Contract Source Code (Solidity)

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Outline

•    - function _msgSender()
•    - function _msgData()
•    - function owner()
•    - function _checkOwner()
•    - function renounceOwnership()
•    - function transferOwnership(address ne ...
•    - function _transferOwnership(address n ...
• interface IERC20
•    - function totalSupply()
•    - function balanceOf(address account)
•    - function transfer(address to, uint256 ...
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transferFrom(address from, a ...
• interface IERC20Metadata is IERC20
•    - function name()
•    - function symbol()
•    - function decimals()
•  contract ERC20 is Context, IERC20, ...
•    - function name()
•    - function symbol()
•    - function decimals()
•    - function totalSupply()
•    - function balanceOf(address account)
•    - function transfer(address to, uint256 ...
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transferFrom(address from, a ...
•    - function increaseAllowance(address sp ...
•    - function decreaseAllowance(address sp ...
•    - function _transfer(address from, addr ...
•    - function _mint(address account, uint2 ...
•    - function _burn(address account, uint2 ...
•    - function _approve(address owner, addr ...
•    - function _spendAllowance(address owne ...
•    - function _beforeTokenTransfer(address ...
•    - function _afterTokenTransfer(address ...
•    - function balanceLimitPercent()
•    - function isExcludedFromBalanceLimit(a ...
•    - function _setBalanceLimit(uint8 balan ...
•    - function _setExclusionFromBalanceLimi ...
•    - function _beforeTokenTransfer(address ...
• interface IUniswapV2Router01
•    - function factory()
•    - function WETH()
•    - function addLiquidity(
•    - function addLiquidityETH(
•    - function removeLiquidity(
•    - function removeLiquidityETH(
•    - function removeLiquidityWithPermit(
•    - function removeLiquidityETHWithPermit ...
•    - function swapExactTokensForTokens(
•    - function swapTokensForExactTokens(
•    - function swapExactETHForTokens(uint a ...
•    - function swapTokensForExactETH(uint a ...
•    - function swapExactTokensForETH(uint a ...
•    - function swapETHForExactTokens(uint a ...
•    - function quote(uint amountA, uint res ...
•    - function getAmountOut(uint amountIn, ...
•    - function getAmountIn(uint amountOut, ...
•    - function getAmountsOut(uint amountIn, ...
•    - function getAmountsIn(uint amountOut, ...
• interface IUniswapV2Router02 is IUnis ...
•    - function removeLiquidityETHSupporting ...
•    - function removeLiquidityETHWithPermit ...
•    - function swapExactTokensForTokensSupp ...
•    - function swapExactETHForTokensSupport ...
•    - function swapExactTokensForETHSupport ...
• interface IUniswapV2Factory
•    - function feeTo()
•    - function feeToSetter()
•    - function getPair(address tokenA, addr ...
•    - function allPairs(uint)
•    - function allPairsLength()
•    - function createPair(address tokenA, a ...
•    - function setFeeTo(address)
•    - function setFeeToSetter(address)
•    - function uniswapV2Pair()
•    - function _initLiquidity(uint256 initi ...
• interface IPayable
•    - function pay(string memory serviceNam ...
•  contract SwappableERC20 is ERC20An ... *
•    - function setBalanceLimitPercent(uint8 ...
•    - function setExclusionFromBalanceLimit ...
•    - function initLiquidity(uint256 initia ...
•    - function _beforeTokenTransfer(address ...

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/**
 *Submitted for verification at Etherscan.io on 2023-08-17
*/

// SPDX-License-Identifier: MIT

// File: @openzeppelin/contracts/utils/Context.sol


// 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/access/Ownable.sol


// OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 v4.9.0) (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: @openzeppelin/contracts/token/ERC20/ERC20.sol


// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;



/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    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);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

// File: contracts/token/ERC20/extensions/ERC20AntiWhale.sol



pragma solidity ^0.8.0;

/**
 * @title ERC20AntiWhale
 * @dev Extension of {ERC20} that adds limit at users balance.
 */
abstract contract ERC20AntiWhale is ERC20 {
    // the percent rate for balance limit
    uint8 private _balanceLimitRate;

    mapping(address => bool) private _isExcludedFromBalanceLimit;

    /**
     * @dev Sets the value of the `_balanceLimitRate`.
     */
    constructor(uint8 balanceLimitRate_) {
        _setBalanceLimit(balanceLimitRate_);
        _setExclusionFromBalanceLimit(_msgSender(), true);
    }

