Block Builder Weekend #0

    pragma solidity ^0.4.18;


    contract MyToken {
        /* This creates an array with all balances */
        mapping (address => uint256) public balanceOf;

        /* Initializes contract with initial supply tokens to the creator of the contract */
        function MyToken(uint256 initialSupply, string tokenName, string tokenSymbol) public {
            balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens
            tokenName = tokenName;                 // Set the name for display purposes
            tokenSymbol = tokenSymbol;             // Set the symbol for display purposes
        }

        /* Send coins */
        function transfer(address _to, uint256 _value) public {
            require(balanceOf[msg.sender] >= _value);           // Check if the sender has enough
            require(balanceOf[_to] + _value >= balanceOf[_to]); // Check for overflows
            balanceOf[msg.sender] -= _value;                    // Subtract from the sender
            balanceOf[_to] += _value;                           // Add the same to the recipient
        }
    }