//Reverse an array using C++ STL
#include <algorithm> //Header file for reverse method
int arr[] = { 1, 2, 3, 4, 5 };
int n = sizeof(arr) / sizeof(arr[0]); //Size of array
reverse(arr, arr + n);
//Now array looks like = { 5, 4, 3, 2, 1 }
//The time complexity is O(n)
//https://www.linkedin.com/in/kalyan-santra-44589a126/