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reverse an array in c++ stl Code Example
reverse an array in c++ stl 
//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/
c++ program to reverse an array 
#include<iostream>
using namespace std;
int main()
{
   int a[]={1,2,3,4,5};  // Using Pointer and Array Relationship
    for (int i = 4; i>=0; i--)
    cout<<*(a+i);
   return 0;
}
stl function to reverse an array 
reverse(ar , ar + n) ; //ar is the array , n is the size



Cpp

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