Quick Answer: How Do You Store An Array In Reverse Order?

How do you reverse an array in Java?

Reversing an array in java can be done in three simple methods.

The first method is as follows: (i) Take input the size of array and the elements of array.

(ii) Consider a function reverse which takes the parameters-the array(say arr) and the size of the array(say n)..

How do you reverse an array recursively?

Recursive Way : Initialize start and end indexes as start = 0, end = n-1. Swap arr[start] with arr[end] Recursively call reverse for rest of the array.Sep 8, 2020

How do you reverse an array without using another array?

Steps to reverse an array without using another array in C: Set i=0 to point to the first element and j=length-1 to point to the last element of the array. Run while loop with the condition i

How do you reverse an array in CPP?

#include #include using namespace std;// Utility function to print contents of an array. void print(int arr[], int n){ for (int i = 0; i < n; i++) {cout << arr[i] << " "; }}// Utility function to reverse elements of an array. void reverse(int arr[], int n){ reverse(arr, arr + n);More items...

How do you reverse an array in python without function?

# Get list length.L = len(numbers)# i goes from 0 to the middle.for i in range(int(L/2)):# Swap each number with the number in.# the mirror position for example first.# and last.n = numbers[i]More items…•Aug 14, 2018

How do you print an array in reverse order in Python?

6. Python program to print the elements of an array in reverse orderSTEP 1: Declare and initialize an array.STEP 2: Loop through the array in reverse order that is, the loop will start from (length of the array – 1) and end at 0 by decreasing the value of i by 1.STEP 3: Print the element arr[i] in each iteration.

How do you reverse the order of an array?

Answer: There are three methods to reverse an array in Java.Using a for loop to traverse the array and copy the elements in another array in reverse order.Using in-place reversal in which the elements are swapped to place them in reverse order.Using the reverse method of the Collections interface that works on lists.Feb 18, 2021

How do you return an array?

How to return an array in Javaimport java.util.Arrays;public class ReturnArrayExample1.{public static void main(String args[]){int[] a=numbers(); //obtain the array.for (int i = 0; i < a.length; i++) //for loop to print the array.System.out.print( a[i]+ " ");More items...

How do you reverse a 2D array in Java?

For every row in the given 2D array do the following:Intialise the start index as 0 and end index as N-1.Iterate loop till start index is less than ending index, swap the value at these indexes and update the index as: swap(arr[i][start], arr[i][end]) start++; end–;May 4, 2020

How do you reverse an array pointer?

Approach : In reverse function we take two pointers one pointing at the beginning of the array, other pointing at end of the array. The contents of the memory location pointed by these two pointers are swapped and then the value of first pointer is increased and that of second pointer is decreased .

How do you swap two arrays?

Write a c program for swapping of two arrays#includeint main() {int a[10],b[10],c[10],i;printf(“Enter First array->”);for (i=0;i<10;i++)scanf("%d",&a[i]);printf("\nEnter Second array->“);for (i=0;i<10;i++)More items...

How do I reverse an array order in C++?

Algorithm to reverse an arrayFirst of all take number of elements as input from user. Let it be N.Then ask user to enter N numbers and store it in an array(lets call it inputArray).Declare another array of size equal to input array.Using a for loop, copy elements from inputArray to reverseArray in reverse order.