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Modify Pair365080692022-12-06 19:34:38591 days ago1670355278IN
0x1cF7569A...3b73f301D
0 MATIC0.0016527850.18030977
Modify Pair365080582022-12-06 19:34:16591 days ago1670355256IN
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0 MATIC0.0022552845.07230292
Modify Pair365080502022-12-06 19:34:00591 days ago1670355240IN
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0 MATIC0.0023960447.88552361
Modify Pair365080382022-12-06 19:33:36591 days ago1670355216IN
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0 MATIC0.0025568251.09863107
Modify Pair365080292022-12-06 19:33:14591 days ago1670355194IN
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0 MATIC0.0027577355.11396758
Modify Pair365080082022-12-06 19:32:32591 days ago1670355152IN
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0 MATIC0.003012360.20164512
Modify Pair365079842022-12-06 19:31:44591 days ago1670355104IN
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0 MATIC0.0022933176.09646274
Modify Pair365079822022-12-06 19:31:40591 days ago1670355100IN
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0 MATIC0.0046278792.48904469
Modify Pair365076632022-12-06 19:20:42591 days ago1670354442IN
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0 MATIC0.0010555232.04665786
Modify Pair365076502022-12-06 19:20:16591 days ago1670354416IN
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0 MATIC0.0018528737.0301162
Modify Pair365076442022-12-06 19:20:00591 days ago1670354400IN
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0 MATIC0.0016436132.84796256
Modify Pair365076322022-12-06 19:19:36591 days ago1670354376IN
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0 MATIC0.0011148633.84826867
Modify Pair365076222022-12-06 19:19:16591 days ago1670354356IN
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0 MATIC0.0013241840.20349295
Modify Pair365076122022-12-06 19:18:56591 days ago1670354336IN
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0 MATIC0.0012441637.77420812
Modify Pair365076012022-12-06 19:18:34591 days ago1670354314IN
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0 MATIC0.0013831441.99352333
Modify Pair365075912022-12-06 19:18:14591 days ago1670354294IN
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0 MATIC0.0013386640.64321799
Modify Pair365075842022-12-06 19:18:00591 days ago1670354280IN
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0 MATIC0.0019568539.10820232
Modify Pair365075752022-12-06 19:17:38591 days ago1670354258IN
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0 MATIC0.0019102638.17700271
Modify Pair365075632022-12-06 19:17:14591 days ago1670354234IN
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0 MATIC0.0020844641.65841223
Modify Pair365075532022-12-06 19:16:54591 days ago1670354214IN
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0 MATIC0.0014863445.12682907
Modify Pair365075432022-12-06 19:16:34591 days ago1670354194IN
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0 MATIC0.0022789745.54573192
Modify Pair365075342022-12-06 19:16:16591 days ago1670354176IN
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0 MATIC0.0024450948.86579735
Modify Pair365075232022-12-06 19:15:54591 days ago1670354154IN
0x1cF7569A...3b73f301D
0 MATIC0.0022880745.72770613
Modify Pair365075182022-12-06 19:15:40591 days ago1670354140IN
0x1cF7569A...3b73f301D
0 MATIC0.0022188744.34470396
Modify Pair365074462022-12-06 19:11:07591 days ago1670353867IN
0x1cF7569A...3b73f301D
0 MATIC0.0015013830.0054314
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Contract Source Code Verified (Exact Match)

Contract Name:
NPairPool_V2in

Compiler Version
v0.8.16+commit.07a7930e

Optimization Enabled:
Yes with 1000000 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at polygonscan.com on 2022-11-17
*/

