C Function to Check Number is Palindrome or not

26 Sep 2022 Balmiki Mandal 0 C Programming

Check if a Number is Palindrome

To design a function to check if a given number is a palindrome in C, we can use the following algorithm:

  1. Reverse the given number.
  2. Compare the reversed number with the original number.
  3. If the reversed number is equal to the original number, then the number is a palindrome.
  4. Otherwise, the number is not a palindrome.

C Function implementation of the above algorithm:

C Programming
int isPalindrome(int number) {
  int reversedNumber = 0;
  int temp = number;

  while (temp > 0) {
    int remainder = temp % 10;
    reversedNumber = reversedNumber * 10 + remainder;
    temp /= 10;
  }

  if (reversedNumber == number) {
    return
1;
  } else {
    return
0;
  }
}
 

This function takes an integer number as input and returns 1 if the number is a palindrome, and 0 otherwise.

How to use the isPalindrome() function:

 C Programming
int main()
 {
  int number;
  printf("Enter a number: ");
  scanf("%d", &number);
  int isPalindromeResult = isPalindrome(number);
  if (isPalindromeResult == 1) {
    printf("%d is a palindrome.\n", number);
  } else {
    printf("%d is not a palindrome.\n", number);
  }
  return
 0;
}
 Output:
 
Enter a number: 121
121 is a palindrome.

Further Reading:

Program to check whether the given string is a palindrome or not in c

write a program to print palindrome numbers in 10 array elements.

Palindrome number in c programming

Write a c program for 10 elements palindrome number

Design a function to check the given number is Palindrome or not if Palindrome return 1 else 0

Writing a C Program to Print Available Palindrome Numbers between 50 to 100 using a While Loop

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Note: If you encounter any issues or specific errors when running this program, please let me know and I'll be happy to help debug them!

BY: Balmiki Mandal

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