Sep 25, 2024 · // C++ Program to reverse an array using Recursion #include <iostream> #include <vector> using namespace std; // recursive function to reverse an array from l to r void reverseArrayRec (vector < int > & arr, int l, int r) {if (l >= r) return; // Swap the elements at the ends swap (arr [l], arr [r]); // Recur for the remaining array ...

C++ Program to Reverse an Array. This article will teach you how to reverse an array entered by the user during runtime in a C++ program. Here is the list of programs for reversing an array: Print an array's inverse without actually reversing it; Reverse an array, and then print; Reverse an array using the pointer

Jan 13, 2023 · Given an array arr[] and a position in array, k. Write a function name reverse (a[], k) such that it reverses subarray arr[0..k-1]. Extra space used should be O(1) and time complexity should be O(k). Example: Input: arr[] = {1, 2, 3, 4, 5, 6} …

Mar 30, 2015 · reverse(arr, SIZE); return 0; int temp; for (int i = 0; i < count/2; ++i) arr[i] = temp; temp = arr[count-i-1]; arr[count-i-1] = arr[i]; arr[i] = temp; cout << temp << " "; Your loop only runs for half the length of the array when you divide the count by 2, so it only prints half of the array contents to the screen. This would be my approach:

There are multiple ways to reverse an array in C++. Let’s discuss each of them. The idea is to create a new array and assign elements to it from the input array in reversed order. To do this, we simply have to: Initialize an array with values. Declare a new empty array of the same size.

May 11, 2023 · Arrays can be reversed using the built-in reverse function in C++. Use the reverse function and supply the starting and ending addresses of the array as arguments. Syntax: reverse(arr,arr+n) will reverse the array arr of n elements. Code Implementation in C++. Output:

Mar 17, 2025 · Following are the various ways to get the reverse array in the C++ programming language. Reverse an array using for loop; Reverse an array using the reverse() function; Reverse an array using the user-defined function; Reverse an array using the pointers; Reverse an array using the Recursion function; Program to reverse an array using the for loop

In this method we will use inbuilt reverse function to reverse the array. reverse () is a predefined function in header file algorithm. It reverses the order of the elements in the range [first, last) of any container. reverse(arr, arr+n); for(int i=0; i<n; i++) . cout<<arr[i]<<" "; }

Oct 7, 2021 · Learn how to reverse the elements of an array in-place using C++. This guide provides a step-by-step approach with code examples.

Mar 4, 2022 · C++ implementation to reverse an array using multiple approaches. Consider an integer array, of size n. The task at hand is to reverse the given array. Example: Solution 1: Using Pointers. This method involves using two pointers, start, and end, to point two ends of the array.