Easy Tutorial
❮ C Function Cos C Examples Check Armstrong Number ❯

C Exercise Example 75

C Language Classic 100 Examples

Title: Input an integer and output it in reverse.

Program Analysis: None.

Example - Using strlen()

//  Created by www.tutorialpro.org on 15/11/9.
//  Copyright © 2015 tutorialpro.org. All rights reserved.
//

#include <stdio.h>
int main()
{
    int n, reversedNumber = 0, remainder;

    printf("Enter an integer: ");
    scanf("%d", &n);

    while(n != 0)
    {
        remainder = n%10;
        reversedNumber = reversedNumber*10 + remainder;
        n /= 10;
    }

    printf("Reversed integer: %d", reversedNumber);

    return 0;
}

The above example outputs the following result when run:

Enter an integer: 12345
Reversed integer: 54321

C Language Classic 100 Examples

❮ C Function Cos C Examples Check Armstrong Number ❯