So recently I gave a mock interview and I was asked this famous problem https://leetcode.com/problems/number-of-islands/\nAs a follow-up question, I was asked: \n**What is the maximum internal stack space that can be taken up when you are performing DFS on the matrix?**\nI gave an answer but I don\'t think it was correct. Can someone come up with an answer to this (along with an explanation)?

So recently I gave a mock interview and I was asked this famous problem https://leetcode.com/problems/number-of-islands/\nAs a follow-up question, I was asked: 