Example: Palindrome Number Check using For Loop in C

// Palindrome Number Check using For Loop
#include <stdio.h>

int main() {
    int num, originalNum, reversedNum = 0, remainder;

    // Step 1: Prompt user for input
    printf("Enter an integer: ");
    scanf("%d", &num);

    originalNum = num; // Store the original number for comparison later

    // Step 2: Reverse the number using a for loop
    // The loop continues as long as 'num' is greater than 0.
    // In each iteration, the last digit is extracted and appended to reversedNum.
    // 'num' is then updated by removing its last digit.
    for (; num > 0; num /= 10) {
        remainder = num % 10;          // Get the last digit
        reversedNum = reversedNum * 10 + remainder; // Build the reversed number
    }

    // Step 3: Compare the original number with the reversed number
    if (originalNum == reversedNum) {
        printf("%d is a palindrome number.\n", originalNum);
    } else {
        printf("%d is not a palindrome number.\n", originalNum);
    }

    return 0;
}