/*
                                            ......                                        
                                         ............                                     
                                       ............:....                                  
                                    .................:.....                               
                                  ......................:.....                            
                                ........ .................::.....                         
                             ......... .....................::.....                       
                           ........  .........................:::.....                    
                         ........  ........       ...:..........:::.....                  
                      ......... ........            ...::.........::::.....               
                    ........  ........       ....     ...::..........:::.....             
                  ........ ........        ........     ...:::.........::::.....          
               ........  ........       ...       ....     ...:::........:::::....        
             ........  .......       ....           .....    ...::::........::::....      
           .......   .......       ...                ..:...   ...:::::......:::-:...     
          .......   ......       ...                    ..::..   ...::::......:::-:...    
          .......    .....     ...                        ..::.   ..::-:......::--....    
           .......   ......    ...                        ..::.  ...:::.......:-::...     
            .......   ......     ..                      .::......::::.......:-:....      
             ........  ......     ...                   .::......:::.......::-:....       
              ...:..... .......    ...                ..::......:-:.......:-::....        
                ...:.........:...   ....             .::......::::.......:-:....          
                 ...:.........::..   ..:..          .::......:-::......:--:....           
                  ...::.........:...  ..:..       ..::......:-:.......:-::....            
                   ...::.........:...  ..::.     .:::.....::::.......:-:....              
                    ....:.........::..  ..::.. ..::......:-::......::-:....               
                     ....:.........::... ...::::::......:-::......:--:....                
                      ....::........::.......:--:.....::-:.......:-::...                  
                        ...::........:::... ..:......:-::......::-:....                   
                         ...:::.......:::...     ...:-::......:--:....                    
                          ...:::........:::... ...::-::......:-::....                     
                           ....:::.......::::...::-::......::-:....                       
                            ....:::.......::-::::-::......:--:....                        
                              ...:::.......::-:--::......:--:....                         
                               ....:::......::-::......::-::...                           
                                ....:::...............:--::...                            
                                 ....:-:.............:--:....                             
                                  ....:-::.........::--:....                              
                                   ....:--::.....:::-::...                                
                                     ...::-:::::::--::...                                 
                                      ...::--::::--::...                                  
                                       ....:--:---:...                                    
                                         ...::--::...                                     
                                          ....:.....                                      
                                             ....                                         
                                                                                          
                           +%#  -%#    %%%%%#    *%%%#=    *%*  +%+                         
                           +%%= -%#    %%+...   +%#.-%%.   *%%- +%+                         
                           +%%# -%#    %%=      +%# :%%:   *%%# +%+                         
                           +%#%=-%#    %%*--    +%# :%%:   *%#%-+%+                         
                           +%++%+%#    %%###    +%# :%%:   *%=*#+%+                         
                           +%+.%%%#    %%=      +%# :%%:   *%=:%%%+                         
                           +%+ +%%#    %%=      +%# :%%:   *%= *%%+                         
                           +%+  #%#    %%*===   -%%=+%#    *%= .%%+                         
                           -+=  -++    ++++++    -+**+.    ++-  =+=                                                                                                                
*/

// 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 v4.7.0) (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 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: @openzeppelin/contracts/token/ERC20/ERC20.sol


// OpenZeppelin Contracts (last updated v4.8.0) (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].
 *
 * 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}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * 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 value {ERC20} uses, unless this function is
     * 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: NPairPool-V2in.sol


pragma solidity 0.8.16;



interface INPairPool_in {
    function numberListedPairs() external view returns (uint256);
    function pairListed(uint256 _id) external view returns(address srcToken, uint256 srcDecimals, address destToken, uint256 destDecimals);
}

interface INPairPool_V2in {
    function numberListedPairs() external view returns (uint256);
    function pairListed(uint256 _id) external view returns(address srcToken, address destToken, uint typeAMM);
}

contract NPairPool_V2in is Ownable {

    struct pairStruct{
        address srcToken;
        uint256 srcDecimals;
        address destToken;
        uint256 destDecimals;
        uint typeAMM;
        bool active;
    }

    mapping (uint256 => pairStruct) private pairs;
    mapping (bytes32 => bool) private listedId;

    uint256 private totalPairs;

    event NewPairListed(uint256 indexed _id, address _srcToken, address _destToken, uint256 _timestamp);
    event PairLocked(uint256 indexed _id, uint256 _timestamp);
    event PairUnlocked(uint256 indexed _id, uint256 _timestamp);
    event PairModified(uint256 indexed _id, uint256 _timestamp);
    
