contract MultiTransfer is Ownable {
    using SafeMath for uint256;
    
    event Transacted(
        address msgSender, // 트랜잭션을 시작한 메시지의 발신자 주소
        address toAddress, // 트랜잭션이 전송된 주소
        uint value // 주소로 보낸 Wei 금액
    );

/**
* @param _to 대상 주소
* @param _amount 전송할 wei의 양
*/
  function multiTransfer(address[] _to, uint256[] _amount) public payable onlyOwner returns (bool) {
    require(_to.length == _amount.length);

    uint256 ui;
    uint256 amountSum = 0;

    for (ui = 0; ui < _to.length; ui++) {
        require(_to[ui] != address(0));
        amountSum = amountSum.add(_amount[ui]);
    }

    require(amountSum <= msg.value);

    for (ui = 0; ui < _to.length; ui++) {
        _to[ui].transfer(_amount[ui]);
        emit Transacted(msg.sender, _to[ui], _amount[ui]);
    }

    return true;
  }
}
function multiTransfer(address[] _to, uint256[] _amount) public payable onlyOwner returns (bool) {
  require(_to.length == _amount.length);

  uint256 ui;
  uint256 amountSum = 0;

  for (ui = 0; ui < _to.length; ui++) {
      require(_to[ui] != address(0));
      amountSum = amountSum.add(_amount[ui]);
  }

  require(amountSum <= msg.value);

  for (ui = 0; ui < _to.length; ui++) {
      _to[ui].transfer(_amount[ui]);
      emit Transacted(msg.sender, _to[ui], _amount[ui]);
  }

  return true;
}

/**
 * @param _to 대상 주소
 * @param _amount 전송할 wei의 양
 */