loops.sol

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.8.2 <0.9.0;
contract Array 
{
    uint[3] public arr;
    uint public count;
    function loop() public {
        //While loop//
    while(count<arr.length)
    {
        arr[count]= count;
        count++;
    }
    //for Loop
    for(uint i=count; i<arr.length; i++)
    {
         arr[count]= count;
        count++;
    }
    //Do while loop//
         do 
         {
             arr[count]=count;
             count++;
         }
         while(count< arr.length);
    }
}