how to implement sliding window in csharp

main.cs
public static int MaxSumSubarray(int[] arr, int windowSize) 
{
    int windowSum = 0, maxSum = int.MinValue;

    for (int i = 0; i <= arr.Length - windowSize; i++) 
    {
        windowSum = 0;

        for (int j = i; j < i + windowSize; j++) 
        {
            windowSum += arr[j];
        }

        maxSum = Math.Max(maxSum, windowSum);
    }

    return maxSum;
}
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The code above implements a sliding window algorithm to find the maximum sum of subarrays of a given array. The MaxSumSubarray method takes in two arguments: arr (the input array) and windowSize (the size of the sliding window).

The outer for loop iterates through the array, creating subarrays of size windowSize. The inner for loop calculates the sum of each subarray. The maximum sum found is stored in the maxSum variable and returned at the end of the function.