Sliding Window Sum

Code

#include <stdio.h>

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