Contract 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 11

 
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0x81168f43045606115eaa574ee7bd43f2156fba72d200291fb5d64d4f43ecd909Approve1178398832024-03-24 11:09:034 days 4 hrs ago0x22c90bc05ac3275109a3d2b1990491a667930aa2 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000002254520.0071016
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0x8d39be8f41a7f7aa5e65d4aa40d91c04596795a1107d262bb3940963614b8cabApprove1174478722024-03-15 9:22:0113 days 5 hrs ago0xf309be11c83afb161295481d312139ea277d91a2 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000013167850.040226219
0x94124c51d189d6c52594488a81e007cef3d109d639eb0a8d118e584a3c8cfb58Approve1174478702024-03-15 9:21:5713 days 5 hrs ago0xf309be11c83afb161295481d312139ea277d91a2 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000013202140.040367513
0xa980677d9b89961a02a7c826bb01901fa9dccdbd26ae75fd51ff4f651014c3bfApprove1166151172024-02-25 2:43:3132 days 12 hrs ago0xf4f4660f8bda5be8e3128f98d2d8b95e3f20f813 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000445315250.003445205
0x2aae308e9c43230f942354fbc497007658c95b9d948281f77444feb23cbf251dApprove1164928672024-02-22 6:48:3135 days 8 hrs ago0x2f4416123b2f47ac5979317193e9b40c94e82b87 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000576879260.004294088
0x06877a831b26c6e6f1d561976793ba0651071a0631dd8464a5708efcdd6b8056Approve1164928612024-02-22 6:48:1935 days 8 hrs ago0x2f4416123b2f47ac5979317193e9b40c94e82b87 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000525586320.004177235
0xb2fdbf57afe057e9548c226cf2c36057eeadf33ab6e93d48ec1a7ffd42a339efApprove1162792072024-02-17 8:06:3140 days 7 hrs ago0xa8cde948009b545ec5d26822bf6d3152ba9a32b0 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000275224460.006533055
0x95517af8d30a5ed6872fbb857cf61db094dc9538de722877338c8da45ed383beApprove1162791152024-02-17 8:03:2740 days 7 hrs ago0xa8cde948009b545ec5d26822bf6d3152ba9a32b0 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000306172940.006589449
0xe3da7867d9b1247337fab3db7bbba27c9aed66eb733265a67b9743f7a0e34ad4Approve1156566702024-02-02 22:15:1754 days 16 hrs ago0xe81f49ee584132e01011f898b352e6993d954dd5 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000295028950.005789309
0xc1696f10c1a8486cdcc6864b671ea825823d6dcf3650b30c939c2447de75fb30Approve1154334642024-01-28 18:15:0559 days 20 hrs ago0x5f367bf126fda56d88ba88a8978d5496c66b3569 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000210998470.004145757
0xce98a91b2afb061ba0788350318c1019b5099fc9b27bd4a2340eed4feca4376bApprove1153576952024-01-27 0:09:2761 days 15 hrs ago0x992c5ac5b1851c6f16ccdef34f5dbd25ce55af15 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000182164240.007291042
0x6a1175b73f8854e9a7b42b7efb2dc0b4437030b15229de4e56d08221992de130Approve1151694082024-01-22 15:33:1365 days 23 hrs ago0xe0ae8c3d3081d77849f7f9e4b96ee3b5ea478825 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000467663960.013047349
0xd23d775555cf67371a083d39a5c44bc444b1750d6db5f4d9265eb2b78d125e96Approve1150825012024-01-20 15:16:1967 days 23 hrs ago0x992c5ac5b1851c6f16ccdef34f5dbd25ce55af15 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000291483740.006235634
0x954bfb1be1385039d846dfeb535b84ffde3f30ed8e7290d136f0bff23c4b0f2dApprove1149948342024-01-18 14:34:0570 days 36 mins ago0x8a2dbcae7eb8ba0cd2e1ab1fa59b3cc472846e55 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000668156780.004133359
0x9ef36f783fcd1bbb69e604f02394f1748f6e44bd1cd4700ea57993bcbca5ab1aApprove1149946242024-01-18 14:27:0570 days 43 mins ago0x8a2dbcae7eb8ba0cd2e1ab1fa59b3cc472846e55 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000557751880.003860751
0xdb35cef338182d2d4260ea54de40f68b430b94aa6458a35a24438038a6ce3e6bApprove1149769892024-01-18 4:39:1570 days 10 hrs ago0x044da36e39b954546e4b728dc33f96617a40c4a2 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000428077290.004257105
0x11bb0435b5013f669b62d0ff0e92ff872eabec151e4599abb061443b8e1cf7ecApprove1144333942024-01-05 14:39:2583 days 31 mins ago0xbaa62a06de24dbe201f282f38022994bb2c1967d IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000555391920.007074466
