Contract 0x1120e150da9def6fe930f4feded18ef57c0ca7ef 1

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0x6005dec2f5c8cf2f4e3c71a361dc0b212f9d3e061f8284f117c512d9949cb60dSet Fee To161094642021-09-02 0:44:1156 days 2 hrs ago0xfd63bf84471bc55dd9a83fdfa293ccbd27e1f4c8 IN  0x1120e150da9def6fe930f4feded18ef57c0ca7ef0 FTM0.00300542319
0x35ed51f5fc37ca31ff0a19d07c37eb2ed68760538f091699a9715b643156b13f0x60806040161088192021-09-02 0:33:5256 days 2 hrs ago0xfd63bf84471bc55dd9a83fdfa293ccbd27e1f4c8 IN  Contract Creation0 FTM0.270561160826
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0x37c7d13f1b3442ff452b0f697a3c4e3a89a9631b1b971e339658f749bbddd779196700872021-10-21 11:03:466 days 15 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x8d440e8db43fdc58be0ab22713f76dfa72666d87361b1dad9f4a18cceb9b1ff4196692472021-10-21 10:50:396 days 16 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x64f2efc5bd123adff860e7994acc6ceaf33012b66507f23ec7fc7fead0574617196692272021-10-21 10:50:206 days 16 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x6421bf8712d9e040454e5709a9a3267217a62797c8781db9b60e8e0e3c528c30196692052021-10-21 10:50:036 days 16 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x39178a136d52447fe339735adcc13ea93b7e4858ca22ff6be14980b70cc70933196683252021-10-21 10:36:026 days 16 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0xc3741d417ec9f054902e76e6f2208dac9000ebb3d1c68b430b71f071abcc0b2c194944092021-10-19 10:26:168 days 16 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x1df4744c06633a51c29bfc40aed8c7f9ff87452d80ccfab0eb1316e34c096499194938252021-10-19 10:13:318 days 16 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0xb4d42d71cacb1fd99fa19f56e9c44147f33c37022ecc7a53e93ecdd25565cb55191566372021-10-15 11:52:3012 days 15 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x9afedab1b4077439f0a741425f604f868fa5f5674e4e0df1e5e5a4d719812576191564682021-10-15 11:48:3112 days 15 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0xd952777a87b40a35bc8b11ba3751d1ef611af2df51c4dd2c828dd2b7a678b888191558992021-10-15 11:36:4312 days 15 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x9d775e2ca185c35239f992cc657693fd2f22e7ba9a34b485118051abece15320188999042021-10-12 8:12:5315 days 18 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x91a8acda7cf315d3e173c2962e642737d018e2b444742c8d54792c2078f297a2187469892021-10-10 11:08:2717 days 15 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x0eadb7749201b4d020f988366f2e9d2ea664464488740faa5a71d5d67bb873f4187469702021-10-10 11:08:1117 days 15 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x505652a9d099220ced3d1aab58d13aa8653a78f54ec612cf3a956c76210c879d187234942021-10-10 2:59:1817 days 23 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x20cdf0aea142c43199bfafa0235985551e895a68ec61a0a0ddf899b851cb7759187200582021-10-10 1:54:3418 days 1 hr ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x581836c46b3a0213ccdceaa4e293f4660c2a5f320ad634888ac16a9bbabf3b2d178508942021-09-28 8:17:5429 days 18 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x19058aa3fdb909593b9f762277adbb49bff1d7e0e8dcc47020f932bdc67ef3a8177670292021-09-27 2:10:0231 days 44 mins ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0xb663fc6eab10d897f38f1a10d21b8ffbfaf8175422805ac943f7edac9ce34dd4177668142021-09-27 2:05:4131 days 49 mins ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0xa985fd0fd54b5b4ccc7f16edec197ae8c72cea491f1aa62b9b122ec9ab6abba0176608512021-09-25 13:27:2732 days 13 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x6eb39224697cdae7196ac76648f5526451f7ac172e3d3d45e3e5abe31f6f39f0176259982021-09-25 0:49:5333 days 2 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x6cae79e860900404326e6afb5584227aecbf6a832273e0c3ce1ba3125c950824175539552021-09-23 19:58:4434 days 6 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x5aa53c9485a1bbb46d35367b8b45d1f840634b1c2868b296bac2c641d9ca00f9175536512021-09-23 19:49:2734 days 7 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0x11e67b901c342c2495d4e4657870727ef70a6337b90d9f533f8bcd3df17b0a57175145102021-09-22 23:55:2235 days 2 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0xf6fa707c09a48ce0a2be9e60a705549d7560747cc0218a0bbf96c5f3e8beb58a174898342021-09-22 13:25:1935 days 13 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
0xd059284d2ff37009142bf0aec6c17a2fcc4c7b833499c6e1e1962cba9281b57f174883732021-09-22 12:35:3935 days 14 hrs ago 0x1120e150da9def6fe930f4feded18ef57c0ca7ef  Contract Creation0 FTM
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Contract Source Code Verified (Similar Match)
Note: This contract matches the deployed ByteCode of the Source Code for Contract 0x69fcc260353530de3fb8d0897ae821fcc2c81f0f

