Contract 0xb7926c0430afb07aa7defde6da862ae0bde767bc

Txn Hash Method
Block
From
To
Value [Txn Fee]
0x560d73e6269a3735a7a8c69f1b6bb50773dc8fc821ec593235fbd2ab433d9d0bCreate Pair125966612021-09-22 20:17:595 hrs 38 mins ago0x300cc8ba0725025454baa11cd9a4c2f5df8a332a IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0xede90e2fb47d5a73c8f976f0b46f06739c7eb41b401cef546dd49f8b55c27283Create Pair125864132021-09-22 11:45:2314 hrs 10 mins ago0x257a4b700561fe8c0dd5dd82b3fa9f6e6bfff741 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0x58f138824ca0557fd915f8911a416b06f826a7fb2179a5c8c9bbbf3c84566b92Create Pair125864122021-09-22 11:45:2014 hrs 10 mins ago0x257a4b700561fe8c0dd5dd82b3fa9f6e6bfff741 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0x4be2b7af387b4e53a2a00f768e8d39eb04622778a690c703f4c3d8f35c799445Create Pair125787072021-09-22 5:20:0520 hrs 36 mins ago0x09db817d9d504e84b1dff6799077ab3ede8b4603 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462926
0xe1e2aa2d3212515acc5d269614a9caf6e25fd66ca063b6b8d0fc17896492788cCreate Pair125118662021-09-19 21:36:283 days 4 hrs ago0x257a4b700561fe8c0dd5dd82b3fa9f6e6bfff741 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231463
0x55775cc45568e1703e34c0b4a51ef1973a87a5572db1fe0b571c08a7d4ed35c7Create Pair125118652021-09-19 21:36:253 days 4 hrs ago0x257a4b700561fe8c0dd5dd82b3fa9f6e6bfff741 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231451
0x728049e9d000cce1261b0c909b2db87ab3dfad2e8173f2ab830f7be7ff5fceb0Create Pair125110882021-09-19 20:57:343 days 4 hrs ago0x257a4b700561fe8c0dd5dd82b3fa9f6e6bfff741 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231463
0x63048fac9fd36fdcddc6573270fddf8d9abdabe6c1d8a6196eb27b401d66ca8fCreate Pair125110872021-09-19 20:57:313 days 4 hrs ago0x257a4b700561fe8c0dd5dd82b3fa9f6e6bfff741 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231451
0x1f4569730cbc8cdfd4f05bcaeb73f9c671480470282a08abda8653c0a3243d69Create Pair124710742021-09-18 10:40:594 days 15 hrs ago0x1c03c66c63a69ee5d5228fafa0744680f582bebb IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.0002341
0x1e19f175997c41d4797f342ce9e760496c898e21a84adf78668bc481b43f6a2aCreate Pair124647332021-09-18 5:23:564 days 20 hrs ago0x1c03c66c63a69ee5d5228fafa0744680f582bebb IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231463
0xa10f3cdaf62eb137ec585fe9dc66eecb5f79060df66b2070cb0283da5afc7ae7Create Pair124465262021-09-17 14:11:445 days 11 hrs ago0x8fa1662fc4f6f69a64ede9a0b86facaf44b8641d IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462926
0x624e6a16e4c79d7aec9310854e7433938acbd43911bd3a935b79be66f04fb179Create Pair124464312021-09-17 14:06:595 days 11 hrs ago0x8fa1662fc4f6f69a64ede9a0b86facaf44b8641d IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462926
0x3689220173df173572fa6581cbdb3926b7c27c7b728ccb149765a51fc194d333Create Pair124443042021-09-17 12:20:385 days 13 hrs ago0xb49343eacec8eb98e6eaf44e3d309599d6180455 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0xf4d34d43c9747e1b12608cbad557ff61eaa19054bf8ed0bc440681e4635e93f7Create Pair124442712021-09-17 12:18:595 days 13 hrs ago0xb49343eacec8eb98e6eaf44e3d309599d6180455 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231463
0xdcfdfd174d23853399c29b593ba9a30acfaec76f77b95834cc5f4805147178e1Create Pair124435632021-09-17 11:43:355 days 14 hrs ago0xb49343eacec8eb98e6eaf44e3d309599d6180455 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0x49f5500095a91f162397216c85e7802b2409e6e0eb90fe85523a59185f22a680Create Pair124434882021-09-17 11:39:505 days 14 hrs ago0xb49343eacec8eb98e6eaf44e3d309599d6180455 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0xa84a30f958d035fe4ef8ea7a8b2b7d5fb5e865f4615b75695054072432f9573aCreate Pair124417552021-09-17 10:13:105 days 15 hrs ago0x49ae5637252fd7d716484e6d9488596322653d80 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0x803b5eb9ada1493399fcfa43bc259b5babe5e4ccc1aa565a59a4b6d4e562bf2aCreate Pair124394962021-09-17 8:20:135 days 17 hrs ago0x09db817d9d504e84b1dff6799077ab3ede8b4603 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462922
0xcc9ba70abd1f87140be517e9856c3a2c88cf7034f4fed0e6d0bd2656280d1dafCreate Pair124392432021-09-17 8:07:345 days 17 hrs ago0x09db817d9d504e84b1dff6799077ab3ede8b4603 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462926
0x7632a6011852d2b538b1aeae448a7a33dcc7f9a0b726a6f7141972ed9189c75eCreate Pair124388712021-09-17 7:48:585 days 18 hrs ago0x8fa1662fc4f6f69a64ede9a0b86facaf44b8641d IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462926
0xf79ba438a536c08fb40209b4111af01237dd05c7236ec478c4b4072d8fa389e0Create Pair124385312021-09-17 7:31:585 days 18 hrs ago0x8fa1662fc4f6f69a64ede9a0b86facaf44b8641d IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462926
0x9aae448207e25298cbebb437962ece0a6a6c4ef59c3b1ba02832aef7525d2226Create Pair124384162021-09-17 7:26:135 days 18 hrs ago0x2798d52306aafadb4b51ebc6bbe63554e29f6951 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.06462926
0x093b6f1c661d678c4011e3e06828f2cccb2ddbbcf46aa027e157f1677091f709Create Pair124366232021-09-17 5:56:345 days 19 hrs ago0xcc57c2d6f21c2998cdf7da9a3c0e65c68bf7cc02 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0x840bf188d9d755976809af8d9051bc6cdabe263f0f828912b03fe454131a29beCreate Pair124343442021-09-17 4:02:375 days 21 hrs ago0x1bab8030249382a887f967fcaa7fe0be7b390728 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231473