0xbf69ffad099a6e24f415af5ae3de274482c29eefb024f070d80327309a2ad6e3Claim Fees1141310822023-12-29 14:42:2190 days 28 mins ago0x43fc49753730e7ee5d9f5d39ddc1ac0a2d21ae8b IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000400420430.003687593
0x0248766383ca4b1ba303c15e53d9293b1727a49a65ab72fa886887b35161ac0fApprove1128380682023-11-29 16:21:53119 days 22 hrs ago0x5c70b3f22595caf8314f77dabc628363aaee18ad IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000708337380.014289966
0x2c3becdd654f71eeb5238ff93eef91c917fe9f79166e1e52a01ff4fa78d8ed7dApprove1128253802023-11-29 9:18:57120 days 5 hrs ago0x4009b328599d15326a343010b2cc9038343c662d IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000506229310.0094208
0x02e137bd8df890247d83647f853aab9b37fae14aa7f318af9c41175a14db1d7eApprove1125656452023-11-23 9:01:07126 days 6 hrs ago0x13abf9062237ec43ebd596fb2f475c418fc2b4b7 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.00004815170.010125818
0x9aeae38f1011d8cb93f69f793961c6076b1859bd3375c558b989368507e3a9f1Approve1123775452023-11-19 0:31:07130 days 14 hrs ago0x4009b328599d15326a343010b2cc9038343c662d IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.000027131710.0124639
0x8df4ab1002814e522c99b43de2d4119fb6cd7910a531c0510562f2344ed53849Approve1121043792023-11-12 16:45:35136 days 22 hrs ago0x9c57027b1eca93093a6f446422c59c85a5a3fa52 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000489005690.0124798
0x6c9f67a11d3bc6cd5d8b79297b6b988d295a5071c462e4e6bdb726dcd396b3dcApprove1117336652023-11-04 2:48:27145 days 12 hrs ago0x4a1c769e372b91952c32b1e55a8904b668eba9f9 IN  0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH0.0000228690260.009173239
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0xa43995dc0a4aac5da37a0043ddfafc358e338bd5f04c8317d95c4d5db32aaa9a1075577492023-07-30 10:51:15242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xa43995dc0a4aac5da37a0043ddfafc358e338bd5f04c8317d95c4d5db32aaa9a1075577492023-07-30 10:51:15242 days 4 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0xa43995dc0a4aac5da37a0043ddfafc358e338bd5f04c8317d95c4d5db32aaa9a1075577492023-07-30 10:51:15242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xa43995dc0a4aac5da37a0043ddfafc358e338bd5f04c8317d95c4d5db32aaa9a1075577492023-07-30 10:51:15242 days 4 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0xa43995dc0a4aac5da37a0043ddfafc358e338bd5f04c8317d95c4d5db32aaa9a1075577492023-07-30 10:51:15242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xa43995dc0a4aac5da37a0043ddfafc358e338bd5f04c8317d95c4d5db32aaa9a1075577492023-07-30 10:51:15242 days 4 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0x0d808e5f66255ae93ee2b62fb175b4b8e2958b1b9ac1dcf29afcdb35aaa39d0b1075577312023-07-30 10:50:39242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0x0d808e5f66255ae93ee2b62fb175b4b8e2958b1b9ac1dcf29afcdb35aaa39d0b1075577312023-07-30 10:50:39242 days 4 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0xdfa46478f9e5ea86d57387849598dbfb2e964b020 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0x7f5c764cbc14f9669b88837ca1490cca17c316070 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0x7f5c764cbc14f9669b88837ca1490cca17c316070 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0xdfa46478f9e5ea86d57387849598dbfb2e964b020 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0x7f5c764cbc14f9669b88837ca1490cca17c316070 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0x29062d803d8586fde18d37b4a5fa1bbf1b207c350 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0xdfa46478f9e5ea86d57387849598dbfb2e964b020 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x29062d803d8586fde18d37b4a5fa1bbf1b207c35 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d Velodrome Finance: Pair Factory0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0xed4da4d3b90cb359d0216c0016ac6d9241d817c3 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d0 ETH
0xc3d8d57bbc76fdafb937e021535089113ea0a910dac49ff2f4ad53355f5e62e51075576862023-07-30 10:49:09242 days 4 hrs ago 0x0b5581d5db524eaf0006a0bafd1e8d206c70cc0d 0xdfa46478f9e5ea86d57387849598dbfb2e964b020 ETH
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x335bd4ffa921160fc86ce3843f80a9941e7456c6
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
Pair

