yooz's blog

Is it better to constantly seek new problem or redid problems we can't solve a month ago?
By yooz, history, 23 hours ago, In English

Exactly the the title says, I currently keep track of the problems I can't solve. However, even though I had done more than 50 1700 rated problems sometimes I still struggle... so should I redo the problems I can't solve or just solve new problems until I'm comfortable with this rating? Thank you!

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23 hours ago, # |
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you can try new problems. By the way,watching nailong can help a lot !

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22 hours ago, # |
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Here's what often happens. You pick some problems and start working on them. The ones that are easier to you you will solve. The ones that you don't immediately solve you just kind of... leave be. Or maybe you used some kind of problem recommender and rerolled it multiple times, making up dubious excuses to justify skipping the problem, until you reached a problem that was kind of easy for you.

Some of you are wondering why you are still green after solving 100 problems with difficulty, let's say, 1600. But can you honestly say that this is a random sample of 100 problems with this difficulty? Or are these 100 problems in fact heavily biased towards the things you already know? Or does it mostly contain problems that are actually way easier than 1600 but have this rating because of some quirk in the difficulty rating system (for example, I don't trust the ratings of hard problems from Div. 2 and Div. 3 only contests)? Hard to tell, but in many cases it's hard to believe that they are uniformly distributed.

So you should usually read editorial if you cannot solve a problem at last.

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