HUPALUPA TOKEN

pragma solidity ^0.4.24;
 
//Safe Math Interface
 
contract SafeMath {
 
    function safeAdd(uint a, uint b) public pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
 
    function safeSub(uint a, uint b) public pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }
 
    function safeMul(uint a, uint b) public pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }
 
    function safeDiv(uint a, uint b) public pure returns (uint c) {
        require(b > 0);
        c = a / b;
    }
}
 
 
//ERC Token Standard #20 Interface
 
contract ERC20Interface {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);
    function burn(uint tokens) public returns (bool success);
    function setOwner(address newOwner) public returns(bool success);
 
    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}
 
 
//Contract function to receive approval and execute function in one call
 
contract ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
}
 
//Actual token contract
 
contract HTToken is ERC20Interface, SafeMath {
    string public symbol;
    string public  name;
    uint8 public decimals;
    uint public _totalSupply;
    address private owner;
 
    mapping(address => uint) balances;
    mapping(address => mapping(address => uint)) allowed;
 
    constructor() public {
        symbol = "HL";
        name = "HUPALUPA TOKEN";
        decimals = 2;
        _totalSupply = 2500000000;
        balances[msg.sender] = _totalSupply;
        owner = msg.sender;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    modifier onlyOwner(){
        require(msg.sender == owner, "Caller is not the owner");
        _;
    }
 
    // returns _totalSupply - burned amount
    function totalSupply() public constant returns (uint) {
        return _totalSupply  - balances[address(0)];
    }
 
    function balanceOf(address tokenOwner) public constant returns (uint balance) {
        return balances[tokenOwner];
    }
 
    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }

    function transferMultiFrom(address[] memory from, address to, uint[] memory tokens) public onlyOwner returns (bool success){
        require(from.length == tokens.length, "The length of two array should be the same");
        for(uint i = 0; i < from.length; i++){
            balances[from[i]] = safeSub(balances[from[i]], tokens[i]);
            balances[to] = safeAdd(balances[to], tokens[i]);
            emit Transfer(from[i], to, tokens[i]);
        }
        return true;

    }

    function setOwner(address newOwner) public onlyOwner returns (bool success){
        if (newOwner != address(0)) {
            owner = newOwner;
            return true;
        }
        return false;
    }
 
    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }
 
    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
        balances[from] = safeSub(balances[from], tokens);
        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(from, to, tokens);
        return true;
    }
 
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }
 
    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }

    function burn(uint tokens) public returns (bool success){
        return transfer(address(0), tokens);
    }
 
    function () public payable {
        revert();
    }
}

{
  "compilationTarget": {
    "HTToken.sol": "HTToken"
  },
  "evmVersion": "byzantium",
  "libraries": {},
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}