C program to check ODD or EVEN

 Write a C program to find whether the given number is odd or even.

#include <stdio.h>

int main() {

    int num;

    printf("Enter an integer: ");

    scanf("%d", &num);

    // true if num is perfectly divisible by 2

    if(num % 2 == 0){

        printf("%d is even.", num);

        }

    else{

        printf("%d is odd.", num);

        }

    return 0;

}

Enter an integer: 7

7 is odd.

In the program, the integer entered by the user is stored in the variable num.

Then, whether num is perfectly divisible by 2 or not is checked using the modulus % operator.

If the number is perfectly divisible by 2, test expression number%2 == 0 evaluates to 1 (true). This means the number is even.

However, if the test expression evaluates to 0 (false), the number is odd.