Palindrome program in C

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

Palindrome number algorithm

• Get the number from user
• Hold the number in temporary variable
• Reverse the number
• Compare the temporary number with reversed number
• If both numbers are same, print palindrome number
• Else print not palindrome number

Let's see the palindrome program in C. In this c program, we will get an input from the user and check whether number is palindrome or not.

1. #include<stdio.h>  
2. int main()    
3. {    
4. int n,r,sum=0,temp;    
5. printf("enter the number=");    
6. scanf("%d",&n);    
7. temp=n;    
8. while(n>0)    
9. {    
10. r=n%10;    
11. sum=(sum*10)+r;    
12. n=n/10;    
13. }    
14. if(temp==sum)    
15. printf("palindrome number ");    
16. else    
17. printf("not palindrome");   
18. return 0;  
19. }   

Output:

enter the number=151
palindrome  number

enter the number=5621
not palindrome  number