Given an array, the task is to copy these array elements into another array in reverse array.
Examples:
Input: array: 1 2 3 4 5 Output: 5 4 3 2 1 Input: array: 10 20 30 40 50 Output: 50 40 30 20 10
Let len be the length of original array. We copy every element original_arr[i] to copy_arr[n-i-1] to get reverse in copy_arr[].
C++
// C program to copy the contents // of one array into another // in the reverse order #include <stdio.h> // Function to print the array void printArray(int arr[], int len) { int i; for (i = 0; i < len; i++) { printf("%d ", arr[i]); } } // Driver code int main() { int original_arr[] = {1, 2, 3, 4, 5}; int len = sizeof(original_arr)/sizeof(original_arr[0]); int copied_arr[len], i, j; // Copy the elements of the array // in the copied_arr in Reverse Order for (i = 0; i < len; i++) { copied_arr[i] = original_arr[len - i - 1]; } // Print the original_arr printf("\nOriginal array: "); printArray(original_arr, len); // Print the copied array printf("\nResultant array: "); printArray(copied_arr, len); return 0; } |
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Java
// Java program to copy the contents // of one array into another // in the reverse order class GFG { // Function to print the array static void printArray(int arr[], int len) { int i; for (i = 0; i < len; i++) { System.out.printf("%d ", arr[i]); } } // Driver code public static void main(String[] args) { int original_arr[] = {1, 2, 3, 4, 5}; int len = original_arr.length; int copied_arr[] = new int[len], i, j; // Copy the elements of the array // in the copied_arr in Reverse Order for (i = 0; i < len; i++) { copied_arr[i] = original_arr[len - i - 1]; } // Print the original_arr System.out.printf("\nOriginal array: "); printArray(original_arr, len); // Print the copied array System.out.printf("\nResultant array: "); printArray(copied_arr, len); } } // This code is contributed by // PrinciRaj1992 |
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Python3
# Python3 program to copy the contents of one # array into another in the reverse order import math as mt # Function to print the array def printArray(arr, Len): for i in range(Len): print(arr[i], end = " ") # Driver code original_arr = [1, 2, 3, 4, 5] Len = len(original_arr) copied_arr = [0 for i in range(Len)] # Copy the elements of the array # in the copied_arr in Reverse Order for i in range(Len): copied_arr[i] = original_arr[Len - i - 1] # Print the original_arr print("Original array: ", end = "") printArray(original_arr, Len) # Print the copied array print("\nResultant array: ", end = "") printArray(copied_arr, Len) # This code is contributed by # Mohit kumar 29 |
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C#
// C# program to copy the contents // of one array into another // in the reverse order using System; class GFG { // Function to print the array static void printArray(int []arr, int len) { int i; for (i = 0; i < len; i++) { Console.Write(arr[i]); } } // Driver code public static void Main() { int []original_arr = {1, 2, 3, 4, 5}; int len = original_arr.Length; int []copied_arr = new int[len]; int i; // Copy the elements of the array // in the copied_arr in Reverse Order for (i = 0; i < len; i++) { copied_arr[i] = original_arr[len - i - 1]; } // Print the original_arr Console.Write("\nOriginal array: "); printArray(original_arr, len); // Print the copied array Console.Write("\nResultant array: "); printArray(copied_arr, len); } } // This code is contributed by Rajput-Ji |
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PHP
<?php // PHP program to copy the contents // of one array into another // in the reverse order // Function to print the array function printArray($arr, $len) { for ($i = 0; $i < $len; $i++) { echo $arr[$i], " "; } } // Driver code $original_arr = array(1, 2, 3, 4, 5); $len = sizeof($original_arr); $copied_arr = array(); // Copy the elements of the array // in the copied_arr in Reverse Order for ($i = 0; $i < $len; $i++) { $copied_arr[$i] = $original_arr[$len - $i - 1]; } // Print the original_arr echo "Original array: "; printArray($original_arr, $len); // Print the copied array echo "\nResultant array: "; printArray($copied_arr, $len); // This code is contributed by Ryuga ?> |
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Output:
Original array: 1 2 3 4 5 Resultant array: 5 4 3 2 1
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