0xadc38c6e420578de2c23a19031cf38c26f8ba28dfc8c40ae7fcce3911e27e603Create Pair124241792021-09-16 19:03:536 days 6 hrs ago0x49ae5637252fd7d716484e6d9488596322653d80 IN  0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB0.03231463
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Latest 25 internal transaction
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0x0aef35cfd24dff36da6c102a51de3269a548ad226c3d668ecaab5da5dc68a964126031402021-09-23 1:41:5614 mins ago 0x8209809f1ab1675661dd4e805a4cab29580c8746 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x0aef35cfd24dff36da6c102a51de3269a548ad226c3d668ecaab5da5dc68a964126031402021-09-23 1:41:5614 mins ago 0x9ac64cc6e4415144c455bd8e4837fea55603e5c3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x8062ae74ff2ab01b7baace96c6040adc07ec3048dee6b89dcb44e7ccbfa75e9d126029422021-09-23 1:32:0224 mins ago 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0xbbe4eb5413b5589699d2a3f2b8283e2d000dd80099e7f28885256ef92d22e773126029372021-09-23 1:31:4724 mins ago 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0xbbe4eb5413b5589699d2a3f2b8283e2d000dd80099e7f28885256ef92d22e773126029372021-09-23 1:31:4724 mins ago 0x9ac64cc6e4415144c455bd8e4837fea55603e5c3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0xfaf6c2ecfb0db5325f4deae654b4c3976354ae0716abb76a05243a9083d59d4b126029272021-09-23 1:31:1724 mins ago 0xb7926c0430afb07aa7defde6da862ae0bde767bc 0xf9cf47ff3d2f625ca404da6cb0ef1cfb661a70f70 BNB
0xfaf6c2ecfb0db5325f4deae654b4c3976354ae0716abb76a05243a9083d59d4b126029272021-09-23 1:31:1724 mins ago 0xb7926c0430afb07aa7defde6da862ae0bde767bc  Contract Creation0 BNB
0xfaf6c2ecfb0db5325f4deae654b4c3976354ae0716abb76a05243a9083d59d4b126029272021-09-23 1:31:1724 mins ago 0xe05a8438787e64da54a162fc1017a681f50404ac 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0xd7f7eecbd14b6b125510f0434f68b5081f32004552b17031a0173f947c5ea9fe126028752021-09-23 1:28:4127 mins ago 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0xd7f7eecbd14b6b125510f0434f68b5081f32004552b17031a0173f947c5ea9fe126028752021-09-23 1:28:4127 mins ago 0x9ac64cc6e4415144c455bd8e4837fea55603e5c3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x6740e3f944deb4ac3f6acf0d85d0a3496dff5c1df3f12d2aa41d4769dc55c95b126028462021-09-23 1:27:1428 mins ago 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x6740e3f944deb4ac3f6acf0d85d0a3496dff5c1df3f12d2aa41d4769dc55c95b126028462021-09-23 1:27:1428 mins ago 0x9ac64cc6e4415144c455bd8e4837fea55603e5c3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x01e2f79e021f2f46ee10efcd55b04af9e47d27ef92ec10c78a2d2b777c7c1a59126027982021-09-23 1:24:5031 mins ago 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x01e2f79e021f2f46ee10efcd55b04af9e47d27ef92ec10c78a2d2b777c7c1a59126027982021-09-23 1:24:5031 mins ago 0x9ac64cc6e4415144c455bd8e4837fea55603e5c3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x7274a191110d3a98d8de29fe2c4d669b1ecf253c1bfc303485e317035cdb065f126027952021-09-23 1:24:4131 mins ago 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x7274a191110d3a98d8de29fe2c4d669b1ecf253c1bfc303485e317035cdb065f126027952021-09-23 1:24:4131 mins ago 0x9ac64cc6e4415144c455bd8e4837fea55603e5c3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x459c1618bafa5d72b18397646e5a28940f212d5db43a3e07f2bc89a3015971b0126027672021-09-23 1:23:1732 mins ago 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x459c1618bafa5d72b18397646e5a28940f212d5db43a3e07f2bc89a3015971b0126027672021-09-23 1:23:1732 mins ago 0x9ac64cc6e4415144c455bd8e4837fea55603e5c3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x4450a4b8ae398e83290f27ce66a1d0584314e91b0624f8ca459fec0264880b33126027362021-09-23 1:21:4434 mins ago 0x5e53994da157dcf5a6683bf3dfa1d55137426bc3 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x9f5dd21da328114077a638a0ad4f57e7a12f26bbd0c61729b6ae6ec68c6cc6ae126026942021-09-23 1:19:3836 mins ago 0xb7926c0430afb07aa7defde6da862ae0bde767bc 0xa12772ecca3b06c456b00f0f44a7b6bafd63d19e0 BNB
0x9f5dd21da328114077a638a0ad4f57e7a12f26bbd0c61729b6ae6ec68c6cc6ae126026942021-09-23 1:19:3836 mins ago 0xb7926c0430afb07aa7defde6da862ae0bde767bc  Contract Creation0 BNB
0x9f5dd21da328114077a638a0ad4f57e7a12f26bbd0c61729b6ae6ec68c6cc6ae126026942021-09-23 1:19:3836 mins ago 0x3511ef7931f1ed3588e6aa16bb72a9120adbfdeb 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x1b510d9d73ba6b286d0c4de9192827005dd34ab52874abac5a824ae7d56b81ac126023172021-09-23 1:00:4755 mins ago 0x9253307817b2adc80a6f41e4fc61b55704e85d34 0xb7926c0430afb07aa7defde6da862ae0bde767bc0 BNB
0x2ce5b5e468add5de8c7fe2f0ed067d96e949d541a3ded0edff4bb0f00a5f4600126023152021-09-23 1:00:4155 mins ago 0xb7926c0430afb07aa7defde6da862ae0bde767bc 0xc19dd5e924ff49024d3d17f30ec22d1f6ffe245f0 BNB
0x2ce5b5e468add5de8c7fe2f0ed067d96e949d541a3ded0edff4bb0f00a5f4600126023152021-09-23 1:00:4155 mins ago 0xb7926c0430afb07aa7defde6da862ae0bde767bc  Contract Creation0 BNB
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Contract Source Code Verified (Exact Match)

