024-08-08 4:58:2434 days ago1723093104IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64586452024-08-08 4:58:2434 days ago1723093104IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
Create Pair64585802024-08-08 4:42:1234 days ago1723092132IN
0xB7f907f7...Ce0A698A0
0 ETH0.015
Create Pair64585772024-08-08 4:41:3634 days ago1723092096IN
0xB7f907f7...Ce0A698A0
0 ETH0.000123155
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66009172024-08-30 15:33:3611 days ago1725032016
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65837342024-08-27 21:51:0014 days ago1724795460
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65346412024-08-20 4:24:1222 days ago1724127852
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65053392024-08-15 14:02:2426 days ago1723730544
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65002542024-08-14 18:56:3627 days ago1723661796
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64922222024-08-13 12:39:4828 days ago1723552788
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64880232024-08-12 20:42:1229 days ago1723495332
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64863312024-08-12 14:22:1229 days ago1723472532
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64844722024-08-12 7:20:4829 days ago1723447248
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64836462024-08-12 4:01:2430 days ago1723435284
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64825562024-08-11 23:45:3630 days ago1723419936
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64812522024-08-11 18:54:4830 days ago1723402488
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64811972024-08-11 18:42:3630 days ago1723401756
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64810822024-08-11 18:17:3630 days ago1723400256
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64804362024-08-11 15:48:4830 days ago1723391328
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64804132024-08-11 15:43:3630 days ago1723391016
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64803872024-08-11 15:37:3630 days ago1723390656
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64746362024-08-10 17:55:4831 days ago1723312548
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64746022024-08-10 17:48:4831 days ago1723312128
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64745922024-08-10 17:46:3631 days ago1723311996
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64726282024-08-10 10:20:2431 days ago1723285224
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64711192024-08-10 4:38:4832 days ago1723264728
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64711142024-08-10 4:37:3632 days ago1723264656
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64632062024-08-08 22:28:1233 days ago1723156092
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64629342024-08-08 21:26:1233 days ago1723152372
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Contract Source Code Verified (Exact Match)

Contract Name:
UniswapV2Factory

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
Yes with 200 runs

Other Settings:
istanbul EvmVersion, GNU GPLv3 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2023-05-20
*/

// File contracts/interfaces/IUniswapV2ERC20.sol

pragma solidity >=0.5.0;

interface IUniswapV2ERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint 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 (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint 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 (uint);

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


// File contracts/libraries/SafeMath.sol

pragma solidity =0.5.16;

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

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

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

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


// File contracts/UniswapV2ERC20.sol

pragma solidity =0.5.16;


contract UniswapV2ERC20 is IUniswapV2ERC20 {
    using SafeMath for uint;

    string public constant name = 'Uniswap V2';
    string public constant symbol = 'UNI-V2';
    uint8 public constant decimals = 18;
    uint  public totalSupply;
    mapping(address => uint) public balanceOf;
    mapping(address => mapping(address => uint)) public allowance;

    bytes32 public DOMAIN_SEPARATOR;
    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
    mapping(address => uint) public nonces;

    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    constructor() public {
        uint chainId;
        assembly {
            chainId := chainid
        }
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
                keccak256(bytes(name)),
                keccak256(bytes('1')),
                chainId,
                address(this)
            )
        );
    }

    function _mint(address to, uint value) internal {
        totalSupply = totalSupply.add(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(address(0), to, value);
    }

    function _burn(address from, uint value) internal {
        balanceOf[from] = balanceOf[from].sub(value);
        totalSupply = totalSupply.sub(value);
        emit Transfer(from, address(0), value);
    }

    function _approve(address owner, address spender, uint value) private {
        allowance[owner][spender] = value;
        emit Approval(owner, spender, value);
    }

    function _transfer(address from, address to, uint value) private {
        balanceOf[from] = balanceOf[from].sub(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(from, to, value);
    }

    function approve(address spender, uint value) external returns (bool) {
        _approve(msg.sender, spender, value);
        return true;
    }

    function transfer(address to, uint value) external returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint value) external returns (bool) {
        if (allowance[from][msg.sender] != uint(-1)) {
            allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
        }
        _transfer(from, to, value);
        return true;
    }

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
        require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
        bytes32 digest = keccak256(
            abi.encodePacked(
                '\x19\x01',
                DOMAIN_SEPARATOR,
                keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
            )
        );
        address recoveredAddress = ecrecover(digest, v, r, s);
        require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }
}


// File contracts/interfaces/IUniswapV2Factory.sol

pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    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(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

