Day 3: Coding Interview Prep With ex-Microsoft Software Engineer

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[omthecoder]

Sir make c++ series for beginners with DTS and algos. Please bhaiya .😊😊😊

[saurabhjain]

Nice video. A few comments for code optimisation and readability
1. The if else conditions in the first while loop could be handled by all the statements in else itself. There is no need to check for if res == NULL.
2. You can handle the next two while loops in the first while loop itself (totally only 1 while loop). When you are evaluating sum you can use ternary operator to check if node is null then use 0 otherwise use node->val or else you do this in better way. You can use implement one more method in your Wrapper (actually should be called Helper/Utility) class, let say getVal which will the the value of node if node is not null and if null just return 0.
3. You can add one entry in your hashmap NULL, NULL so whenever get prev is called on NULL node NULL is written and everything would be taken care of.

[toxicdesire]

OMG thank you so much for caring about 360p population!
Suggestion - Please do problems on graphs, shortest paths, strings,
bitwise operators etc.

[joshuamarcano]

Linked Lists are one of the trickiest ADT's to work with. I have been spending a lot of time with them. Circular Singly Doubly everything. Even the easy questions can be tricky

[Rohitsingh]

Rachit i just love your content and i know while working in TR you would be so busy and i am grateful of you posting such knowledgeable stuff here, but can you please consider starting a C++ series ?

[kunal_chand]

My Approach to "Add Two Numbers II" :

Iterate through List 1 and calculate the number.
Iterate through List 2 and calculate the other number.

Add them and present its digits in a linked list format.
Return the final link list.

[sohamsen]

Can we use stacks?
Like storing the values of each nodes in two stacks, adding them and then storing the resulting digits into another stack and then create a new linked list and just populate it in the linked list.
It would take a bit of space though, O(n) I suppose.

[GajendraSingh]

Please make some more video on linkedlist. Thanks you very much rachit. these video are very helpful.

[hargovind]

Really Loved this one, you literally explained each and every step and complete thought process using that another untitled file!

[aniketrajani]

Why do we need to create a wrapper like structure, we can also do the same thing while traversing the linked list and we can store the previous pointer for each of the nodes, the purpose of using wrapper is still not clear.It would be good if u can explain me.Thanks in advance

[vatsalhirpara]

Great approach for solving! Btw which software do you use to record webcam and screen simultaneously ?

[sunnykumarjaiswal]

Hey...Rachit you are doing a great job your videos are very helpful. please make videos on how to get internship in companies like microsoft, google, goldmansachs etc offcampus. What are the process, what are there expectations from interns, how there resume should look like..

[sriramsudalairaj]

But 0+278=278 right then why it displayed a error?

[sumeetbhujang]

Hey Rachit, I guess we could have also used Stack to accomplish the same task and the space complexity would be the same..

[Rubal]

Some more videos about LL would help us a lot.. thanks for doing the good deed👍

[adarshsharmanit]

Please continue interview preparation series

[raihanmdsiqbal]

Please make more kind of such videos at a faster pace.

[SauravKumar-kjuu]

hello rachit. plz, when u suggest ur video for certain topic, mention video link in description. Love ur work. thank u

[mridul]

I have solve that question before but to take a unordered map to get the previous value of listnode was the smart move.. Show how stl can be use smartly in problems

[shubhamk]

you are amazing and doing a very good job