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❮ C Typedef C Exercise Example99 ❯

C Language Example - Palindrome Number Check

C Language Examples

Check whether a number is a palindrome.

Let n be any natural number. If the reverse of the digits of n results in the same number n1 as n, then n is called a palindrome number. For example, if n=1234321, then n is a palindrome number; but if n=1234567, then n is not a palindrome number.

Example

#include <stdio.h>

int main()
{
    int n, reversedInteger = 0, remainder, originalInteger;

    printf("Enter an integer: ");
    scanf("%d", &n);

    originalInteger = n;

    // Reversing
    while( n!=0 )
    {
        remainder = n%10;
        reversedInteger = reversedInteger*10 + remainder;
        n /= 10;
    }

    // Checking
    if (originalInteger == reversedInteger)
        printf("%d is a palindrome.", originalInteger);
    else
        printf("%d is not a palindrome.", originalInteger);

    return 0;
}

Running Result:

Enter an integer: 12321
12321 is a palindrome.

C Language Examples

❮ C Typedef C Exercise Example99 ❯