pragma solidity 0.7.0;

library Address {


    /**


     * @dev Returns true if `account` is a contract.


     *


     * [IMPORTANT]


     * ====


     * It is unsafe to assume that an address for which this function returns


     * false is an externally-owned account (EOA) and not a contract.


     *


     * Among others, `isContract` will return false for the following


     * types of addresses:


     *


     *  - an externally-owned account


     *  - a contract in construction


     *  - an address where a contract will be created


     *  - an address where a contract lived, but was destroyed


     * ====


     */


    function isContract(address account) internal view returns (bool) {


        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts


        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned


        // for accounts without code, i.e. `keccak256('')`


        bytes32 codehash;


        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;


        // solhint-disable-next-line no-inline-assembly


        assembly { codehash := extcodehash(account) }


        return (codehash != accountHash && codehash != 0x0);


    }





    /**


     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to


     * `recipient`, forwarding all available gas and reverting on errors.


     *


     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost


     * of certain opcodes, possibly making contracts go over the 2300 gas limit


     * imposed by `transfer`, making them unable to receive funds via


     * `transfer`. {sendValue} removes this limitation.


     *


     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].


     *


     * IMPORTANT: because control is transferred to `recipient`, care must be


     * taken to not create reentrancy vulnerabilities. Consider using


     * {ReentrancyGuard} or the


     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].


     */


    function sendValue(address payable recipient, uint256 amount) internal {


        require(address(this).balance >= amount, "Address: insufficient balance");





        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value


        (bool success, ) = recipient.call{ value: amount }("");


        require(success, "Address: unable to send value, recipient may have reverted");


    }


}

abstract contract Context {


    // Empty internal constructor, to prevent people from mistakenly deploying


    // an instance of this contract, which should be used via inheritance.


    constructor () { }





    function _msgSender() internal view virtual returns (address payable) {


        return msg.sender;


    }





    function _msgData() internal view virtual returns (bytes memory) {


        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691


        return msg.data;


    }


}

interface IERC20 {


  function totalSupply() external view returns (uint256);





  function balanceOf(address who) external view returns (uint256);





  function allowance(address owner, address spender)


    external view returns (uint256);





  function transfer(address to, uint256 value) external returns (bool);





  function approve(address spender, uint256 value)


    external returns (bool);





  function transferFrom(address from, address to, uint256 value)


    external returns (bool);





  event Transfer(


    address indexed from,


    address indexed to,


    uint256 value


  );





  event Approval(


    address indexed owner,


    address indexed spender,


    uint256 value


  );


}

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 () {


        address msgSender = _msgSender();


        _owner = msgSender;


        emit OwnershipTransferred(address(0), msgSender);


    }





    /**


     * @dev Returns the address of the current owner.


     */


    function owner() public view returns (address) {


        return _owner;


    }





    /**


     * @dev Throws if called by any account other than the owner.


     */


    modifier onlyOwner() {


        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 {


        emit OwnershipTransferred(_owner, address(0));


        _owner = 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");


        emit OwnershipTransferred(_owner, newOwner);


        _owner = newOwner;


    }


}

library SafeMath {





  /**


  * @dev Multiplies two numbers, reverts on overflow.


  */


  function mul(uint256 a, uint256 b) internal pure returns (uint256) {


    // Gas optimization: this is cheaper than requiring 'a' not being zero, but the


    // benefit is lost if 'b' is also tested.


    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522


    if (a == 0) {


      return 0;


    }





    uint256 c = a * b;


    require(c / a == b);





    return c;


  }





  /**


  * @dev Integer division of two numbers truncating the quotient, reverts on division by zero.


  */


  function div(uint256 a, uint256 b) internal pure returns (uint256) {


    require(b > 0); // Solidity only automatically asserts when dividing by 0


    uint256 c = a / b;


    // assert(a == b * c + a % b); // There is no case in which this doesn't hold





    return c;


  }





  /**


  * @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).