Contract Name:
PancakeFactory

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity)

/**
 *Submitted for verification at BscScan.com on 2021-03-16
*/

pragma solidity =0.5.16;


interface IPancakeFactory {
    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;
}

interface IPancakePair {
    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;
}

interface IPancakeERC20 {
    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;
}

// 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');
    }
}

contract PancakeERC20 is IPancakeERC20 {
    using SafeMath for uint;

    string public constant name = 'Pancake LPs';
    string public constant symbol = 'Cake-LP';
    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, 'Pancake: 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, 'Pancake: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }
}

// 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;
        }
    }
}

// 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);
    }
}

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);
}

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

contract PancakePair is IPancakePair, PancakeERC20 {
    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, 'Pancake: 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))), 'Pancake: 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, 'Pancake: 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), 'Pancake: 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 = IPancakeFactory(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(3).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, 'Pancake: 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, 'Pancake: 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, 'Pancake: INSUFFICIENT_OUTPUT_AMOUNT');
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'Pancake: 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, 'Pancake: 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) IPancakeCallee(to).pancakeCall(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, 'Pancake: INSUFFICIENT_INPUT_AMOUNT');
        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
        uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(2));
        uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(2));
        require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'Pancake: 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);
    }
}

contract PancakeFactory is IPancakeFactory {
    bytes32 public constant INIT_CODE_PAIR_HASH = keccak256(abi.encodePacked(type(PancakePair).creationCode));

    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, 'Pancake: IDENTICAL_ADDRESSES');
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'Pancake: ZERO_ADDRESS');
        require(getPair[token0][token1] == address(0), 'Pancake: PAIR_EXISTS'); // single check is sufficient
        bytes memory bytecode = type(PancakePair).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
        assembly {
            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }
        IPancakePair(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, 'Pancake: FORBIDDEN');
        feeTo = _feeTo;
    }

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

Contract ABI

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

000000000000000000000000352a7a5277ec7619500b06fa051974621c1acd12

-----Decoded View---------------
Arg [0] : _feeToSetter (address): 0x352a7a5277ec7619500b06fa051974621c1acd12

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000352a7a5277ec7619500b06fa051974621c1acd12


Deployed ByteCode Sourcemap

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Swarm Source

bzzr://22457ecc13d5f388ea86d73f9522a1ce6b2aaec9c474d954591fc2bc97ca9100
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
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