**Problem Statement**: Given a number N, write a C program to check if the number is Palindrome or Not.

**Examples:**

Example 1:Input:N = 242Output:Palindrome NumberExplanation:The reverse of 242 is equal to original number.Example 2:Input:N = 142Output:Not palindrome numberExplanation:The reverse of 142 is not eqaul to original number

## What is Plaindrome?

A number which is exactly the same as its reverse is called a palindrome.

For Example:

111 is a palindrome, as it is same when reversed. Also, 121 is a palindrome. Similarly, 131 232 444 505 are palindrome

**How to check if a number is palindrome?**

From the definition since it is clear that a number is palindrome if it is the same when reversed. So, we simply need to find the reverse of a number and compare it with the original number.

**Approach:**

We need to reverse the original number and store it in a temporary variable and then check if the reversed number is equal to the original number then it is palindrome else, not a palindrome number

- At first we will store the given number into an temporary variable.
- We will reverse the temporary variable.
- Now we will check if the reversed number is equal to the given original number.
- If the numbers are equal we print Palindrome number else Not Palindrome.

**Code:**

## C Program

```
#include <stdio.h>
int palindrome(int n){
int n1=n,sum=0;
while(n1!=0){
int r=n1%10;
sum=sum*10+r;
n1/=10;
}
return n==sum;
}
int main() {
int n=232;
if(palindrome(n))
printf("It is a palindrome number");
else
printf("It is not a plaindrome number");
return 0;
}
```

**Output: **It is a palindrome number

**Time Complexity:** O(log n)

**Space Complexity:** O(1)

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