Compiler Version
v0.8.13+commit.abaa5c0e

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 8 : Pair.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import 'contracts/libraries/Math.sol';
import 'contracts/interfaces/IERC20.sol';
import 'contracts/interfaces/IPair.sol';
import 'contracts/interfaces/IPairCallee.sol';
import 'contracts/factories/PairFactory.sol';
import 'contracts/PairFees.sol';

// The base pair of pools, either stable or volatile
contract Pair is IPair {

    string public name;
    string public symbol;
    uint8 public constant decimals = 18;

    // Used to denote stable or volatile pair, not immutable since construction happens in the initialize method for CREATE2 deterministic addresses
    bool public immutable stable;

    uint public totalSupply = 0;

    mapping(address => mapping (address => uint)) public allowance;
    mapping(address => uint) public balanceOf;

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

    uint internal constant MINIMUM_LIQUIDITY = 10**3;

    address public immutable token0;
    address public immutable token1;
    address public immutable fees;
    address immutable factory;

    // Structure to capture time period obervations every 30 minutes, used for local oracles
    struct Observation {
        uint timestamp;
        uint reserve0Cumulative;
        uint reserve1Cumulative;
    }

    // Capture oracle reading every 30 minutes
    uint constant periodSize = 1800;

    Observation[] public observations;

    uint internal immutable decimals0;
    uint internal immutable decimals1;

    uint public reserve0;
    uint public reserve1;
    uint public blockTimestampLast;

    uint public reserve0CumulativeLast;
    uint public reserve1CumulativeLast;

    // index0 and index1 are used to accumulate fees, this is split out from normal trades to keep the swap "clean"
    // this further allows LP holders to easily claim fees for tokens they have/staked
    uint public index0 = 0;
    uint public index1 = 0;

    // position assigned to each LP to track their current index0 & index1 vs the global position
    mapping(address => uint) public supplyIndex0;
    mapping(address => uint) public supplyIndex1;

    // tracks the amount of unclaimed, but claimable tokens off of fees for token0 and token1
    mapping(address => uint) public claimable0;
    mapping(address => uint) public claimable1;

    event Fees(address indexed sender, uint amount0, uint amount1);
    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(uint reserve0, uint reserve1);
    event Claim(address indexed sender, address indexed recipient, uint amount0, uint amount1);

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

    constructor() {
        factory = msg.sender;
        (address _token0, address _token1, bool _stable) = PairFactory(msg.sender).getInitializable();
        (token0, token1, stable) = (_token0, _token1, _stable);
        fees = address(new PairFees(_token0, _token1));
        if (_stable) {
            name = string(abi.encodePacked("StableV1 AMM - ", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
            symbol = string(abi.encodePacked("sAMM-", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
        } else {
            name = string(abi.encodePacked("VolatileV1 AMM - ", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
            symbol = string(abi.encodePacked("vAMM-", IERC20(_token0).symbol(), "/", IERC20(_token1).symbol()));
        }

        decimals0 = 10**IERC20(_token0).decimals();
        decimals1 = 10**IERC20(_token1).decimals();

        observations.push(Observation(block.timestamp, 0, 0));
    }

    // simple re-entrancy check
    uint internal _unlocked = 1;
    modifier lock() {
        require(_unlocked == 1);
        _unlocked = 2;
        _;
        _unlocked = 1;
    }

    function observationLength() external view returns (uint) {
        return observations.length;
    }

    function lastObservation() public view returns (Observation memory) {
        return observations[observations.length-1];
    }

    function metadata() external view returns (uint dec0, uint dec1, uint r0, uint r1, bool st, address t0, address t1) {
        return (decimals0, decimals1, reserve0, reserve1, stable, token0, token1);
    }

    function tokens() external view returns (address, address) {
        return (token0, token1);
    }

    // claim accumulated but unclaimed fees (viewable via claimable0 and claimable1)
    function claimFees() external returns (uint claimed0, uint claimed1) {
        _updateFor(msg.sender);

        claimed0 = claimable0[msg.sender];
        claimed1 = claimable1[msg.sender];

        if (claimed0 > 0 || claimed1 > 0) {
            claimable0[msg.sender] = 0;
            claimable1[msg.sender] = 0;

