how to make a code that tells me if a number is odd or even code example

Example 1: how to check if number is even

if ( n % 2 == 0 ) {
	// n is even
}
else {
	//otherwise odd
}

Example 2: check odd number

#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;
}