Sliding Window Sum

Code

#include <stdio.h>

void sliding_window_sum(int arr[], int n, int k) {
    // Your logic here
    for (int i = 0; i < n; i++){ 
        int sum = 0; 
        int index = 0;
        for (int x = 0; x < k; x++){ 
            sum = sum + arr[i + index]; 
            index++;  
            if ((i + index)> n){
                break;
            }
       }
        if ((i + index)> n){
            break;
        }
       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