Sliding Window Sum

#include <stdio.h>



void sliding_window_sum(int arr[], int n, int k) {
    // Your logic here
    char result[255];
    size_t pos = n-(k-1);
    for (size_t i=0; i<pos; i++){
        int sum = 0;
        for(size_t j=i; j<k+i; j++){
            sum += arr[j];
        }
        if (i==0){
            sprintf(result, "%d", sum);
        } else {
            sprintf(result, "%s %d", result, sum);
        }
    }
    printf("%s", result);
}

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;
}