Sliding Window Sum

Code

#include <stdio.h>

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

	for(int j = k; j < n; j++){
		sum = sum - arr[j-k] + arr[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;
}

Solving Approach