Sliding Window Sum

Code

#include <stdio.h>

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

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