C Program to Check Number is Palindrome or Not | C Programming Examples

Write a C program for Checking Number is Palindrome or Not. How to Check Number is Palindrome or Not in C programming. Logic for Checking Number is Palindrome or Not in C program.

C Programming Examples:

1. Write a C Program to Check Number is Palindrome or Not  

2. C program to Check Number is Palindrome or Not

3. How to Check Number is Palindrome or Not in C Programming

C Program to Check Number is Palindrome or Not :

#include<stdio.h>

int main() 
{

 int dummy,n,rev=0,x;

 printf("Enter a number\n");

 scanf("%d",&n);

 dummy=n;

 while(n>0)
 {

   x=n%10;

   rev=rev*10+x;

   n=n/10;

 }

 if(dummy==rev) {
     printf("The given number %d is a palindrome\n",rev);
    } else {
     printf("The given number %d is not a palindrome\n",rev);
   }
}

Output: 

Enter a number

343

The given number 343 is a palindrome

Explanation of Finding Reverse of Given Number in C Programming :

A palindrome number is a number that is same after reverse. For example, 121, 34543, 343, 131, 48984 are the palindrome numbers. 

This is same as reversing a number. To print reverse of a number, just we used dummy variable to check whether the reversed number is same as the original one(i.e. 'n').

for example if n=321=dummy then the reverse rev=123.

As dummy is not equal to rev then the output is not a palindrome.(Here we can't use 'n' as it become 0 at the end of the loop which is why we are using a variable 'dummy' for temporary storage of the value).

 

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