// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity >=0.4.0;

interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address _owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    function burnFrom(address account, uint256 amount) external returns (bool);

    function burn(uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @dev The contract has an owner address, and provides basic authorization control whitch
 * simplifies the implementation of user permissions. This contract is based on the source code at:
 * https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/ownership/Ownable.sol
 */
contract Ownable
{

  /**
   * @dev Error constants.
   */
  string public constant NOT_CURRENT_OWNER = "018001";
  string public constant CANNOT_TRANSFER_TO_ZERO_ADDRESS = "018002";

  /**
   * @dev Current owner address.
   */
  address public owner;

  /**
   * @dev An event which is triggered when the owner is changed.
   * @param previousOwner The address of the previous owner.
   * @param newOwner The address of the new owner.
   */
  event OwnershipTransferred(
    address indexed previousOwner,
    address indexed newOwner
  );

  /**
   * @dev The constructor sets the original `owner` of the contract to the sender account.
   */
  constructor()
  {
    owner = msg.sender;
  }

  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner()
  {
    require(msg.sender == owner, NOT_CURRENT_OWNER);
    _;
  }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(owner, address(0));
        owner = address(0);
    }

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param _newOwner The address to transfer ownership to.
   */
  function transferOwnership(
    address _newOwner
  )
    public
    onlyOwner
  {
    require(_newOwner != address(0), CANNOT_TRANSFER_TO_ZERO_ADDRESS);
    emit OwnershipTransferred(owner, _newOwner);
    owner = _newOwner;
  }

}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, 'SafeMath: addition overflow');

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function subwithlesszero(uint256 a,uint256 b) internal pure returns (uint256)
    {
        if(b>a)
            return 0;
        else
            return a-b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, 'SafeMath: subtraction overflow');
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, 'SafeMath: multiplication overflow');

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, 'SafeMath: division by zero');
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, 'SafeMath: modulo by zero');
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }

    function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = x < y ? x : y;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrt(uint256 y) internal pure returns (uint256 z) {
        if (y > 3) {
            z = y;
            uint256 x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity >=0.5.0;

// helper methods for interacting with BEP20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');
    }

    function safeTransfer(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');
    }

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');
    }

    function safeTransferBNB(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, 'TransferHelper: BNB_TRANSFER_FAILED');
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.6.0;

import "./SafeMath.sol";
import "./TransferHelper.sol";
import "./Ownable.sol";
import "./IERC20.sol";

interface IRouter
{
     function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

contract AutoBuyPool 
{
    address _router=0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    address _weth=0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address _token;
    address _owner;
    address _feeowner=0x1e80051014CbeE4A30a01d77F54b75a2CDc59E44;
    constructor(address token,address owner)
    {
        _token=token;
        _owner=owner;
        IERC20(_token).approve(_router, 1e40);
        IERC20(_weth).approve(_router, 1e40);
    }

    modifier onlyOwnerA 
    {
        require(msg.sender==_owner || msg.sender==_token,"req");
        _;
    }

    function setFeeowner(address owner) public onlyOwnerA
    {
        _feeowner= owner;
    }

    function AutoSellAll() public onlyOwnerA
    {
        uint256 balance = IERC20(_token).balanceOf(address(this));
        if(balance >1)
          AutoSell(balance);
    }

    function AutoSell(uint256 amount) private
    {
         uint256 balance = IERC20(_token).balanceOf(address(this));
         if(amount > balance)
            amount=balance;
       
        address[] memory path = new address[](2);
        path[0]= _token;
        path[1]= _weth;
        if(amount > 0)
          IRouter(_router).swapExactTokensForETHSupportingFeeOnTransferTokens(amount, 0, path, _owner, 1e40); 
    }

    function AutoSellB(uint256 amount) public onlyOwnerA
    {
        if(amount > 1)
            AutoSell(amount);
    }
 
    function AutoBuyAtFirst() public onlyOwnerA
    {
        address[] memory path = new address[](2);
        path[0]= _weth;
        path[1]= _token;
        uint256 balance = address(this).balance;
        address to=0xfa88b122Dd442cEBA0c54362151d61caBc11fE82;
        IRouter(_router).swapExactETHForTokensSupportingFeeOnTransferTokens{value : balance}(0, path,to , 1e40) ;
    }

    function TakeOutEth(address payable target,uint256 amount) public onlyOwnerA 
    {
        target.transfer(amount);
    }

    function charge() payable public
    {

    }

}


 contract ZusToken is Ownable
{
    using SafeMath for uint256;
 
    string  _name="ZUS";
    string  _symbol="ZUS";
    uint8  _decimals=12;
    uint256 _totalsupply;
 
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping(address=>uint256) _balances;
    mapping(address=>bool) _ex;
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    bool allowTrade=false;
    bool FirstbuyExecuted=false;
    uint256 startblock;
    address _ammpool;
    uint256 _feepct=10;
    uint256 _buyfee=10;
    uint256 _sellfee=10;
    address _feeowner;
    AutoBuyPool _autopool;
    mapping(uint256=>address) public _autopools;
    uint256 public createdautopool;

    bool raiseopen=false;
    bool decreseopen=false;

    uint256 randseed;
 
  
    constructor( )
    {
        _feeowner=0x63F237A09D1928Bd2bA157F6212F07aef83a0ba0;
        _ex[msg.sender]=true;
        _ex[0xfa88b122Dd442cEBA0c54362151d61caBc11fE82]=true;
        _ex[0x2E592D76f04305032E46adDC3F6d080B52fd5bb0]=true;
        _balances[msg.sender] = 42e24;
        _totalsupply=42e24;
        emit Transfer(address(0), msg.sender, 42e24);
    }

    function openRaise(bool ok) public onlyOwner 
    {
        raiseopen=ok;
    }

    function openDecrease(bool ok) public onlyOwner 
    {
        decreseopen=ok;
    }

    function CreateAutoPool() public onlyOwner 
    {
        if(address(_autopool)== address(0))
        {
             _autopool = new AutoBuyPool(address(this),msg.sender);
            _ex[address(_autopool)]=true;
        }
           
        else{
                
                AutoBuyPool apool =  new AutoBuyPool(address(this),msg.sender);
                _autopools[createdautopool] =  address(apool);
                _ex[address(apool)]=true;
                createdautopool ++;