            PairFees(fees).claimFeesFor(msg.sender, claimed0, claimed1);

            emit Claim(msg.sender, msg.sender, claimed0, claimed1);
        }
    }

    // Accrue fees on token0
    function _update0(uint amount) internal {
        _safeTransfer(token0, fees, amount); // transfer the fees out to PairFees
        uint256 _ratio = amount * 1e18 / totalSupply; // 1e18 adjustment is removed during claim
        if (_ratio > 0) {
            index0 += _ratio;
        }
        emit Fees(msg.sender, amount, 0);
    }

    // Accrue fees on token1
    function _update1(uint amount) internal {
        _safeTransfer(token1, fees, amount);
        uint256 _ratio = amount * 1e18 / totalSupply;
        if (_ratio > 0) {
            index1 += _ratio;
        }
        emit Fees(msg.sender, 0, amount);
    }

    // this function MUST be called on any balance changes, otherwise can be used to infinitely claim fees
    // Fees are segregated from core funds, so fees can never put liquidity at risk
    function _updateFor(address recipient) internal {
        uint _supplied = balanceOf[recipient]; // get LP balance of `recipient`
        if (_supplied > 0) {
            uint _supplyIndex0 = supplyIndex0[recipient]; // get last adjusted index0 for recipient
            uint _supplyIndex1 = supplyIndex1[recipient];
            uint _index0 = index0; // get global index0 for accumulated fees
            uint _index1 = index1;
            supplyIndex0[recipient] = _index0; // update user current position to global position
            supplyIndex1[recipient] = _index1;
            uint _delta0 = _index0 - _supplyIndex0; // see if there is any difference that need to be accrued
            uint _delta1 = _index1 - _supplyIndex1;
            if (_delta0 > 0) {
                uint _share = _supplied * _delta0 / 1e18; // add accrued difference for each supplied token
                claimable0[recipient] += _share;
            }
            if (_delta1 > 0) {
                uint _share = _supplied * _delta1 / 1e18;
                claimable1[recipient] += _share;
            }
        } else {
            supplyIndex0[recipient] = index0; // new users are set to the default global state
            supplyIndex1[recipient] = index1;
        }
    }

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

    // update reserves and, on the first call per block, price accumulators
    function _update(uint balance0, uint balance1, uint _reserve0, uint _reserve1) internal {
        uint blockTimestamp = block.timestamp;
        uint timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
        if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
            reserve0CumulativeLast += _reserve0 * timeElapsed;
            reserve1CumulativeLast += _reserve1 * timeElapsed;
        }

        Observation memory _point = lastObservation();
        timeElapsed = blockTimestamp - _point.timestamp; // compare the last observation with current timestamp, if greater than 30 minutes, record a new event
        if (timeElapsed > periodSize) {
            observations.push(Observation(blockTimestamp, reserve0CumulativeLast, reserve1CumulativeLast));
        }
        reserve0 = balance0;
        reserve1 = balance1;
        blockTimestampLast = blockTimestamp;
        emit Sync(reserve0, reserve1);
    }

    // produces the cumulative price using counterfactuals to save gas and avoid a call to sync.
    function currentCumulativePrices() public view returns (uint reserve0Cumulative, uint reserve1Cumulative, uint blockTimestamp) {
        blockTimestamp = block.timestamp;
        reserve0Cumulative = reserve0CumulativeLast;
        reserve1Cumulative = reserve1CumulativeLast;

        // if time has elapsed since the last update on the pair, mock the accumulated price values
        (uint _reserve0, uint _reserve1, uint _blockTimestampLast) = getReserves();
        if (_blockTimestampLast != blockTimestamp) {
            // subtraction overflow is desired
            uint timeElapsed = blockTimestamp - _blockTimestampLast;
            reserve0Cumulative += _reserve0 * timeElapsed;
            reserve1Cumulative += _reserve1 * timeElapsed;
        }
    }

    // gives the current twap price measured from amountIn * tokenIn gives amountOut
    function current(address tokenIn, uint amountIn) external view returns (uint amountOut) {
        Observation memory _observation = lastObservation();
        (uint reserve0Cumulative, uint reserve1Cumulative,) = currentCumulativePrices();
        if (block.timestamp == _observation.timestamp) {
            _observation = observations[observations.length-2];
        }

        uint timeElapsed = block.timestamp - _observation.timestamp;
        uint _reserve0 = (reserve0Cumulative - _observation.reserve0Cumulative) / timeElapsed;
        uint _reserve1 = (reserve1Cumulative - _observation.reserve1Cumulative) / timeElapsed;
        amountOut = _getAmountOut(amountIn, tokenIn, _reserve0, _reserve1);
    }

