Sliding Window Sum

Code

#include <stdio.h>

void sliding_window_sum(int arr[], int n, int k) {
    // Your logic here
    int sum,dup=0,j=0;
    int arr1[n-k+1];
    for(int i=0;i<n-k+1;i++){
        sum=0,dup=k,j=i;
         while(dup >0){
            sum=sum+arr[j];
            dup--;j++;
         }
         arr1[i]=sum;
         //printf("%d ",arr1[i]);
         j=0;
    }
   for(int i=0;i<n-k+1;i++){
    printf("%d ",arr1[i]);
   }
}

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