    /* WRITE METHODS*/
    /*
    * @dev List new pair ot token
    * () will be defined the unit of measure
    * @param _srcToken token to be invested
    * @param _destToken token to be recived
    * @param _typeAMM type of AMM (0 = 1Inch, 1 = Paraswap)
    * @return bool successfully completed
    */
    function listNewPair(address _srcToken, address _destToken, uint _typeAMM) public onlyOwner returns(bool) {
        require(_srcToken != address(0) && _destToken != address(0), "NEON: null address not allowed");
        require(_srcToken != _destToken, "NEON: Source & Destination token must be different");
        bytes32 uniqueId = _getId(_srcToken, _destToken);
        require(!listedId[uniqueId], "NEON: Token pair already listed");
        pairs[totalPairs + 1].srcToken = _srcToken;
        pairs[totalPairs + 1].destToken = _destToken;
        pairs[totalPairs + 1].srcDecimals = ERC20(_srcToken).decimals();
        pairs[totalPairs + 1].destDecimals = ERC20(_destToken).decimals();
        pairs[totalPairs + 1].typeAMM = _typeAMM;
        pairs[totalPairs + 1].active = true;
        listedId[uniqueId] = true;
        totalPairs += 1;
        emit NewPairListed(totalPairs, _srcToken, _destToken, block.timestamp);
        return true;
    }
    /*
    * @dev Modify pair
    * () will be defined the unit of measure
    * @param _id of the pair to be locked
    * @param _srcToken parameter to be modified, if 0 will be ignored
    * @param _destToken parameter to be modified, if 0 will be ignored
    * @param _typeAMM type of AMM (0 = 1Inch, 1 = Paraswap), if 0 will be ignored
    */
    function modifyPair(
        uint256 _id,
        address _srcToken,
        address _destToken,
        uint _typeAMM
        ) external onlyOwner {

        require(_id > 0, "NEON: ID must be > 0");
        require(_id <= totalPairs, "NEON: ID out of range");
        pairStruct storage pair = pairs[_id];
        if(_srcToken != address(0)){
            pair.srcToken = _srcToken;
            pair.srcDecimals = ERC20(_srcToken).decimals();
        }
        if(_destToken != address(0)){
            pair.destToken = _destToken;
            pair.destDecimals = ERC20(_destToken).decimals();            
        }
        pair.typeAMM = _typeAMM != 0 ? _typeAMM : pair.typeAMM;
        emit PairModified(_id, block.timestamp);
    }
    /*
    * @dev Blacklist a pair
    * () will be defined the unit of measure
    * @param _id of the pair to be locked
    */
    function lockPair(uint256 _id) external onlyOwner {
        require(_id > 0, "NEON: ID must be > 0");
        require(_id <= totalPairs, "NEON: ID out of range");

        pairStruct storage pair = pairs[_id];

        require(pair.active, "NEON: Pair already locked");

        pair.active = false;
        emit PairLocked(_id, block.timestamp);
    }
    /*
    * @dev Unlock a pair
    * () will be defined the unit of measure
    * @param _id of the pair to be unlocked
    */
    function unlockPair(uint256 _id) external onlyOwner {
        require(_id > 0, "NEON: ID must be > 0");
        require(_id <= totalPairs, "NEON: ID out of range");

        pairStruct storage pair = pairs[_id];

        require(!pair.active, "NEON: Pair already unlocked");

