03.Reverse an Array
EasyArrays// Mission briefing
Given an array arr[] of integers, reverse the array. Reversing an array means rearranging the elements such that the first element becomes the last, the second element becomes the second last, and so on.
Implement a function that takes an array of integers and returns the reversed array.
// Constraints
1 <= len(arr) <= 10^5-10^9 <= arr[i] <= 10^9
Time limit: 1s · Memory limit: 256 MB
Hint 1
Consider using two pointers, one starting at the beginning and the other at the end of the array.
Hint 2
Swap the elements at these two pointers and move them towards each other.
Hint 3
Continue swapping until the pointers meet or cross each other.