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// File: contracts/uniswapv2/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);
    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);
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// Copyright (C) 2015, 2016, 2017 Dapphub
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
pragma solidity ^0.4.18;
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// File: contracts/uniswapv2/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);
    function migrator() 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);
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "./ERC677.sol";
import "./ERC777Permit.sol";
import "./utils/Ownable.sol";
import "@openzeppelin/contracts/token/ERC777/ERC777.sol";
contract XRUNE is ERC777, ERC777Permit, ERC677, Ownable {
    uint public constant ERA_SECONDS = 86400;
    uint public constant MAX_SUPPLY = 1000000000 ether;
    uint public nextEra = 1622433600; // 2021-05-31
    uint public curve = 1024;
    bool public emitting = false;
    address public reserve = address(0);
    event NewEra(uint256 time, uint256 emission);
    constructor(address owner) public ERC777("XRUNE Token", "XRUNE", new address[](0)) ERC777Permit("XRUNE") Ownable(owner) {
        _mint(owner, MAX_SUPPLY / 2, "", "");
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/* ERC1820 Pseudo-introspection Registry Contract
 * This standard defines a universal registry smart contract where any address (contract or regular account) can
 * register which interface it supports and which smart contract is responsible for its implementation.
 *
 * Written in 2019 by Jordi Baylina and Jacques Dafflon
 *
 * To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to
 * this software to the public domain worldwide. This software is distributed without any warranty.
 *
 * You should have received a copy of the CC0 Public Domain Dedication along with this software. If not, see
 * <http://creativecommons.org/publicdomain/zero/1.0/>.
 *
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