/** *Submitted for verification at Etherscan.io on 2020-06-25 */ // UniCrypt is a decentralised liquidity pool running on Uniswap - Powered by Uniswap // https://unicrypt.network 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 UniCrypt is ERC20 { using SafeMath for uint256; mapping (address => uint256) private balances; mapping (address => mapping (address => uint256)) private allowed; string public constant name = "UniCrypt"; string public constant symbol = "UNC"; uint8 public constant decimals = 18; address owner = msg.sender; uint256 _totalSupply = (10 ** 9) * (10 ** 18); // 1 billion supply constructor() public { balances[msg.sender] = _totalSupply; 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); } } 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); } }