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 i = 1; i <= n-k; i++){
        sum = sum - arr[i-1] + arr[i+k-1]; 
         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