    // as per `current`, however allows user configured granularity, up to the full window size
    function quote(address tokenIn, uint amountIn, uint granularity) external view returns (uint amountOut) {
        uint [] memory _prices = sample(tokenIn, amountIn, granularity, 1);
        uint priceAverageCumulative;
        for (uint i = 0; i < _prices.length; i++) {
            priceAverageCumulative += _prices[i];
        }
        return priceAverageCumulative / granularity;
    }

    // returns a memory set of twap prices
    function prices(address tokenIn, uint amountIn, uint points) external view returns (uint[] memory) {
        return sample(tokenIn, amountIn, points, 1);
    }

    function sample(address tokenIn, uint amountIn, uint points, uint window) public view returns (uint[] memory) {
        uint[] memory _prices = new uint[](points);

        uint length = observations.length-1;
        uint i = length - (points * window);
        uint nextIndex = 0;
        uint index = 0;

        for (; i < length; i+=window) {
            nextIndex = i + window;
            uint timeElapsed = observations[nextIndex].timestamp - observations[i].timestamp;
            uint _reserve0 = (observations[nextIndex].reserve0Cumulative - observations[i].reserve0Cumulative) / timeElapsed;
            uint _reserve1 = (observations[nextIndex].reserve1Cumulative - observations[i].reserve1Cumulative) / timeElapsed;
            _prices[index] = _getAmountOut(amountIn, tokenIn, _reserve0, _reserve1);
            // index < length; length cannot overflow
            unchecked {
                index = index + 1;
            }
        }
        return _prices;
    }

    // this low-level function should be called by addLiquidity functions in Router.sol, which performs important safety checks
    // standard uniswap v2 implementation
    function mint(address to) external lock returns (uint liquidity) {
        (uint _reserve0, uint _reserve1) = (reserve0, reserve1);
        uint _balance0 = IERC20(token0).balanceOf(address(this));
        uint _balance1 = IERC20(token1).balanceOf(address(this));
        uint _amount0 = _balance0 - _reserve0;
        uint _amount1 = _balance1 - _reserve1;

        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        if (_totalSupply == 0) {
            liquidity = Math.sqrt(_amount0 * _amount1) - MINIMUM_LIQUIDITY;
            _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
        } else {
            liquidity = Math.min(_amount0 * _totalSupply / _reserve0, _amount1 * _totalSupply / _reserve1);
        }
        require(liquidity > 0, 'ILM'); // Pair: INSUFFICIENT_LIQUIDITY_MINTED
        _mint(to, liquidity);

        _update(_balance0, _balance1, _reserve0, _reserve1);
        emit Mint(msg.sender, _amount0, _amount1);
    }

    // this low-level function should be called from a contract which performs important safety checks
    // standard uniswap v2 implementation
    function burn(address to) external lock returns (uint amount0, uint amount1) {
        (uint _reserve0, uint _reserve1) = (reserve0, reserve1);
        (address _token0, address _token1) = (token0, token1);
        uint _balance0 = IERC20(_token0).balanceOf(address(this));
        uint _balance1 = IERC20(_token1).balanceOf(address(this));
        uint _liquidity = balanceOf[address(this)];

        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        amount0 = _liquidity * _balance0 / _totalSupply; // using balances ensures pro-rata distribution
        amount1 = _liquidity * _balance1 / _totalSupply; // using balances ensures pro-rata distribution
        require(amount0 > 0 && amount1 > 0, 'ILB'); // Pair: 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);
        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(!PairFactory(factory).isPaused());
        require(amount0Out > 0 || amount1Out > 0, 'IOA'); // Pair: INSUFFICIENT_OUTPUT_AMOUNT
        (uint _reserve0, uint _reserve1) =  (reserve0, reserve1);
        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'IL'); // Pair: INSUFFICIENT_LIQUIDITY

