How many Leetcode questions should you do?

FAANG Coding Interviews / Data Structures and Algorithms / Leetcode

[@GregHogg]

Master Data Structures & Algorithms For FREE at AlgoMap.io!

[@jackwatt8988]

Getting good solutions to a few easy questions is also better than getting non-optimal solutions to many easy problems. I solved the 2 sum problem in less than 30 seconds(faster than 7% of all users). Each time I made my code run faster required learning more than I would have by just going on to the next easy problem and solving it in the easiest but also non-optimal way.

[@abaidanwer8962]

I am currently in second sem CS AND I HAVE DONE 30 EASY QUESTIONS IN C++

[@xerxes7138]

nice

[@sonicrushXII]

In only second sem? wow

[@ironbutterfly3701]

I did just 10 hard problems- and nothing else. Took about 30-40 mins for each. Before interview at Amazon.

[@maxDude100]

How'd it go?

[@ironbutterfly3701]

@@maxDude100 I got in, this was 7 years ago for L7 SDE

[@Stickman-rz9nu]

97 medium questions done 👾

[@vinayakk2745]

Easy - 30 Medium - 11 Hard - 1 I started recently, have learnt only linked lists and stacks for data structures (apart from arrays), aiming for 100 questions total before august

[@GregHogg]

That's awesome, thanks for sharing! Update me in August!

[@vinayakk2745]

@@GregHogg sure, will do!

[@vinayakk2745]

​@@GregHogg Hey! Here for the update It's been ~70 days since the comment and here's my progress Easy - 70 Medium - 64 Hard - 8 Had to watch solutions for most of the hard questions I did. I've managed to learn data structures like queues, binary trees, BSTs, heaps and hashmaps in the meantime. Currently learning tries.

[@bhargavgadde7068]

East 125 current 70 hard 5

[@12371eric]

I just cracked 100 questions. Mostly mediums, here's to another 100 😭

[@youz8260]

How long it took you?

[@LinhNguyen-nh8oq]

@@youz8260I also have done a bit more than 100 question. I did it in 5 months, each week I try to do 5 problems and keep the medium problem percentage about 50%.😅

[@xingyuxiang1637]

I practice for the sake of understanding recursions. That is the main difficulty because I know that games and greedy problems are unimportant at the moment. One is for a specific industry. Another one is simply wrong. However, all CS students know that a recursive solution is associated with a non-recursive solution. And it is so rare to see people building the graph without recursions. So, this boils down to one single question for me: how to understand postorder traversal, or the return statement after recursive calls? The semantics depend on the termination statement. There are some. The shortest is if not root, which steps on null and is discouraged; the second one is if it is a leaf node, then return, this makes much more sense in English but is also rarely seen on Leetcode, people do that with they recur on math problem; the third one is from Greg who uses multiple states of a node. The important thing is that when there is a return statement after a recursive call, it returns to the caller of the function, which is also linked to the current node, which is rare in intro CS courses. However, the best way is to sort out how to build the graph because a non-recursive solution exists. If it involves highly specialized math, then simply practice recursion for the RecursiveAction API.

[@arshiaalidosti8818]

Wow, thank you.

[@soldier_boy_16]

Can you pls suggest the topic necessary as well ❤️. I have solved roughly 250 but struggle with graphs and trees.

[@neerajkhanduri2860]

Mine- Easy - 87 Medium - 61 Hard - 8 Contest rating -1657 (attended 3 contest)

[@GregHogg]

That's great!

[@vinayakk2745]

That's great bro, are you a third year student?

[@suryanshbajpai8238]

What was your best rank in those 3 contests

[@ganiyevuz]

Mine currently is Easy 69 Med 11 Hard 1 Now i need to solve hard ones more

[@MikeWmusic10]

Is this all just for prepping for the coding questions at interview? I can't imagine actually putting this on a resume/cv

[@GregHogg]

Yes prep. I advise against putting it on your resumè

[@warguy6474]

interviewers actually dont like it when they know you did a lot of leetcodes lmfao

[@Aashishbedi0]

Mine currently: Easy 31 Medium 21 Hard 0

[@GregHogg]

Awesome!

[@vamsivardhan237]

2nd sem done, 150 ez , 50 mid problems 5 hard

[@VigneswaraaMS]

Easy-50 Medium -6 Hard-0 Now anyone tell me. What I want to do? I just solving array string problems using Javascript .I didn't start any DSA problems. Can I use Python for solving DSA alone. Somebody give your opinion. 😊😊 I have to go with medium problem right??

[@vaibhavsharma2060]

93 rn 4 hard 46medium 43 easy

[@crazyopi1814]

299 qs are u done today's question? 😐

[@astronautgamer34]

90😢 all easy

[@pattube629]

Resources for MEAN stack

[@mlgdigimon]

What’s an LC

[@maitri1656]

leetcode

[@clashjuninz7177]

i currently finished my second year. I have completed 250 medium and 450 easy and 10 hard questions on leetcode.. i completed it in 60 days..is it okay or should i change from solving easy to hard.. please tell anyone