# Printing the numbers in reverse order using Division and modulo operators using C

CServer Side ProgrammingProgramming

## Problem

How to print the given two-digit number in reverse order with the help of division and Modulo operator using C programming language?

## Solution

So far, we had seen how to reverse the string using string function and without string function. Now let’s see how to reverse the two-digit number without using the predefined function.

The logic we use to reverse the number with the help of operators is −

int firstno=number%10; //stores remainder
int secondno=number/10;// stores quotient

Then print the first number followed by the second number then you will get the reverse number for the given number.

## Program 1

In this example, we will take a 2-digit number and apply division and modulo operator to reverse the number −

#include<stdio.h>
int main(){
int number;
printf("enter a number:");
scanf("%4d",&number);
int firstno=number%10; //stores remainder
int secondno=number/10;// stores quotient
printf("After reversing =%d%d\n",firstno,secondno);
return 0;
}

## Output

enter a number:45
After reversing =54

## Program 2

In this example, we will take a 3-digit number and apply division and modulo operator to reverse the number −

Live Demo

#include<stdio.h>
int main(){
int number,num1,num2,num3,result;
printf("enter a number:");
scanf("%4d",&number);
num1 = number / 100;
num2 = (number % 100) / 10;
num3 = number%10 ;
result = 100*num3 + 10*num2 + num1;
printf("After reversing =%d\n",result);
return 0;
}

## Output

enter a number:479
After reversing =974
Updated on 05-Mar-2021 10:21:24