47. Array Manipulation-ii

Question.3

A developer calls a sliding window function with n = 4 and k = 6:

void sliding_sum(int arr[], size_t n, size_t k) {
   for (size_t i = 0; i <= n - k; i++) {
       int sum = 0;
       for (size_t j = i; j < i + k; j++)
            sum += arr[j];
       printf("%d ", sum);
   }
}

What happens when k > n?

Need Help? Refer to the Quick Guide below

Select Answer

The function prints nothing — the loop condition n - k is negative, so it never enters
The function prints the sum of all n elements
n - k wraps to a huge positive number, and the loop runs billions of times
Compilation error — size_t cannot be subtracted