CODE

public class Solution {
  public int[] MaxSlidingWindow(int[] nums, int k) {
    List<int> maxPerWindow = new List<int>();
    for (int i = 0; i < nums.Length; i++)
    {
      int max = -9999;
      if ((i + k) > nums.Length) break;
      for (int j = i; j < i+k; j++)
        if (nums[j] > max) max = nums[j];
          maxPerWindow.Add(max);            
    }
    return maxPerWindow.ToArray();           
  }
}