Sliding Window Sum

#include <stdio.h>

void sliding_window_sum(int arr[], int n, int k) {
    // Your logic here
    for(int i=k-1; i<n; i++)
    {
        int sum=0;
        for(int j=i; j>(i-k); j--)
        {
            sum += arr[j];
            // printf("%d %d\n",i,j);
        }
        printf("%d ",sum);
    } 
}

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;
}