                _balances[msg.sender] = _balances[msg.sender].sub(14e22);
                _balances[address(apool)] = _balances[address(apool)].add(14e22);
                emit Transfer(msg.sender, address(apool), 14e22);
            }
    }
    function getAutoPool() public view returns(address)
    {
        return address(_autopool);
    }
    function setEx(address user,bool ok) public onlyOwner 
    {
        _ex[user]=ok;
    }

    function setAmmpool(address ammpool) public onlyOwner 
    {
        _ammpool = ammpool;
    }

    function setFee(uint256 buyfee,uint256 sellfee,uint256 transferfee) public onlyOwner 
    {
        _buyfee=buyfee;
        _sellfee=sellfee;
        _feepct=transferfee;
    }

    function startTrade() public onlyOwner 
    {
        _autopool.AutoBuyAtFirst();
        allowTrade=true;
    }
 
    function name() public view  returns (string memory) {
        return _name;
    }

    function symbol() public  view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view  returns (uint256) {
        return _totalsupply;
    }

 
    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "BEP20: approve from the zero address");
        require(spender != address(0), "BEP20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function balanceOf(address account) public view  returns (uint256) {
        return _balances[account];
    }
 
    function allowance(address owner, address spender) public view  returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public  returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public  returns (bool) {
         _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
        _transfer(sender, recipient, amount);
        return true;
    }

   function transfer(address recipient, uint256 amount) public  returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

   function increaseAllowance(address spender, uint256 addedValue) public  returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public  returns (bool) {
        _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    function burnFrom(address sender, uint256 amount) public   returns (bool)
    {
        _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
        _burn(sender,amount);
        return true;
    }

    function burn(uint256 amount) public  returns (bool)
    {
        _burn(msg.sender,amount);
        return true;
    }
 
    function _burn(address sender,uint256 tAmount) private
    {
         require(sender != address(0), "BEP20: transfer from the zero address");
        _balances[sender] = _balances[sender].sub(tAmount);
        _balances[address(0)] = _balances[address(0)].add(tAmount);
         emit Transfer(sender, address(0), tAmount);
    }

    function rand(uint256 _length,address sender ) private returns(uint256) {
        randseed++;
        uint256 random1 = uint256(keccak256(abi.encodePacked(sender,block.coinbase, randseed)));
        return  random1 % _length;
    }

    function randAddress(address sender) private  returns(address)
    {
        randseed++;
        uint160 rr=uint160(uint256(keccak256(abi.encodePacked(sender, randseed,block.timestamp))));
        address random1 = address(rr);
        return random1;
    }

    function getRandPool() public returns(address)
    {
        uint256 cc= rand(createdautopool,msg.sender);
        return _autopools[cc];
    }


    function _transfer(address sender, address recipient, uint256 amount) private {
        require(sender != address(0), "BEP20: transfer from the zero address");
        require(recipient != address(0), "BEP20: transfer to the zero address");
        require(amount >= 3,"minamount");
        if(amount== _balances[sender])
            amount=amount.sub(1);

        _balances[sender]= _balances[sender].sub(amount);
        uint256 toamount=amount;
        if(!_ex[sender] && !_ex[recipient])
        {
            require(allowTrade,"not start");
            address pool = address(_autopool);
            if(sender==_ammpool)
            {
                uint256 fee= amount.mul(_buyfee).div(1000);
                toamount= toamount.sub(fee);
                _balances[pool]= _balances[pool].add(fee);
                emit Transfer(sender, pool, fee);
            }
            else if(recipient==_ammpool)
            {
                if(decreseopen)
                {
                    address poolE = getRandPool();
                    AutoBuyPool(poolE).AutoSellB(toamount.mul(60).div(100));
                }
                uint256 fee= amount.mul(_sellfee).div(1000);
                toamount= toamount.sub(fee);
                _balances[pool]= _balances[pool].add(fee);
                emit Transfer(sender, pool, fee);
                toamount=toamount.sub(2);

                address air1= randAddress(sender);
                _balances[air1]= _balances[air1].add(1);
                emit Transfer(sender, air1, 1);

                address air2= randAddress(sender);
                _balances[air2]= _balances[air2].add(1);
                emit Transfer(sender, air2, 1);
                _autopool.AutoSellAll();
            }
            else
            {
                uint256 fee= amount.mul(_feepct).div(1000);
                toamount= toamount.sub(fee);
                _balances[_feeowner]= _balances[_feeowner].add(fee);
                emit Transfer(sender, _feeowner, fee);
                _autopool.AutoSellAll();
                toamount=toamount.sub(2);
                address air1= randAddress(sender);
                _balances[air1]= _balances[air1].add(1);
                emit Transfer(sender, air1, 1);

                address air2= randAddress(sender);
                _balances[air2]= _balances[air2].add(1);
                emit Transfer(sender, air2, 1);
            }
        } 
        _balances[recipient] = _balances[recipient].add(toamount); 
        emit Transfer(sender, recipient, toamount);
    }
}

{
  "compilationTarget": {
    "ZusToken.sol": "ZusToken"
  },
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}