Contract Name:
SoulSwapFactory

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at FtmScan.com on 2021-09-01
*/

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

// File: contracts/interfaces/ISoulSwapFactory.sol

interface ISoulSwapFactory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
    event SetFeeTo(address indexed user, address indexed _feeTo);
    event SetMigrator(address indexed user, address indexed _migrator);
    event FeeToSetter(address indexed user, address indexed feeToSetter);

    function feeTo() external view returns (address _feeTo);
    function feeToSetter() external view returns (address _fee);
    function migrator() external view returns (address _migrator);

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

    function createPair(address tokenA, address tokenB) external returns (address pair);
    function setMigrator(address) external;
    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

// File: contracts/interfaces/ISoulSwapERC20.sol

pragma solidity >=0.5.0;

interface ISoulSwapERC20 {
    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 >=0.5.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, 'SafeMath: addition overflow');

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, 'SafeMath: subtraction overflow');
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, 'SafeMath: multiplication overflow');

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, 'SafeMath: division by zero');
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, 'SafeMath: modulo by zero');
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }

    function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = x < y ? x : y;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrt(uint256 y) internal pure returns (uint256 z) {
        if (y > 3) {
            z = y;
            uint256 x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}

// File: contracts/SoulSwapERC20.sol

pragma solidity >=0.5.16;

contract SoulSwapERC20 is ISoulSwapERC20 {
    using SafeMath for uint;
    string public constant name = 'SoulSwap LP';
    string public constant symbol = 'SOUL-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, 'SoulSwap: 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, 'SoulSwap: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }
}

// File: contracts/interfaces/ISoulSwapCallee.sol

pragma solidity >=0.5.0;

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

// File: contracts/interfaces/ISoulSwapPair.sol

pragma solidity >=0.5.0;

interface ISoulSwapPair {
    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/interfaces/IERC20.sol

pragma solidity >=0.5.0;

interface IERC20 {

    // events
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed owner, address indexed spender, uint value);

    // token details
    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);

    // address details
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);
    function getOwner() external view returns (address);

    // token actions
    function approve(address spender, uint value) external returns (bool);
    function transfer(address recipient, uint value) external returns (bool);
    function transferFrom(address sender, address recipient, uint value) external returns (bool);
}

// 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/interfaces/IMigrator.sol

pragma solidity >=0.5.16;

interface IMigrator {
    // Return the desired amount of liquidity token that the migrator wants.
    function desiredLiquidity() external view returns (uint256);
}

// File: contracts/SoulSwapPair.sol

pragma solidity >=0.5.16;

contract SoulSwapPair is ISoulSwapPair, SoulSwapERC20 {
    using SafeMath for uint;
    using UQ112x112 for uint224;

    uint256 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

    uint256 public price0CumulativeLast;
    uint256 public price1CumulativeLast;
    uint256 public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event

    uint256 private unlocked = 1;
    modifier lock() {
        require(unlocked == 1, "SoulSwap: 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,
        uint256 value
    ) private {
        (bool success, bytes memory data) =
            token.call(abi.encodeWithSelector(SELECTOR, to, value));
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "SoulSwap: TRANSFER_FAILED"
        );
    }

    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);

    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, "SoulSwap: FORBIDDEN"); // sufficient check
        token0 = _token0;
        token1 = _token1;
    }

    // update reserves and, on the first call per block, price accumulators
    function _update(
        uint256 balance0,
        uint256 balance1,
        uint112 _reserve0,
        uint112 _reserve1
    ) private {
        require(
            balance0 <= uint112(-1) && balance1 <= uint112(-1),
            "SoulSwap: 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 +=
                uint256(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) *
                timeElapsed;
            price1CumulativeLast +=
                uint256(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 = ISoulSwapFactory(factory).feeTo();
        feeOn = feeTo != address(0);
        uint256 _kLast = kLast; // gas savings
        if (feeOn) {
            if (_kLast != 0) {
                uint256 rootK = SafeMath.sqrt(uint256(_reserve0).mul(_reserve1));
                uint256 rootKLast = SafeMath.sqrt(_kLast);
                if (rootK > rootKLast) {
                    uint256 numerator = totalSupply.mul(rootK.sub(rootKLast));
                    uint256 denominator = rootK.mul(3).add(rootKLast);
                    uint256 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 (uint256 liquidity) {
        (uint112 _reserve0, uint112 _reserve1, ) = getReserves(); // gas savings
        uint256 balance0 = IERC20(token0).balanceOf(address(this));
        uint256 balance1 = IERC20(token1).balanceOf(address(this));
        uint256 amount0 = balance0.sub(_reserve0);
        uint256 amount1 = balance1.sub(_reserve1);

