My code without stack passes all test cases logic in the code is pretty simple whenever consecutive plants die you increment the number of days and compare it with max consecutive deaths if max is less update it

here's the code

using System; using System.Collections.Generic; using System.IO; using System.Linq; class Solution {

static void Main(String[] args)
{
    int n = Int32.Parse(Console.ReadLine());
    string[] h1_temp = Console.ReadLine().Split(' ');
    int[] h1 = Array.ConvertAll(h1_temp, Int32.Parse);
    int min = h1[0];
    int mdays = 0;
    for (int i = 1; i < n; i++)
    {
        min = Math.Min(min, h1[i]);
        if (h1[i] > h1[i - 1])
        {
            int l = h1[i];
            int k = i+1;
            int day = 1;
            while (k < n && min < h1[k])
            {
                if (h1[k] <= l)
                {
                    l = h1[k];
                    ++day;
                }
                ++k;
            }
            mdays = Math.Max(mdays, day);
        }
    }
    Console.WriteLine(mdays);

}

}