Reverse an Array

by anupmaurya
0 comment

Problem: Given an array A of size N, print the reverse of it.

Example:

Input:
4  // size of array
1 2 3 4  //array element
Output:
4 3 2 1  //reverse of array

Program to print reverse an Array

#include <bits/stdc++.h> using namespace std; int main() { //code int t,n,temp,i,j; cin>>t; for(int i=0;i<t;i++){ cin>>n; vector<int>arr(n); for(int i=0; i<n; i++){ cin>>arr[i]; } i=0; j=n-1; while(i<=j) { temp=arr[j]; arr[j]=arr[i]; arr[i]=temp; i++; j--; } for(auto it1 : arr) cout<<it1<<" "; cout<<endl; } return 0; }
Code language: C++ (cpp)

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