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint256 _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        if (_totalSupply == 0) {
            liquidity = SafeMath.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
            _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
        } else {
            liquidity = SafeMath.min(
                amount0.mul(_totalSupply) / _reserve0,
                amount1.mul(_totalSupply) / _reserve1
            );
        }
        require(liquidity > 0, "SoulSwap: INSUFFICIENT_LIQUIDITY_MINTED");
        _mint(to, liquidity);

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint256(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 (uint256 amount0, uint256 amount1) {
        require(totalSupply != 0, "The value of totalSupply must not be 0");
        (uint112 _reserve0, uint112 _reserve1, ) = getReserves(); // gas savings
        address _token0 = token0; // gas savings
        address _token1 = token1; // gas savings
        uint256 balance0 = IERC20(_token0).balanceOf(address(this));
        uint256 balance1 = IERC20(_token1).balanceOf(address(this));
        uint256 liquidity = balanceOf[address(this)];

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint256 _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,
            "SoulSwap: 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 = uint256(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(
        uint256 amount0Out,
        uint256 amount1Out,
        address to,
        bytes calldata data
    ) external lock {
        require(
            amount0Out > 0 || amount1Out > 0,
            "SoulSwap: INSUFFICIENT_OUTPUT_AMOUNT"
        );
        (uint112 _reserve0, uint112 _reserve1, ) = getReserves(); // gas savings
        require(
            amount0Out < _reserve0 && amount1Out < _reserve1,
            "SoulSwap: INSUFFICIENT_LIQUIDITY"
        );

        uint256 balance0;
        uint256 balance1;
        {
            // scope for _token{0,1}, avoids stack too deep errors
            address _token0 = token0;
            address _token1 = token1;
            require(to != _token0 && to != _token1, "SoulSwap: 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)
                ISoulSwapCallee(to).soulswapCall(
                    msg.sender,
                    amount0Out,
                    amount1Out,
                    data
                );
            balance0 = IERC20(_token0).balanceOf(address(this));
            balance1 = IERC20(_token1).balanceOf(address(this));
        }
        uint256 amount0In =
            balance0 > _reserve0 - amount0Out
                ? balance0 - (_reserve0 - amount0Out)
                : 0;
        uint256 amount1In =
            balance1 > _reserve1 - amount1Out
                ? balance1 - (_reserve1 - amount1Out)
                : 0;
        require(
            amount0In > 0 || amount1In > 0,
            "SoulSwap: INSUFFICIENT_INPUT_AMOUNT"
        );
        {
            // scope for reserve{0,1}Adjusted, avoids stack too deep errors
            uint256 balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(2));
            uint256 balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(2));
            require(
                balance0Adjusted.mul(balance1Adjusted) >=
                    uint256(_reserve0).mul(_reserve1).mul(1000**2),
                "SoulSwap: 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/SoulSwapFactory.sol

pragma solidity >=0.5.16;

contract SoulSwapFactory is ISoulSwapFactory {
    bytes32 public constant INIT_CODE_PAIR_HASH = keccak256(abi.encodePacked(type(SoulSwapPair).creationCode));

    address public feeTo;
    address public feeToSetter = msg.sender;
    address public migrator;
    uint256 public totalPairs = 0;
    address[] public allPairs;

    mapping(address => mapping(address => address)) public getPair;

    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
    event SetFeeTo(address indexed user, address indexed feeTo);
    event SetMigrator(address indexed user, address indexed migrator);
    event FeeToSetter(address indexed user, address indexed feeToSetter);

    function createPair(address tokenA, address tokenB) external returns (address pair) {
        require(tokenA != tokenB, 'SoulSwap: IDENTICAL_ADDRESSES');
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'SoulSwap: ZERO_ADDRESS');
        require(getPair[token0][token1] == address(0), 'SoulSwap: PAIR_EXISTS'); // single check is sufficient

        bytes memory bytecode = type(SoulSwapPair).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
        
        assembly { pair := create2(0, add(bytecode, 32), mload(bytecode), salt) }
        SoulSwapPair(pair).initialize(token0, token1);
        getPair[token0][token1] = pair;
        getPair[token1][token0] = pair; // populate mapping in the reverse direction
        allPairs.push(pair);
        totalPairs++;
        
        emit PairCreated(token0, token1, pair, totalPairs);
    }

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

    function setMigrator(address _migrator) external {
        require(msg.sender == feeToSetter, 'SoulSwap: FORBIDDEN');
        migrator = _migrator;
        
        emit SetMigrator(msg.sender, migrator);
    }

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

}

Contract Security Audit

Contract ABI

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Swarm Source

bzzr://9fa8be9b236e9c91fc3a2e0c8b09633b20179859b8f3b945b1186d9eb90f44d2
Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Validator ID :
0 FTM

Amount Staked
0

Amount Delegated
0

Staking Total
0

Staking Start Epoch
0

Staking Start Time
0

Proof of Importance
0

Origination Score
0

Validation Score
0

Active
0

Online
0

Downtime
0 s
Address Amount claimed Rewards Created On Epoch Created On
Block Uncle Number Difficulty Gas Used Reward
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