Basics in C: C Program to Check if a Number is a Palindrome by Reversing It

📝 Description:

In this blog post, we’ll explore a simple yet effective C program that reverses a given number and checks whether it is a palindrome. A palindrome is a number that reads the same forward and backward, such as 121 or 12321. This program helps you determine if a number is a palindrome using basic concepts like loops, conditional statements, and arithmetic operations.

🚀 Code Implementation:

#include<stdio.h>

int main(){
    int n,s,m;
    s=0;
    printf("Enter a number : ");
    scanf("%d", &n);
    m=n;
    while (n>0){
        s=s*10+n%10;
        n=n/10;
    }
    printf("Reverse of the number is %d\n", s);
    (s==m)?printf("It is a palindrome number...\n"):printf("Not a palindrome number...\n");
    return 0;
}

🔍 Explanation:

Input: The program prompts the user to enter a number.
Reversal Process: The entered number is reversed using a while loop.
Palindrome Check: After reversing, the program compares the reversed number with the original number.
Output: It prints whether the number is a palindrome or not.

📊 Examples:

Example 1:

Input: 121
Process:
- Reversed Number: 121
- Since the reversed number is equal to the original number, 121 is a palindrome.

Output:

Enter a number: 121
Reverse of the number is 121
It is a palindrome number...

Example 2:

Input: 1234
Process:
- Reversed Number: 4321
- Since the reversed number is not equal to the original number, 1234 is not a palindrome.

Output:

Enter a number: 1234
Reverse of the number is 4321
Not a palindrome number...

🎯 Conclusion:

This simple program helps in determining if a number is a palindrome by reversing it. Palindrome numbers have interesting properties and are often used in various programming challenges. Try this code with different inputs and see the results! Happy coding! 😊