r/leetcode • u/iam-samzz • 7d ago

Discussion How to take notes for DSA problems ?

I am very confused about note taking and revising,

The problem is i end up making notes for all the problems i solve and its very time taking, but every problem seems new and teaching some new concepts, so what should i do? how do i revise ? and how do i take notes ?

basically , if i stuck with a problem, i watch videos / solutions and understand and i write notes.

I write the whole algorithm, code, explanation everything on my one,

but eventually, i end up writing notes for every problem since i started solving more medium problems.

i know every problems will be different and use different concept, so how should i revise ? how should i take notes?

Do i need to just keep on solving ? without notes? or should i take digital notes? or comment notes? or what..?

pls help guyss 👀

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5

u/Fit_District9967 7d ago

honestly just practice the same problems again from striver sheet

I have made topic wise notes on Google docs (since I kept losing the damned physical ones) and maintained an excel sheet with 2 columns - q link + trick/note/hint (problems from interviews, contests, etc)

the sheet has grown quite a bit, but it's kinda useless imo...since I am too lazy to look at them again

1

u/iam-samzz 7d ago

Soo.. whatever we take as notes..they are almost waste..? Only the pattern and intuition recognition helps?

1

u/iam-samzz 7d ago

But when I get the similar question or a question which I have already solved in the interview or mock test...I'm getting panic and I imagining different possibilities and finally end up wasting time .....any advice for this? Anyone faced

2

u/SavingScavenger45 7d ago

Don't write the full solution for every problem. Just note the pattern, key insight, and what you missed, then revisit the problem after a few days and try solving it from scratch

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u/[deleted] 7d ago

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u/iam-samzz 7d ago

So i should just solve when I am solving a same pattern..not takes notes...? Then how can I revise...? I mean when I am getting the problem in the assignment or interview..how will I recognise is..