Variable.sol

pragma solidity 0.8.19;

contract Variables {
    uint256 public stateVar; //state variable
    bool public stateVar2; //state variable
    address public stateVar3; //state variable

    constructor() {
        stateVar = 20; // using the state variable
    }

    function localvariable() external pure {
        uint256 localVar = 50; //local variable
        bool M = true; //local variable
    }
}