pragma solidity >=0.4.22 <0.6.0;
contract SCAM_Token { // 1. string public constant name = "Safe Crypto And Money"; string public constant symbol = "SCAM"; uint8 public constant decimals = 18; event Approval(address indexed tokenOwner, address indexed spender, uint tokens); event Transfer(address indexed from, address indexed to, uint tokens); mapping(address => uint256) balances; mapping(address => mapping (address => uint256)) allowed; // 2. uint256 totalSupply_ = 10 ** (8 + 18); uint256 preMine_ = 2 * (10 ** (7 + 18)); // This is what the owner of this token will take uint airdropSize_ = 10 ** (6 + 18); address payable owner_; using SafeMath for uint256; constructor() public { require(preMine_ <= totalSupply_); owner_ = msg.sender; // 2. balances[address(this)] = totalSupply_.sub(preMine_); balances[owner_] = preMine_; } function totalSupply() external view returns (uint256) { return totalSupply_; } // 3. function balanceOf(address tokenOwner) external view returns (uint) { return balances[tokenOwner]; } function transfer(address receiver, uint numTokens) public returns (bool) { require(numTokens <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(numTokens); balances[receiver] = balances[receiver].add(numTokens); emit Transfer(msg.sender, receiver, numTokens); return true; } function approve(address delegate, uint numTokens) external returns (bool) { allowed[msg.sender][delegate] = numTokens; emit Approval(msg.sender, delegate, numTokens); return true; } function allowance(address owner, address delegate) external view returns (uint) { return allowed[owner][delegate]; } function transferFrom(address owner, address buyer, uint numTokens) external returns (bool) { require(numTokens <= balances[owner]); require(numTokens <= allowed[owner][msg.sender]); balances[owner] = balances[owner].sub(numTokens); allowed[owner][msg.sender] = allowed[owner][msg.sender].sub(numTokens); balances[buyer] = balances[buyer].add(numTokens); emit Transfer(owner, buyer, numTokens); return true; } // 4. function airdropTokens(address receiver) external { require(msg.sender == owner_); require(airdropSize_ <= balances[address(this)]); this.transfer(receiver, airdropSize_); } // 5. function releaseBNB() external { require(msg.sender == owner_); owner_.transfer(address(this).balance); } // Fallback function function() external payable {}
}
// 6.
library SafeMath { function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; }
}