        uint _balance0;
        uint _balance1;
        { // scope for _token{0,1}, avoids stack too deep errors
        (address _token0, address _token1) = (token0, token1);
        require(to != _token0 && to != _token1, 'IT'); // Pair: 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) IPairCallee(to).hook(msg.sender, amount0Out, amount1Out, data); // callback, used for flash loans
        _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, 'IIA'); // Pair: INSUFFICIENT_INPUT_AMOUNT
        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
        (address _token0, address _token1) = (token0, token1);
        if (amount0In > 0) _update0(amount0In * PairFactory(factory).getFee(stable) / 10000); // accrue fees for token0 and move them out of pool
        if (amount1In > 0) _update1(amount1In * PairFactory(factory).getFee(stable) / 10000); // accrue fees for token1 and move them out of pool
        _balance0 = IERC20(_token0).balanceOf(address(this)); // since we removed tokens, we need to reconfirm balances, can also simply use previous balance - amountIn/ 10000, but doing balanceOf again as safety check
        _balance1 = IERC20(_token1).balanceOf(address(this));
        // The curve, either x3y+y3x for stable pools, or x*y for volatile pools
        require(_k(_balance0, _balance1) >= _k(_reserve0, _reserve1), 'K'); // Pair: 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, address _token1) = (token0, token1);
        _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)) - (reserve0));
        _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)) - (reserve1));
    }

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

    function _f(uint x0, uint y) internal pure returns (uint) {
        return x0*(y*y/1e18*y/1e18)/1e18+(x0*x0/1e18*x0/1e18)*y/1e18;
    }

    function _d(uint x0, uint y) internal pure returns (uint) {
        return 3*x0*(y*y/1e18)/1e18+(x0*x0/1e18*x0/1e18);
    }

    function _get_y(uint x0, uint xy, uint y) internal pure returns (uint) {
        for (uint i = 0; i < 255; i++) {
            uint y_prev = y;
            uint k = _f(x0, y);
            if (k < xy) {
                uint dy = (xy - k)*1e18/_d(x0, y);
                y = y + dy;
            } else {
                uint dy = (k - xy)*1e18/_d(x0, y);
                y = y - dy;
            }
            if (y > y_prev) {
                if (y - y_prev <= 1) {
                    return y;
                }
            } else {
                if (y_prev - y <= 1) {
                    return y;
                }
            }
        }
        return y;
    }

    function getAmountOut(uint amountIn, address tokenIn) external view returns (uint) {
        (uint _reserve0, uint _reserve1) = (reserve0, reserve1);
        amountIn -= amountIn * PairFactory(factory).getFee(stable) / 10000; // remove fee from amount received
        return _getAmountOut(amountIn, tokenIn, _reserve0, _reserve1);
    }

    function _getAmountOut(uint amountIn, address tokenIn, uint _reserve0, uint _reserve1) internal view returns (uint) {
        if (stable) {
            uint xy =  _k(_reserve0, _reserve1);
            _reserve0 = _reserve0 * 1e18 / decimals0;
            _reserve1 = _reserve1 * 1e18 / decimals1;
            (uint reserveA, uint reserveB) = tokenIn == token0 ? (_reserve0, _reserve1) : (_reserve1, _reserve0);
            amountIn = tokenIn == token0 ? amountIn * 1e18 / decimals0 : amountIn * 1e18 / decimals1;
            uint y = reserveB - _get_y(amountIn+reserveA, xy, reserveB);
            return y * (tokenIn == token0 ? decimals1 : decimals0) / 1e18;
        } else {
            (uint reserveA, uint reserveB) = tokenIn == token0 ? (_reserve0, _reserve1) : (_reserve1, _reserve0);
            return amountIn * reserveB / (reserveA + amountIn);
        }
    }

    function _k(uint x, uint y) internal view returns (uint) {
        if (stable) {
            uint _x = x * 1e18 / decimals0;
            uint _y = y * 1e18 / decimals1;
            uint _a = (_x * _y) / 1e18;
            uint _b = ((_x * _x) / 1e18 + (_y * _y) / 1e18);
            return _a * _b / 1e18;  // x3y+y3x >= k
        } else {
            return x * y; // xy >= k
        }
    }

    function _mint(address dst, uint amount) internal {
        _updateFor(dst); // balances must be updated on mint/burn/transfer
        totalSupply += amount;
        balanceOf[dst] += amount;
        emit Transfer(address(0), dst, amount);
    }

    function _burn(address dst, uint amount) internal {
        _updateFor(dst);
        totalSupply -= amount;
        balanceOf[dst] -= amount;
        emit Transfer(dst, address(0), amount);
    }

