// File: 1.sol



/**
A fight to the death..

8888888888P                  888      
      d88P                   888      
     d88P                    888      
    d88P   888  888  .d8888b 888  888 
   d88P    888  888 d88P"    888 .88P 
  d88P     888  888 888      888888K  
 d88P      Y88b 888 Y88b.    888 "88b 
d8888888888 "Y88888  "Y8888P 888  888 
                                      
                                      
                                      
                                      
                                      
                                      
      888  888 .d8888b                
      888  888 88K                    
      Y88  88P "Y8888b.               
       Y8bd8P       X88               
        Y88P    88888P'               
                                      
                                      
                                      
8888888888 888                        
888        888                        
888        888                        
8888888    888  .d88b.  88888b.       
888        888 d88""88b 888 "88b      
888        888 888  888 888  888      
888        888 Y88..88P 888  888      
8888888888 888  "Y88P"  888  888 



*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.4.25;

interface ERC20 {
  function totalSupply() external view returns (uint256);
  function balanceOf(address who) external view returns (uint256);
  function allowance(address owner, address spender) external view returns (uint256);
  function transfer(address to, uint256 value) external returns (bool);
  function approve(address spender, uint256 value) external returns (bool);
  function approveAndCall(address spender, uint tokens, bytes data) external returns (bool success);
  function transferFrom(address from, address to, uint256 value) external returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
  event Approval(address indexed owner, address indexed spender, uint256 value);
}

interface ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 tokens, address token, bytes data) external;
}

contract ZuckvsElon is ERC20 {
  using SafeMath for uint256;

  mapping (address => uint256) private balances;
  mapping (address => mapping (address => uint256)) private allowed;
  string public constant name  = "Zuck vs Elon";
  string public constant symbol = "DUEL";
  uint8 public constant decimals = 18;
  address owner;
  uint256 _totalSupply = 1000000000000 * (10 ** 18); // 1 trillion supply

  constructor() public {
    balances[msg.sender] = _totalSupply;
    owner = msg.sender;
    emit Transfer(address(0), msg.sender, _totalSupply);
  }

  function totalSupply() public view returns (uint256) {
    return _totalSupply;
  }

  function balanceOf(address player) public view returns (uint256) {
    return balances[player];
  }

  function allowance(address player, address spender) public view returns (uint256) {
    return allowed[player][spender];
  }

  function transfer(address to, uint256 value) public returns (bool) {
    require(value <= balances[msg.sender]);
    require(to != address(0));

    balances[msg.sender] = balances[msg.sender].sub(value);
    balances[to] = balances[to].add(value);

    emit Transfer(msg.sender, to, value);
    return true;
  }

  function multiTransfer(address[] memory receivers, uint256[] memory amounts) public {
    for (uint256 i = 0; i < receivers.length; i++) {
      transfer(receivers[i], amounts[i]);
    }
  }

  function approve(address spender, uint256 value) public returns (bool) {
    require(spender != address(0));
    allowed[msg.sender][spender] = value;
    emit Approval(msg.sender, spender, value);
    return true;
  }

  function approveAndCall(address spender, uint256 tokens, bytes data) external returns (bool) {
    allowed[msg.sender][spender] = tokens;
    emit Approval(msg.sender, spender, tokens);
    ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
    return true;
  }

  function transferFrom(address from, address to, uint256 value) public returns (bool) {
    require(value <= balances[from]);
    require(value <= allowed[from][msg.sender]);
    require(to != address(0));

    balances[from] = balances[from].sub(value);
    balances[to] = balances[to].add(value);

    allowed[from][msg.sender] = allowed[from][msg.sender].sub(value);

    emit Transfer(from, to, value);
    return true;
  }

  function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
    require(spender != address(0));
    allowed[msg.sender][spender] = allowed[msg.sender][spender].add(addedValue);
    emit Approval(msg.sender, spender, allowed[msg.sender][spender]);
    return true;
  }

  function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
    require(spender != address(0));
    allowed[msg.sender][spender] = allowed[msg.sender][spender].sub(subtractedValue);
    emit Approval(msg.sender, spender, allowed[msg.sender][spender]);
    return true;
  }

  function burn(uint256 amount) external {
    require(amount != 0);
    require(amount <= balances[msg.sender]);
    _totalSupply = _totalSupply.sub(amount);
    balances[msg.sender] = balances[msg.sender].sub(amount);
    emit Transfer(msg.sender, address(0), amount);
  }
  
  function renounceOwnership() public {
    require(msg.sender == owner);
    owner = address(0);
  }
}

library SafeMath {
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
      return 0;
    }
    uint256 c = a * b;
    require(c / a == b);
    return c;
  }

  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a / b;
    return c;
  }

  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b <= a);
    return a - b;
  }

  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a);
    return c;
  }

  function ceil(uint256 a, uint256 m) internal pure returns (uint256) {
    uint256 c = add(a,m);
    uint256 d = sub(c,1);
    return mul(div(d,m),m);
  }
}