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

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}


// File contracts/interfaces/IERC20.sol

pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint 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 (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}


// File contracts/interfaces/IUniswapV2Callee.sol

pragma solidity >=0.5.0;

interface IUniswapV2Callee {
    function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}


// File contracts/interfaces/IUniswapV2Pair.sol

pragma solidity >=0.5.0;

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint 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 (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint 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 (uint);

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

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

    function MINIMUM_LIQUIDITY() external pure returns (uint);
    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 (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}


// File contracts/libraries/Math.sol

pragma solidity =0.5.16;

// a library for performing various math operations

library Math {
    function min(uint x, uint y) internal pure returns (uint z) {
        z = x < y ? x : y;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrt(uint y) internal pure returns (uint z) {
        if (y > 3) {
            z = y;
            uint x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}


// File contracts/libraries/UQ112x112.sol

pragma solidity =0.5.16;

// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))

// range: [0, 2**112 - 1]
// resolution: 1 / 2**112

library UQ112x112 {
    uint224 constant Q112 = 2**112;

    // encode a uint112 as a UQ112x112
    function encode(uint112 y) internal pure returns (uint224 z) {
        z = uint224(y) * Q112; // never overflows
    }

    // divide a UQ112x112 by a uint112, returning a UQ112x112
    function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
        z = x / uint224(y);
    }
}


// File contracts/UniswapV2Pair.sol

pragma solidity =0.5.16;







contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
    using SafeMath  for uint;
    using UQ112x112 for uint224;

    uint public constant MINIMUM_LIQUIDITY = 10**3;
    bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));

    address public factory;
    address public token0;
    address public token1;

    uint112 private reserve0;           // uses single storage slot, accessible via getReserves
    uint112 private reserve1;           // uses single storage slot, accessible via getReserves
    uint32  private blockTimestampLast; // uses single storage slot, accessible via getReserves

    uint public price0CumulativeLast;
    uint public price1CumulativeLast;
    uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event

    uint private unlocked = 1;
    modifier lock() {
        require(unlocked == 1, 'UniswapV2: LOCKED');
        unlocked = 0;
        _;
        unlocked = 1;
    }

    function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
        _reserve0 = reserve0;
        _reserve1 = reserve1;
        _blockTimestampLast = blockTimestampLast;
    }

    function _safeTransfer(address token, address to, uint value) private {
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
    }

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

    constructor() public {
        factory = msg.sender;
    }

    // called once by the factory at time of deployment
    function initialize(address _token0, address _token1) external {
        require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
        token0 = _token0;
        token1 = _token1;
    }

    // update reserves and, on the first call per block, price accumulators
    function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
        require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
        uint32 blockTimestamp = uint32(block.timestamp % 2**32);
        uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
        if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
            // * never overflows, and + overflow is desired
            price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
            price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
        }
        reserve0 = uint112(balance0);
        reserve1 = uint112(balance1);
        blockTimestampLast = blockTimestamp;
        emit Sync(reserve0, reserve1);
    }

    // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
    function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
        address feeTo = IUniswapV2Factory(factory).feeTo();
        feeOn = feeTo != address(0);
        uint _kLast = kLast; // gas savings
        if (feeOn) {
            if (_kLast != 0) {
                uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
                uint rootKLast = Math.sqrt(_kLast);
                if (rootK > rootKLast) {
                    uint numerator = totalSupply.mul(rootK.sub(rootKLast));
                    uint denominator = rootK.mul(5).add(rootKLast);
                    uint liquidity = numerator / denominator;
                    if (liquidity > 0) _mint(feeTo, liquidity);
                }
            }
        } else if (_kLast != 0) {
            kLast = 0;
        }
    }

    // this low-level function should be called from a contract which performs important safety checks
    function mint(address to) external lock returns (uint liquidity) {
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        uint balance0 = IERC20(token0).balanceOf(address(this));
        uint balance1 = IERC20(token1).balanceOf(address(this));
        uint amount0 = balance0.sub(_reserve0);
        uint amount1 = balance1.sub(_reserve1);

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        if (_totalSupply == 0) {
            liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
           _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
        } else {
            liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
        }
        require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
        _mint(to, liquidity);

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
        emit Mint(msg.sender, amount0, amount1);
    }

    // this low-level function should be called from a contract which performs important safety checks
    function burn(address to) external lock returns (uint amount0, uint amount1) {
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        address _token0 = token0;                                // gas savings
        address _token1 = token1;                                // gas savings
        uint balance0 = IERC20(_token0).balanceOf(address(this));
        uint balance1 = IERC20(_token1).balanceOf(address(this));
        uint liquidity = balanceOf[address(this)];

