Sliding Window Sum

Code

#include <stdio.h>

void sliding_window_sum(int arr[], int n, int k) {
    unsigned int ix = 0;
    while (ix + k <= n) {
        int val = 0;
        for (int i = ix; i < ix + k; i++) {
            val += arr[i];
        }
        printf("%d ", val);
        ix++;
    }
}

int main() {
    int n, k, arr[100];
    scanf("%d %d", &n, &k);
    for (int i = 0; i < n; i++) scanf("%d", &arr[i]);

    sliding_window_sum(arr, n, k);
    return 0;
}

Solving Approach