palindromic number in c Archives

Write a C program to demonstrate the recursive function.
Recursion is the programming technique that a process invoking itself again and again. In this program, We reverse the given number and checks it is a palindrome or not. Read more about C Programming Language .

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#include<stdio.h>
#include<conio.h>

int main(){
 clrscr();
 int num,num1,rev;
 printf("nEnter a number :n");
 scanf("%d",&num);
 num1=num;
 //call recursive function
 rev=reverse(num);

 printf("nAfter reverse the number is :n%d",rev);
 if(num1==rev){
  printf("nnNumber  %d is Palindromen",num1);
 }else
 {
  printf("nnNumber  %d is NOT a Palindromen",num1);
 }

 return 0;
}
int sum=0,r;
reverse(int num){
 if(num){
  r=num%10;
  sum=sum*10+r;
  reverse(num/10);
 }
 else
  return sum;
 return sum;
}

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Check for Palindromic number. C program to check whether a given 5 digit number is palindrome or not.

Problem Statement

Write a C program to check if a given 5 digit number is palindrome or not. Take input from the user, check if the given number is a palindromic number and display appropriate message in the end.

A number is said to be a palindromic number if it remains same when reversed. For example 12321 is a palindromic number, where as 12345 is not. You can read more about Palindromic number.

Solution

The program takes input number from the user. Then the digits of the given number are reversed. Reversed number is compared with the original number to check if they are equal. If they are equal, the original number is a palindrome. If they are not equal, then the number is not a palindrome.

The Program

	/* C program to check whether a given 5 digit number is palindrome or not
	* (c) www.c-program-example.com
	*/

	#include<stdio.h>

	int main() {
	int num, rem, i, rev = 0, num1, count = 0;
	printf("Enter a five digit number:\n");

	scanf("%d", &num);
	num1 = num;

	// reverse the given number
	while(num > 0) {
	rem = num % 10;
	rev = rem + rev * 10;
	num = num / 10;
	count++;
	}

	if(count == 5) {
	if(num1 == rev) { // if it's palindrome, reverse & original number will be same
	printf("The Given Number %d is Palindrome", num1);
	} else {
	printf("The Given Number %d is NOT Palindrome",num1);
	}
	} else {
	printf("The given %d number is not a five digit number!",num1);
	}
	return 0;
	}

view raw palindrome.c hosted with ❤ by GitHub

Sample Output

Palindrome number or not

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C Program Examples

palindromic number in c

C program to Demonstrate the Recursive function.

C program to check whether a given 5 digit number is palindrome or not

Problem Statement

Solution

The Program

Sample Output

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