Скоро Codeforces Round 1133 (Div. 1, Div. 2)! Регистрация здесь.
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Some lingustic analysis of Petr's blog can give us adequate rating of CF contests.
When I read the title I was afraid that those "tedious" problems refer to Marathon24, but fortunately it doesn't :). And results are still frozen.
"n extremely tedious O(nlogn) data structure problem E that did not require anything more complicated than a stack and binary search, but needed more than an hour to implement and had a lot of possible plus/minus one errors to make." — I can't agree more :p. Though this problem had this nice feature that it was taken from "real life". I'm sure that almost all of us faced that problem during our lifes :D.
What's the reason behind hiding results of Marathon24 for so long when there's a lot of people who are eagering to know whether they advanced or not?
I don't know, I haven't got any influence on that :P.