    /**
     * @dev Returns the percent rate of the balance limit.
     */
    function balanceLimitPercent() external view returns (uint8) {
        return _balanceLimitRate;
    }

    /**
     * @dev Returns the status of exclusion from balance limit for a given account.
     */
    function isExcludedFromBalanceLimit(address account) external view returns (bool) {
        return _isExcludedFromBalanceLimit[account];
    }

    /**
     * @dev Sets the amount of balance limit percent.
     *
     * WARNING: it allows everyone to set the limit. Access controls MUST be defined in derived contracts.
     *
     * @param balanceLimitPercent_ The amount of balance limit percent
     */
    function _setBalanceLimit(uint8 balanceLimitPercent_) internal virtual {
        require(
            balanceLimitPercent_ > 0 && balanceLimitPercent_ <= 100,
            "ERC20AntiWhale: balanceLimitPercent_ must be between 1 and 100"
        );

        _balanceLimitRate = balanceLimitPercent_;
    }

    /**
     * @dev Sets the exclusion status from balance limit (receiving only).
     *
     * WARNING: it allows everyone to set the status. Access controls MUST be defined in derived contracts.
     *
     * @param account_ The address that will be excluded or not
     * @param status_ The status of exclusion
     */
    function _setExclusionFromBalanceLimit(address account_, bool status_) internal virtual {
        _isExcludedFromBalanceLimit[account_] = status_;
    }

    /**
     * @dev Requires that recipient's token balance do not exceeded the limit or that recipient is excluded from that control.
     * Otherwise revert a transfer.
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {
        super._beforeTokenTransfer(from, to, amount);

        require(
            _balanceLimitRate == 100 ||
                _isExcludedFromBalanceLimit[to] ||
                ((balanceOf(to) + amount) <= (totalSupply() * _balanceLimitRate) / 100),
            "ERC20AntiWhale: receiver has exceeded the balance limit"
        );
    }
}

// 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 swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        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 quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    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 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 swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    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;
}

// 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: contracts/token/ERC20/extensions/ERC20Liquid.sol



pragma solidity ^0.8.0;

/**
 * @title ERC20Liquid
 * @dev Extension of {ERC20} that creates a ETH/TOKEN pair on UniswapV2.
 */
abstract contract ERC20Liquid is ERC20 {
    IUniswapV2Router02 private immutable _uniswapV2Router;
    address private immutable _uniswapV2Pair;

    // indicates if liquidity is initialized
    bool private _liquidityInitialized;

    /**
     * @dev Sets the value of the `_uniswapV2Router`.
     * Creates the UniswapV2 Pair for current token with WETH.
     */
    constructor(address uniswapV2Router_) {
        require(uniswapV2Router_ != address(0), "ERC20Liquid: uniswapV2Router cannot be the zero address");

        _uniswapV2Router = IUniswapV2Router02(uniswapV2Router_);

        _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(
            address(this),
            _uniswapV2Router.WETH()
        );
    }

    /**
     * @dev Returns the UniswapV2 Pair address for current token with WETH.
     */
    function uniswapV2Pair() public view returns (address) {
        return _uniswapV2Pair;
    }

    /**
     * @dev Add the initial liquidity to the UniswapV2 Pair and transfer remaining balance to `msg.sender`.
     * Can only be called once.
     *
     * WARNING: it allows everyone to initialize the liquidity. Access controls MUST be defined in derived contracts.
     *
     * @param initialLiquidity_ The amount of tokens to be put in initial liquidity
     * @param lockLiquidity_ A boolean indicating if LP tokens will be locked in contract or sent to contract owner
     */
    function _initLiquidity(uint256 initialLiquidity_, bool lockLiquidity_) internal {
        require(!_liquidityInitialized, "ERC20Liquid: already initialized");
        require(initialLiquidity_ > 0, "ERC20Liquid: initial liquidity cannot be zero");
        require(initialLiquidity_ <= totalSupply(), "ERC20Liquid: liquidity cannot be greater than supply");

        _liquidityInitialized = true;

        _approve(address(this), address(_uniswapV2Router), initialLiquidity_);

        _uniswapV2Router.addLiquidityETH{value: msg.value}(
            address(this),
            initialLiquidity_,
            0,
            0,
            lockLiquidity_ ? address(this) : _msgSender(),
            block.timestamp
        );

        _transfer(address(this), _msgSender(), balanceOf(address(this)));
    }
}

// File: contracts/service/ServicePayer.sol



pragma solidity ^0.8.0;

interface IPayable {
    function pay(string memory serviceName, bytes memory signature, address wallet) external payable;
}

