General thread for practicing question formatting

[Ashwin-Selvaraj]

solidity//SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

contract Ashwin{
    
    struct Class{
        uint256 rollNo;
        string name;
    }
    

    mapping(uint256=>string) public rollNoToName;

    Class[] public person;
    Class details;

    function addPersonToArray(uint256 _rollNo, string memory _name) public{
        details = Class({rollNo: _rollNo, name: _name});
        rollNoToName[_rollNo]=_name;
        person.push(details);
    }

    function retreive(uint256 _arrayIndex) public view returns(uint256){
        uint256 a=person[_arrayIndex].rollNo;
        return a;

    }
    

}

[PatrickAlphaC]

Remember to add the name of the language next to the 3 backticks!

But otherwise great work!