        pair.active = true;
        emit PairUnlocked(_id, block.timestamp);
    }
    /*
    * @dev download pair list from another NEON pool V1
    * () will be defined the unit of measure
    * @param _contract address of the old pool where pair list will be downloaded
    */
    function downloadPairList(address _contract) external onlyOwner {
        uint256 poolTotalPairs = INPairPool_in(_contract).numberListedPairs();
        for(uint256 i=1; i<=poolTotalPairs; i++){
            (address srcToken, , address destToken, ) = INPairPool_in(_contract).pairListed(i);
            listNewPair(srcToken, destToken, 1);
        }
    }
    /*
    * @dev download pair list from another NEON pool V2
    * () will be defined the unit of measure
    * @param _contract address of the old pool where pair list will be downloaded
    */
    function downloadPairListV2(address _contract) external onlyOwner {
        uint256 poolTotalPairs = INPairPool_V2in(_contract).numberListedPairs();
        for(uint256 i=1; i<=poolTotalPairs; i++){
            (address srcToken, address destToken, uint typeAMM) = INPairPool_V2in(_contract).pairListed(i);
            listNewPair(srcToken, destToken, typeAMM);
        }
    }
    /* INTERNAL */
    function _getId(address _srcToken, address _destToken) private pure returns (bytes32){
        return keccak256(abi.encodePacked(_srcToken, _destToken));
    }
    /* VIEW METHODS */
    /*
    * @view Total Pairs listed
    * () will be defined the unit of measure
    * @return uint256 total listed pairs
    */
    function numberListedPairs() external view returns(uint256) {
        return totalPairs;
    }
    /*
    * @view pair listed address
    * () will be defined the unit of measure
    * @param _id of the pair
    * @return srcToken address source token
    * @return srcDecimals token decimals
    * @return destToken address destination token
    * @return destDecimals token decimals
    * @return typeAMM type of AMM (1 = Paraswap, 2 = 1Inch)
    */
    function pairListed(uint256 _id) external view returns(address srcToken, uint256 srcDecimals, address destToken, uint256 destDecimals, uint typeAMM) {
        require(_id > 0, "NEON: ID must be > 0");
        require(_id <= totalPairs, "NEON: ID out of range");
        if(pairs[_id].active){
            srcToken =  pairs[_id].srcToken;
            destToken =  pairs[_id].destToken;
            srcDecimals =  pairs[_id].srcDecimals;
            destDecimals =  pairs[_id].destDecimals;
            typeAMM =  pairs[_id].typeAMM;
        }
    }
}

Contract Security Audit

Contract ABI

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_id","type":"uint256"},{"indexed":false,"internalType":"address","name":"_srcToken","type":"address"},{"indexed":false,"internalType":"address","name":"_destToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"_timestamp","type":"uint256"}],"name":"NewPairListed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_timestamp","type":"uint256"}],"name":"PairLocked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_timestamp","type":"uint256"}],"name":"PairModified","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"_timestamp","type":"uint256"}],"name":"PairUnlocked","type":"event"},{"inputs":[{"internalType":"address","name":"_contract","type":"address"}],"name":"downloadPairList","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_contract","type":"address"}],"name":"downloadPairListV2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_srcToken","type":"address"},{"internalType":"address","name":"_destToken","type":"address"},{"internalType":"uint256","name":"_typeAMM","type":"uint256"}],"name":"listNewPair","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_id","type":"uint256"}],"name":"lockPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_id","type":"uint256"},{"internalType":"address","name":"_srcToken","type":"address"},{"internalType":"address","name":"_destToken","type":"address"},{"internalType":"uint256","name":"_typeAMM","type":"uint256"}],"name":"modifyPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"numberListedPairs","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_id","type":"uint256"}],"name":"pairListed","outputs":[{"internalType":"address","name":"srcToken","type":"address"},{"internalType":"uint256","name":"srcDecimals","type":"uint256"},{"internalType":"address","name":"destToken","type":"address"},{"internalType":"uint256","name":"destDecimals","type":"uint256"},{"internalType":"uint256","name":"typeAMM","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_id","type":"uint256"}],"name":"unlockPair","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Swarm Source

ipfs://7a209d69b368c7224570bb6969cac54c9ed73b605004c383cbb713ff41441815

Block Transaction Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.