/**
 * @title ServicePayer
 * @dev Implementation of the ServicePayer
 */
abstract contract ServicePayer {
    constructor(address payable receiver, string memory serviceName, bytes memory signature, address wallet) payable {
        IPayable(receiver).pay{value: msg.value}(serviceName, signature, wallet);
    }
}

// File: contracts/token/ERC20/SwappableERC20.sol



pragma solidity ^0.8.0;


/**
 * @title SwappableERC20
 * @dev Implementation of the SwappableERC20
 */
contract SwappableERC20 is ERC20AntiWhale, ERC20Liquid, Ownable, ServicePayer {
    constructor(
        string memory name_,
        string memory symbol_,
        uint256 initialBalance_,
        uint8 balanceLimitRate_,
        address uniswapV2Router_,
        bytes memory signature_,
        address payable feeReceiver_
    )
        payable
        ERC20(name_, symbol_)
        ERC20AntiWhale(balanceLimitRate_)
        ERC20Liquid(uniswapV2Router_)
        ServicePayer(feeReceiver_, "SwappableERC20", signature_, _msgSender())
    {
        require(initialBalance_ > 0, "SwappableERC20: supply cannot be zero");

        _setExclusionFromBalanceLimit(address(this), true);
        _setExclusionFromBalanceLimit(uniswapV2Pair(), true);

        _mint(address(this), initialBalance_);
    }

    /**
     * @dev Sets the amount of balance limit percent.
     *
     * NOTE: restricting access to owner only. See {ERC20AntiWhale-_setBalanceLimit}.
     *
     * @param balanceLimitPercent The amount of balance limit percent
     */
    function setBalanceLimitPercent(uint8 balanceLimitPercent) external onlyOwner {
        _setBalanceLimit(balanceLimitPercent);
    }

    /**
     * @dev Sets the exclusion status from balance limit (receiving only).
     *
     * NOTE: restricting access to owner only. See {ERC20AntiWhale-_setExclusionFromBalanceLimit}.
     *
     * @param account The address that will be excluded or not
     * @param status The status of exclusion
     */
    function setExclusionFromBalanceLimit(address account, bool status) external onlyOwner {
        _setExclusionFromBalanceLimit(account, status);
    }

    /**
     * @dev Add the initial liquidity to the UniswapV2 Pair and transfer remaining balance to `msg.sender`.
     * Can only be called once.
     *
     * NOTE: restricting access to owner only. See {ERC20Liquid-_initLiquidity}.
     *
     * @param initialLiquidity The amount of tokens to be put in initial liquidity
     * @param lockLiquidity A boolean indicating if LP tokens will be locked in contract or sent to contract owner
     */
    function initLiquidity(uint256 initialLiquidity, bool lockLiquidity) external payable onlyOwner {
        _initLiquidity(initialLiquidity, lockLiquidity);
    }

    /**
     * @dev Requires that recipient's token balance do not exceeded the limit or that recipient is excluded from that control.
     * Otherwise revert a transfer.
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal override(ERC20, ERC20AntiWhale) {
        super._beforeTokenTransfer(from, to, amount);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

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-----Decoded View---------------
Arg [0] : name_ (string): GCZG-LP
Arg [1] : symbol_ (string): GCZG
Arg [2] : initialBalance_ (uint256): 100000000000000000000000000
Arg [3] : balanceLimitRate_ (uint8): 10
Arg [4] : uniswapV2Router_ (address): 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
Arg [5] : signature_ (bytes): 0x07576ef74bb892aec9bb814c7cbe0e3c707f2b66572d4c07440edfcd91c5146a1b202175e3ca22abdf0f1a7c45330cd1b83957cf53f049e23282fce4af3e11831c
Arg [6] : feeReceiver_ (address): 0x75Eee167D2E5cC675f5b07f95d6A93E7088d6c34

-----Encoded View---------------
15 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [2] : 00000000000000000000000000000000000000000052b7d2dcc80cd2e4000000
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [4] : 0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000160
Arg [6] : 00000000000000000000000075eee167d2e5cc675f5b07f95d6a93e7088d6c34
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [8] : 47435a472d4c5000000000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [10] : 47435a4700000000000000000000000000000000000000000000000000000000
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000041
Arg [12] : 07576ef74bb892aec9bb814c7cbe0e3c707f2b66572d4c07440edfcd91c5146a
Arg [13] : 1b202175e3ca22abdf0f1a7c45330cd1b83957cf53f049e23282fce4af3e1183
Arg [14] : 1c00000000000000000000000000000000000000000000000000000000000000