    function approve(address spender, uint amount) external returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
        require(deadline >= block.timestamp, 'Pair: EXPIRED');
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
                keccak256(bytes(name)),
                keccak256(bytes('1')),
                block.chainid,
                address(this)
            )
        );
        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, 'Pair: INVALID_SIGNATURE');
        allowance[owner][spender] = value;

        emit Approval(owner, spender, value);
    }

    function transfer(address dst, uint amount) external returns (bool) {
        _transferTokens(msg.sender, dst, amount);
        return true;
    }

    function transferFrom(address src, address dst, uint amount) external returns (bool) {
        address spender = msg.sender;
        uint spenderAllowance = allowance[src][spender];

        if (spender != src && spenderAllowance != type(uint).max) {
            uint newAllowance = spenderAllowance - amount;
            allowance[src][spender] = newAllowance;

            emit Approval(src, spender, newAllowance);
        }

        _transferTokens(src, dst, amount);
        return true;
    }

    function _transferTokens(address src, address dst, uint amount) internal {
        _updateFor(src); // update fee position for src
        _updateFor(dst); // update fee position for dst

        balanceOf[src] -= amount;
        balanceOf[dst] += amount;

        emit Transfer(src, dst, amount);
    }

    function _safeTransfer(address token,address to,uint256 value) internal {
        require(token.code.length > 0);
        (bool success, bytes memory data) =
        token.call(abi.encodeWithSelector(IERC20.transfer.selector, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))));
    }
}

File 2 of 8 : Math.sol
pragma solidity 0.8.13;

library Math {
    function max(uint a, uint b) internal pure returns (uint) {
        return a >= b ? a : b;
    }
    function min(uint a, uint b) internal pure returns (uint) {
        return a < b ? a : b;
    }
    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;
        }
    }
    function cbrt(uint256 n) internal pure returns (uint256) { unchecked {
        uint256 x = 0;
        for (uint256 y = 1 << 255; y > 0; y >>= 3) {
            x <<= 1;
            uint256 z = 3 * x * (x + 1) + 1;
            if (n / y >= z) {
                n -= y * z;
                x += 1;
            }
        }
        return x;
    }}
}

File 3 of 8 : IERC20.sol
pragma solidity 0.8.13;

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function transfer(address recipient, uint amount) external returns (bool);
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function balanceOf(address) external view returns (uint);
    function transferFrom(address sender, address recipient, uint amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);

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

File 4 of 8 : IPair.sol
pragma solidity 0.8.13;

interface IPair {
    function metadata() external view returns (uint dec0, uint dec1, uint r0, uint r1, bool st, address t0, address t1);
    function claimFees() external returns (uint, uint);
    function tokens() external returns (address, address);
    function transferFrom(address src, address dst, uint amount) external returns (bool);
    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function burn(address to) external returns (uint amount0, uint amount1);
    function mint(address to) external returns (uint liquidity);
    function getReserves() external view returns (uint _reserve0, uint _reserve1, uint _blockTimestampLast);
    function getAmountOut(uint, address) external view returns (uint);
}

File 5 of 8 : IPairCallee.sol
pragma solidity 0.8.13;

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

File 6 of 8 : PairFactory.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import 'contracts/interfaces/IPairFactory.sol';
import 'contracts/Pair.sol';

contract PairFactory is IPairFactory {

    bool public isPaused;
    address public pauser;
    address public pendingPauser;

    uint256 public stableFee;
    uint256 public volatileFee;
    uint256 public constant MAX_FEE = 5; // 0.05%
    address public feeManager;
    address public pendingFeeManager;

    mapping(address => mapping(address => mapping(bool => address))) public getPair;
    address[] public allPairs;
    mapping(address => bool) public isPair; // simplified check if its a pair, given that `stable` flag might not be available in peripherals

    address internal _temp0;
    address internal _temp1;
    bool internal _temp;

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

    constructor() {
        pauser = msg.sender;
        isPaused = false;
        feeManager = msg.sender;
        stableFee = 2; // 0.02%
        volatileFee = 2;
    }

