pragma solidity >=0.4.22 <0.6.0; contract Test { mapping (address => uint) balances; event Transfer(address indexed _from, address indexed _to, uint256 _value); constructor() public { balances[tx.origin] = 10000; } function sendCoin(address receiver, uint amount) public returns(bool sufficient) { if (balances[msg.sender] < amount) return false; else if (amount == 1) return false; else if (amount == 2 || amount == 3 || amount == 4) return false; else if (amount == 5) return false; else if (amount == 1) return false; else if (amount == 2 || amount == 3 || amount == 4) return false; else if (amount == 5) return false; else if (amount == 1) return false; else if (amount == 2 || amount == 3 || amount == 4) return false; else if (amount == 5) return false; else if (amount == 1) return false; else if (amount == 2 || amount == 3 || amount == 4) return false; else if (amount == 5) return false; else if (amount == 1) return false; else if (amount == 2 || amount == 3 || amount == 4) return false; else if (amount == 5) return false; balances[msg.sender] -= amount; balances[receiver] += amount; emit Transfer(msg.sender, receiver, amount); if(balances[receiver] >= amount) sufficient = true; } function getBalance(address addr) public view returns(uint) { return balances[addr]; } }