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// SPDX-License-Identifier: GPL-3.0 | |
pragma solidity >=0.8.2 <0.9.0; | |
contract Lottery { | |
address public owner; | |
uint public ticketPrice; | |
uint public lotteryDuration; | |
uint public lastLotteryTime; | |
address[] public players; | |
address public winner; |
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// SPDX-License-Identifier: GPL-3.0 | |
pragma solidity ^0.5.9; | |
import "@0x/contracts-erc20/contracts/src/ERC20Token.sol"; | |
/** | |
* @title SampleERC20 | |
* @dev Create a sample ERC20 standard token | |
*/ |