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
        amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
        require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
        _burn(address(this), liquidity);
        _safeTransfer(_token0, to, amount0);
        _safeTransfer(_token1, to, amount1);
        balance0 = IERC20(_token0).balanceOf(address(this));
        balance1 = IERC20(_token1).balanceOf(address(this));

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
        emit Burn(msg.sender, amount0, amount1, to);
    }

    // this low-level function should be called from a contract which performs important safety checks
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
        require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');

        uint balance0;
        uint balance1;
        { // scope for _token{0,1}, avoids stack too deep errors
        address _token0 = token0;
        address _token1 = token1;
        require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
        if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
        if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
        if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
        balance0 = IERC20(_token0).balanceOf(address(this));
        balance1 = IERC20(_token1).balanceOf(address(this));
        }
        uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
        uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
        require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
        uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
        uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
        require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
        }

        _update(balance0, balance1, _reserve0, _reserve1);
        emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
    }

    // force balances to match reserves
    function skim(address to) external lock {
        address _token0 = token0; // gas savings
        address _token1 = token1; // gas savings
        _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
        _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
    }

    // force reserves to match balances
    function sync() external lock {
        _update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
    }
}


// File contracts/UniswapV2Factory.sol

pragma solidity =0.5.16;


contract UniswapV2Factory is IUniswapV2Factory {
    address public feeTo;
    address public feeToSetter;

    mapping(address => mapping(address => address)) public getPair;
    address[] public allPairs;

    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    constructor(address _feeToSetter) public {
        feeToSetter = _feeToSetter;
    }

    function allPairsLength() external view returns (uint) {
        return allPairs.length;
    }

    function createPair(address tokenA, address tokenB) external returns (address pair) {
        require(tokenA != tokenB, 'UniswapV2: IDENTICAL_ADDRESSES');
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'UniswapV2: ZERO_ADDRESS');
        require(getPair[token0][token1] == address(0), 'UniswapV2: PAIR_EXISTS'); // single check is sufficient
        bytes memory bytecode = type(UniswapV2Pair).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
        assembly {
            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }
        IUniswapV2Pair(pair).initialize(token0, token1);
        getPair[token0][token1] = pair;
        getPair[token1][token0] = pair; // populate mapping in the reverse direction
        allPairs.push(pair);
        emit PairCreated(token0, token1, pair, allPairs.length);
    }

    function setFeeTo(address _feeTo) external {
        require(msg.sender == feeToSetter, 'UniswapV2: FORBIDDEN');
        feeTo = _feeTo;
    }

    function setFeeToSetter(address _feeToSetter) external {
        require(msg.sender == feeToSetter, 'UniswapV2: FORBIDDEN');
        feeToSetter = _feeToSetter;
    }
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"_feeToSetter","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token0","type":"address"},{"indexed":true,"internalType":"address","name":"token1","type":"address"},{"indexed":false,"internalType":"address","name":"pair","type":"address"},{"indexed":false,"internalType":"uint256","name":"","type":"uint256"}],"name":"PairCreated","type":"event"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"allPairs","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"allPairsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"tokenA","type":"address"},{"internalType":"address","name":"tokenB","type":"address"}],"name":"createPair","outputs":[{"internalType":"address","name":"pair","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"feeTo","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"feeToSetter","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"getPair","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_feeTo","type":"address"}],"name":"setFeeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_feeToSetter","type":"address"}],"name":"setFeeToSetter","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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

0000000000000000000000003344BBDCeb8f6fb52de759c127E4A44EFb40432A

-----Decoded View---------------
Arg [0] : _feeToSetter (address): 0x3344BBDCeb8f6fb52de759c127E4A44EFb40432A

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000003344BBDCeb8f6fb52de759c127E4A44EFb40432A


