Sliding Window Sum

Code

#include <stdio.h>


void sliding_window_sum(int arr[], int n, int k) {
    int res[100];
    int end=k;
    for(int i=0; i<(n-k+1); i++){
        int sum = 0;
         for(int j=i; j<end ; j++){
            sum+=arr[j];
            }
        res[i]=sum;
        end++;
    }
   for (int m=0; m < (n-k+1); m++){
        printf("%d ",res[m]);
   }
}

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

 

 

 

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Input

5 3 1 2 3 4 5

Expected Output

6 9 12