CPP

sliding window c++

int maxSum(int arr[], int n, int k)
{
    // Initialize result
    int max_sum = INT_MIN;
  
    // Consider all blocks starting with i.
    for (int i = 0; i < n - k + 1; i++) {
        int current_sum = 0;
        for (int j = 0; j < k; j++)
            current_sum = current_sum + arr[i + j];
  
        // Update result if required.
        max_sum = max(current_sum, max_sum);
    }
  
    return max_sum;
}