C Program to reverse a given integer number using while loop using functions

By: Chaitra

Created: 10/24/2023 04:18

Last modified: 10/24/2023 04:18

Program

#include<stdio.h>
int reverseInt(int num)
{
    int rev = 0, remainder;
    while (num != 0) {
        remainder = num % 10;
        rev = rev * 10 + remainder;
        num /= 10;
    }
    return rev;
}
int main() 
{
    int num;
    printf("Enter an Integer: ");
    scanf("%d", &num);
    printf("Reversed number: %d", reverseInt(num));
    return 0;
}

Output

$ gcc reverse-integer-number-using-while.c
$ ./a.out
Enter an Integer: 35478
Reversed number: 87453