solidity ^0.4.18; import "./SafeMath.sol"; import "./Ownable.sol"; import "./ERC20.sol"; contract Algo369 is ERC20Token, Ownable { using SafeMath for uint256; event TokenPurchased(address indexed buyer, uint256 value, uint256 tokens); mapping(address => uint256) balances; mapping (address => mapping (address => uint256)) internal allowed; uint256 totalSupply_; //100000000000000 wei = 0.0001 ether = 5YEN //uint256 public tokenPrice = 100000000000000 * (uint256(10) ** decimals); // In Wei per (1 token * 10^decimals) uint256 public tokenPrice = 100000000000000; string public constant symbol = "ALG"; string public constant name = "Algo369"; uint8 public constant decimals = 0; //function Alpaca() public ERC20Token {} //function Alpaca(string name, string symbol) public ERC20Token(name, symbol) {} function Alpaca() public { //10億 totalSupply_ = 1000000 * (uint256(10) ** decimals); //totalSupply_ = 1000000000; balances[owner] = totalSupply_; } function() public payable { uint256 _tokensAmount = msg.value / tokenPrice; require(msg.sender != address(0)); require(_tokensAmount <= balances[owner]); balances[owner] = balances[owner].sub(_tokensAmount); balances[msg.sender] = balances[msg.sender].add(_tokensAmount); emit Transfer(owner, msg.sender, _tokensAmount); function send() public payable { uint256 _tokensAmount = msg.value / tokenPrice; require(msg.sender != address(0)); require(_tokensAmount <= balances[owner]); balances[owner] = balances[owner].sub(_tokensAmount); balances[msg.sender] = balances[msg.sender].add(_tokensAmount); emit Transfer(owner, msg.sender, _tokensAmount); emit TokenPurchased(msg.sender, msg.value, _tokensAmount); } function totalSupply() public constant returns (uint256) { return totalSupply_; } function balanceOf(address _owner) public constant returns (uint256 balance) { return balances[_owner]; } function allowance(address _owner, address _spender) public constant returns (uint256) { return allowed[_owner][_spender]; } function transfer(address _to, uint256 _amount) public returns (bool) { require(_to != address(0)); require(_amount <= balances[msg.sender]); balances[msg.sender] = balances[msg.sender].sub(_amount); balances[_to] = balances[_to].add(_amount); emit Transfer(msg.sender, _to, _amount); return true; } function approve(address _spender, uint256 _amount) public returns (bool) { allowed[msg.sender][_spender] = _amount; emit Approval(msg.sender, _spender, _amount); return true; } function transferFrom(address _from, address _to, uint256 _amount) public returns (bool) {
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