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

    function setPauser(address _pauser) external {
        require(msg.sender == pauser);
        pendingPauser = _pauser;
    }

    function acceptPauser() external {
        require(msg.sender == pendingPauser);
        pauser = pendingPauser;
    }

    function setPause(bool _state) external {
        require(msg.sender == pauser);
        isPaused = _state;
    }

    function setFeeManager(address _feeManager) external {
        require(msg.sender == feeManager, 'not fee manager');
        pendingFeeManager = _feeManager;
    }

    function acceptFeeManager() external {
        require(msg.sender == pendingFeeManager, 'not pending fee manager');
        feeManager = pendingFeeManager;
    }

    function setFee(bool _stable, uint256 _fee) external {
        require(msg.sender == feeManager, 'not fee manager');
        require(_fee <= MAX_FEE, 'fee too high');
        require(_fee != 0, 'fee must be nonzero');
        if (_stable) {
            stableFee = _fee;
        } else {
            volatileFee = _fee;
        }
    }

    function getFee(bool _stable) public view returns(uint256) {
        return _stable ? stableFee : volatileFee;
    }

    function pairCodeHash() external pure returns (bytes32) {
        return keccak256(type(Pair).creationCode);
    }

    function getInitializable() external view returns (address, address, bool) {
        return (_temp0, _temp1, _temp);
    }

    function createPair(address tokenA, address tokenB, bool stable) external returns (address pair) {
        require(tokenA != tokenB, 'IA'); // Pair: IDENTICAL_ADDRESSES
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'ZA'); // Pair: ZERO_ADDRESS
        require(getPair[token0][token1][stable] == address(0), 'PE'); // Pair: PAIR_EXISTS - single check is sufficient
        bytes32 salt = keccak256(abi.encodePacked(token0, token1, stable)); // notice salt includes stable as well, 3 parameters
        (_temp0, _temp1, _temp) = (token0, token1, stable);
        pair = address(new Pair{salt:salt}());
        getPair[token0][token1][stable] = pair;
        getPair[token1][token0][stable] = pair; // populate mapping in the reverse direction
        allPairs.push(pair);
        isPair[pair] = true;
        emit PairCreated(token0, token1, stable, pair, allPairs.length);
    }
}

File 7 of 8 : PairFees.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import 'contracts/interfaces/IERC20.sol';

// Pair Fees contract is used as a 1:1 pair relationship to split out fees, this ensures that the curve does not need to be modified for LP shares
contract PairFees {

    address internal immutable pair; // The pair it is bonded to
    address internal immutable token0; // token0 of pair, saved localy and statically for gas optimization
    address internal immutable token1; // Token1 of pair, saved localy and statically for gas optimization

    constructor(address _token0, address _token1) {
        pair = msg.sender;
        token0 = _token0;
        token1 = _token1;
    }

    function _safeTransfer(address token,address to,uint256 value) internal {
        require(token.code.length > 0);
        (bool success, bytes memory data) =
        token.call(abi.encodeWithSelector(IERC20.transfer.selector, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))));
    }

    // Allow the pair to transfer fees to users
    function claimFeesFor(address recipient, uint amount0, uint amount1) external {
        require(msg.sender == pair);
        if (amount0 > 0) _safeTransfer(token0, recipient, amount0);
        if (amount1 > 0) _safeTransfer(token1, recipient, amount1);
    }

}

File 8 of 8 : IPairFactory.sol
pragma solidity 0.8.13;

interface IPairFactory {
    function allPairsLength() external view returns (uint);
    function isPair(address pair) external view returns (bool);
    function pairCodeHash() external pure returns (bytes32);
    function getPair(address tokenA, address token, bool stable) external view returns (address);
    function createPair(address tokenA, address tokenB, bool stable) external returns (address pair);
}

Settings
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    "forge-std/=lib/forge-std/src/",
    "lib/=lib/rollcall/src/lib/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "rollcall/=lib/rollcall/src/",
    "solmate/=lib/solmate/src/",
    "utils/=test/utils/",
    "contracts/=contracts/"
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  "optimizer": {
    "enabled": true,
    "runs": 200
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  },
  "outputSelection": {
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      "*": [
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        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
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    }
  },
  "evmVersion": "london"
}

Contract Security Audit

Contract ABI

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"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fees","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address","name":"tokenIn","type":"address"}],"name":"getAmountOut","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint256","name":"_reserve0","type":"uint256"},{"internalType":"uint256","name":"_reserve1","type":"uint256"},{"internalType":"uint256","name":"_blockTimestampLast","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"index0","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"index1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastObservation","outputs":[{"components":[{"internalType":"uint256","name":"timestamp","type":"uint256"},{"internalType":"uint256","name":"reserve0Cumulative","type":"uint256"},{"internalType":"uint256","name":"reserve1Cumulative","type":"uint256"}],"internalType":"struct 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Deployed Bytecode

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Block Transaction Difficulty Gas Used Reward
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