13Day-reverseArray.sol

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0 <0.9.0;

contract Day1 {
//Create a function reverseArray(array, length of array) . This reverseArray() will take two arguments - a dynamic uint type array and length of the array.
//The reverseArray() will reverse the array.
    function reverseArray(uint256[] memory arr, uint256 len)
        public
        pure
        returns (uint256[] memory)
    {
        uint256 temp;
        for (uint256 i = 0; i < len / 2; i++) {
            temp = arr[i];
            arr[i] = arr[len - i - 1];
            arr[len - i - 1] = temp;
        }
        return arr;
    }
}