  */


  function sub(uint256 a, uint256 b) internal pure returns (uint256) {


    require(b <= a);


    uint256 c = a - b;





    return c;


  }





  /**


  * @dev Adds two numbers, reverts on overflow.


  */


  function add(uint256 a, uint256 b) internal pure returns (uint256) {


    uint256 c = a + b;


    require(c >= a);





    return c;


  }





  /**


  * @dev Divides two numbers and returns the remainder (unsigned integer modulo),


  * reverts when dividing by zero.


  */


  function mod(uint256 a, uint256 b) internal pure returns (uint256) {


    require(b != 0);


    return a % b;


  }


}

contract NoRugToken is Context, IERC20, Ownable {


    using SafeMath for uint256;


    using Address for address;





    mapping (address => uint256) private _balances;





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





    uint256 private _totalSupply;





    string private _name;


    string private _symbol;


    uint8 private _decimals;


    


    /**


     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with


     * a default value of 18.


     *


     * To select a different value for {decimals}, use {_setupDecimals}.


     *


     * All three of these values are immutable: they can only be set once during


     * construction.


     */


    constructor () {


        _name = "No Rug Token";


        _symbol = "NRT";


        _decimals = 18;


     


        _totalSupply = _totalSupply.add(35 * 1e4 * 10**_decimals);


        _balances[msg.sender] = _balances[msg.sender].add(35 * 1e4 * 10**_decimals);


        emit Transfer(address(0), msg.sender, 35 * 1e4 * 10**_decimals);


    }


    


    /**


     * @dev Returns the name of the token.


     */


    function name() public view returns (string memory) {


        return _name;


    }





    /**


     * @dev Returns the symbol of the token, usually a shorter version of the


     * name.


     */


    function symbol() public view 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 value {ERC20} uses, unless {_setupDecimals} is


     * called.


     *


     * 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 returns (uint8) {


        return _decimals;


    }





    /**


     * @dev See {IERC20-totalSupply}.


     */


    function totalSupply() public view override returns (uint256) {


        return _totalSupply;


    }





    /**


     * @dev See {IERC20-balanceOf}.


     */


    function balanceOf(address account) public view override returns (uint256) {


        return _balances[account];


    }





    /**


     * @dev See {IERC20-transfer}.


     *


     * Requirements:


     *


     * - `recipient` cannot be the zero address.


     * - the caller must have a balance of at least `amount`.


     */


    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {


        _transfer(_msgSender(), recipient, 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}.


     *


     * Requirements:


     *


     * - `spender` cannot be the zero address.


     */


    function approve(address spender, uint256 amount) public virtual override returns (bool) {


        _approve(_msgSender(), 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};


     *


     * Requirements:


     * - `sender` and `recipient` cannot be the zero address.


     * - `sender` must have a balance of at least `amount`.


     * - the caller must have allowance for ``sender``'s tokens of at least


     * `amount`.


     */


    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));


        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) {


        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(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) {


        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue));


        return true;


    }





    /**


     * @dev Moves tokens `amount` from `sender` to `recipient`.


     *


     * This is 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:


     *


     * - `sender` cannot be the zero address.


     * - `recipient` cannot be the zero address.


     * - `sender` must have a balance of at least `amount`.


     */


    function _transfer(address sender, address recipient, uint256 amount) internal virtual {


        require(sender != address(0), "ERC20: transfer from the zero address");


        require(recipient != address(0), "ERC20: transfer to the zero address");





        _beforeTokenTransfer(sender, recipient, amount);





        _balances[sender] = _balances[sender].sub(amount);


        _balances[recipient] = _balances[recipient].add(amount);


        emit Transfer(sender, recipient, 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(uint256 amount) public {


        require(msg.sender != address(0), "ERC20: burn from the zero address");





        _beforeTokenTransfer(msg.sender, address(0), amount);





        _balances[msg.sender] = _balances[msg.sender].sub(amount);


        _totalSupply = _totalSupply.sub(amount);


        emit Transfer(msg.sender, address(0), amount);


    }





    /**


     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.


     *


     * This is 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 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 to 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 { }


}
