Blind 75 Leetcode Java - All Questions Solved

Welcome to the ultimate guide to mastering the acclaimed Blind 75 leetcode technical interview questions. With the tech industry's growing demand for intricate problem-solving abilities, and the popularity of top tech jobs, this comprehensive walkthrough ensures you're armed with the knowledge to excel, as I accidently created world's longest educational video.

Each section is time-stamped so, use it for whatever question you want the answer to. Dive into fundamental topics such as "Two Sum" and scale to advanced segments like "graphs", "trees", "heap" and many more.

For every single problem, I will show which are the companies that have asked that question. After that I will explain problem statement in depth, explain the brute force solution, and from there we will make improvements to our solution, ultimately ending with the optimal solution at hand. Once we get there I will also explain the time and space complexities. Lastly I will show the entire java solution for the problem.

I believe in democratizing education and ensuring everyone has an equal shot at acing their technical interviews. This marathon session is a testament to that belief. I hope this video empowers you to shine in your next interview.

Join me in what I believe is YouTube's longest educational video dedicated to technical interview preparation. Let's master these questions together and make a mark in the tech industry!
These are the questions I covered

Introduction: 00:00:00
Two Sum: 00:01:33
Best Time to Buy and Sell Stock: 00:12:00
Contains Duplicate: 00:21:27
Product of Array Except Self: 00:27:20
Maximum Subarray: 00:44:03
Maximum Product Subarray: 00:53:17
Find Minimum in Rotated Sorted Array: 01:05:58
Search in Rotated Sorted Array: 01:18:41
3Sum: 01:32:15
Container With Most Water: 01:52:23
Climbing Stairs: 02:06:55
Coin Change: 02:28:33
Longest Increasing Subsequence: 02:58:48
Longest Common Subsequence: 03:20:27
Word Break Problem: 03:52:51
Combination Sum: 04:15:15
House Robber: 04:37:25
House Robber II: 04:51:46
Decode Ways: 05:06:18
Unique Paths: 05:32:04
Jump Game: 05:43:33
Clone Graph: 06:03:03
Course Schedule: 06:18:41
Pacific Atlantic Water Flow: 06:39:47
Number of Islands: 07:01:10
Longest Consecutive Sequence: 07:19:04
Alien Dictionary (Leetcode Premium): 07:42:36
Graph Valid Tree (Leetcode Premium): 08:25:52
Number of Connected Components in an Undirected Graph (Leetcode Premium): 09:01:03
Insert Interval: 09:14:53
Merge Intervals: 09:34:11
Non-overlapping Intervals: 09:52:52
Meeting Rooms (Leetcode Premium): 10:07:31
Meeting Rooms II (Leetcode Premium): 10:16:56
Reverse a Linked List: 10:32:58
Detect Cycle in a Linked List: 10:40:48
Merge Two Sorted Lists: 10:52:06
Merge K sorted Lists: 11:02:54
Remove Nth Node From End Of List: 11:14:38
Reorder List: 11:25:03

In this video I was only able to put 1 to 44 questions.
So for 45 - 75 questions please check out part two of this video.

#leetcode #java #fullcourse #softwareengineering #techjobs #faang #googleinterview #amazoninterview #facebookinterview #codinginterview #sdevelopers #blind75 #crackingthecode #microsoftinterview #leetcode75 #array #binary #dynamicprogramming #graph #intervals #linkedlists #matrix #strings #tree #heap
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GitHub Repository for Questions solved so far:

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Here is a list of some of the awesome companies in the tech world:

FAANG,
Meta,
Facebook,
Google,
Amazon,
Netflix,
Microsoft,
apple,
doordash,
roblox,
stripe,
instacart,
uber,
lyft,
twitter,
linked In,
pinetrest,
bloomberg,
robinhood,
Goldman Sachs,
box,
two sigma,
byte dance,
tik tok,
air bnb,
nuro,
ui path,
oracle,
twitch,
data bricks,
waymo,
dropbox,
coinbase,
snowflake,
snap,
nvdia,
broadcom,
slack,
intel,
cisco,
indeed,
salesforce,
reddit,
wayfair,
okta,
splunk,
service now,
coursera,
square,
upgrade,
mozilla,
yelp,
unity,
ebay,
affirm,
stach adapt,
amplitude,
github,
wish,
brex,
etsy,
chime,
shopify,
amd,
GoDaddy,
IBM

[harshwardhanshetty]

Thanks i will start this from today only as i am on notice period and didn't knew about questions

[GadgetsTechinTelugu]

I love watching without knowing anything, but i want to try myself to do those can i get some suggest how to start and where to start learning please.

[SunilVerma-eunt]

i am way behind from others in dsa as a 23 passout i know how to build a restapi but i dont have enough knowledge and confidence in dsa. hopefully i will catch up and thankyou for you contribution in my journey.

[sumanthbs]

Great one sir, had one doubt, you have declared result variable in threeSum method that variable is local, and u r passing it to twoSum method and this method is not returning anything. How result variable in threeSum method got initiated.

result variable is local to threeSum method how this variable got initiated and returned

[sachinumendran]

Sir for placement drives, are these 75 problems enough or should I practice more problems? like doing more than 400 problems, is it time waste?

[shetysify]

People who have solved do you recommend watching videos or trying the problem first and then watch im new to dsa and need to prepare

[ankittyagi]

Java with dsa please implement in a project and make it upload on YouTube for a project preparation.

[devisri]

It would be nice if u add like why u using set why using map like exactly why this data structure and not others

[kasimsheikh]

Can we solve all this problem by using java8 features

[gyhuj]

why are there only 40 questions instead of 75? 😥