LRU cache leetcode | leetcode 146 | LRU cache leetcode python | leetcode coding challenge day 24

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On line 47, it should be self.hash[ key] = node

kentsang

Can we use list in python instead of DLL?

technotutors

this is not order o(1) since u used while loop

arnabpersonal

Thank you for the explanation! Can you please do other top interview questions from leetcode? Your explanations make it so much easier to understand.

Lerahul

Why do lines 25-30 in a while loop? Couldn’t you use an if statement?

kamariwright

line 47 - self.hash[hash] - why hash inside the bracket?

sbrahma

Could have explained more properly with the double linked list diagram, anyways good explanations overall

vaibhavkumar

I believe there are a few cases where this code may fail(I maybe wrong). In the get function how does your code deal with the scenario where node maybe the head of linked list. The head is not being updated and it may cause errors as node is moved to tailbut still stored as head.

ayushganguli

where is the code? nothing in description

karthikkumaresan

in line 12, why head of dll is (-1, -1) ?

TheArbaaz-rntq

Nice explanation, can you share at what device have you recorded the Video?

sudhirkumarshahu

Great Video!
Btw, what do you use to write on screen?

rahil_rehan

Hi,

I have a question here why didn't you used the orderedDict here?
Any specific reason?
If in interview you have just 45 mins and 2 problems to solve will you be able to complete it?

Also I have a question, if I use OrderedDict will it not solve the problem in O(1)? Is it not acceptable in interview?

Awaiting for your reply

taram

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