Deployed Bytecode Sourcemap

20883:1807:0:-;;;;8:9:-1;5:2;;;30:1;27;20:12;5:2;20883:1807:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;20937:20;;;:::i;:::-;;;;-1:-1:-1;;;;;20937:20:0;;;;;;;;;;;;;;20964:26;;;:::i;21068:25::-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;21068:25:0;;:::i;21290:96::-;;;:::i;:::-;;;;;;;;;;;;;;;;22518:169;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;22518:169:0;-1:-1:-1;;;;;22518:169:0;;:::i;:::-;;21394:963;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;21394:963:0;;;;;;;;;;:::i;20999:62::-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;;;;;;20999:62:0;;;;;;;;;;:::i;22365:145::-;;;;;;13:2:-1;8:3;5:11;2:2;;;29:1;26;19:12;2:2;-1:-1;22365:145:0;-1:-1:-1;;;;;22365:145:0;;:::i;20937:20::-;;;-1:-1:-1;;;;;20937:20:0;;:::o;20964:26::-;;;-1:-1:-1;;;;;20964:26:0;;:::o;21068:25::-;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;21068:25:0;;-1:-1:-1;21068:25:0;:::o;21290:96::-;21363:8;:15;21290:96;:::o;22518:169::-;22606:11;;-1:-1:-1;;;;;22606:11:0;22592:10;:25;22584:58;;;;;-1:-1:-1;;;22584:58:0;;;;;;;;;;;;-1:-1:-1;;;22584:58:0;;;;;;;;;;;;;;;22653:11;:26;;-1:-1:-1;;;;;;22653:26:0;-1:-1:-1;;;;;22653:26:0;;;;;;;;;;22518:169::o;21394:963::-;21464:12;21507:6;-1:-1:-1;;;;;21497:16:0;:6;-1:-1:-1;;;;;21497:16:0;;;21489:59;;;;;-1:-1:-1;;;21489:59:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;21560:14;21576;21603:6;-1:-1:-1;;;;;21594:15:0;:6;-1:-1:-1;;;;;21594:15:0;;:53;;21632:6;21640;21594:53;;;21613:6;21621;21594:53;21559:88;;-1:-1:-1;21559:88:0;-1:-1:-1;;;;;;21666:20:0;;21658:56;;;;;-1:-1:-1;;;21658:56:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;21733:15:0;;;21768:1;21733:15;;;:7;:15;;;;;;;;:23;;;;;;;;;;;;:37;21725:72;;;;;-1:-1:-1;;;21725:72:0;;;;;;;;;;;;-1:-1:-1;;;21725:72:0;;;;;;;;;;;;;;;21838:21;21862:32;;;;;;;;:::i;:::-;41:4:-1;34:5;30:16;25:3;21:26;14:5;7:41;87:2;83:7;78:2;73:3;69:12;65:26;61:2;54:38;21862:32:0;21838:56;;21905:12;21947:6;21955;21930:32;;;;;;-1:-1:-1;;;;;21930:32:0;-1:-1:-1;;;;;21930:32:0;;;;;;;;-1:-1:-1;;;;;21930:32:0;-1:-1:-1;;;;;21930:32:0;;;;;;;;;;;;;49:4:-1;39:7;30;26:21;22:32;13:7;6:49;21930:32:0;;;21920:43;;;;;;21905:58;;22053:4;22042:8;22036:15;22031:2;22021:8;22017:17;22014:1;22006:52;22079:47;;;-1:-1:-1;;;22079:47:0;;-1:-1:-1;;;;;22079:47:0;;;;;;;;;;;;;;;;21998:60;;-1:-1:-1;22079:31:0;;;;;;:47;;;;;-1:-1:-1;;22079:47:0;;;;;;;;-1:-1:-1;22079:31:0;:47;;;5:2:-1;;;;30:1;27;20:12;5:2;22079:47:0;;;;8:9:-1;5:2;;;45:16;42:1;39;24:38;77:16;74:1;67:27;5:2;-1:-1;;;;;;;;;22137:15:0;;;;;;;:7;:15;;;;;;;;:23;;;;;;;;;;;;:30;;;;;-1:-1:-1;;;;;;22137:30:0;;;;;;;;22178:15;;;;;;:23;;;;;;;;:30;;;;;;;;22264:8;27:10:-1;;-1:-1;23:18;;45:23;;22264:19:0;;;;;;;;;;;;;;;;;;22333:15;;22299:50;;;;;;;;;;;;;;;;;;;;;;21394:963;;;;;;;;:::o;20999:62::-;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;20999:62:0;;:::o;22365:145::-;22441:11;;-1:-1:-1;;;;;22441:11:0;22427:10;:25;22419:58;;;;;-1:-1:-1;;;22419:58:0;;;;;;;;;;;;-1:-1:-1;;;22419:58:0;;;;;;;;;;;;;;;22488:5;:14;;-1:-1:-1;;;;;;22488:14:0;-1:-1:-1;;;;;22488:14:0;;;;;;;;;;22365:145::o;20883:1807::-;;;;;;;;:::o

Swarm Source

bzzr://f96563b38a5b35120e265680d6fcc457245eefd5e9300e933f98d35ccce807fa

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.