Number of Islands - LeetCode 200 - JavaScript

Step by step walk through of the solution to the popular Amazon coding interview question, Number of Islands.

LeetCode 200

JavaScript

0:00 Intro
0:59 Explanation
7:29 Code

#softwareengineering #javascript #leetcode

[ajaysrinivas]

This is by far the most underrated and underwatched playlist I have ever come across. You deserve more. Keep it up. Great set of videos mate : )

[weipengjiang]

This is best channel for DnA; the explanations and executions are spot on. Thank you for putting out great content.

[basseyjennifer]

Thank you so much, your tutorials has helped me greatly with recursions

[danielsampar]

Great explanation. Saw someone trying to do it with a stack instead of recursion and I didn't understand shit. Recursion is more akin to the thought process when we humans try to count the islands looking at the matrix. Thank you!!

[notionSlave]

if you are returning nothing in dfs function, isnt count + undefined mean NaaN?

[pushpakkurella]

Thanks much. As the grid is available for the dfs recursive function, we can remove the grid argument right I mean we don't have to pass it right?

[johnacsyen]

Great explanation. What is the software you used for the sketch? TIA

[jananadiwedagedara]

Maybe this is a stupid question, but why do we visit the same we've visited earlier? timestamp 4:09

[ivanprokic]

missing grid[row] === undefined check for example 2 input to run. Nice example though.

[dragonborn]

Bruh this is a medium problem? Im so fked lol