smit-1923

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an

smit-1923

REMIX DEFAULT WORKSPACE

Remix default workspace is present when:
i. Remix loads for the very first time 
ii. A new workspace is created
iii. There are no files existing in the File Explorer

This workspace contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.

smit-1923

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

smit-1923

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

smit-1923

// SPDX-License-Identifier: MIT
pragma solidity 0.6.0;

import "hardhat/console.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "./BasicMetaTransaction.sol";


contract newNodes is BasicMetaTransaction {