Блог пользователя Maxxx239

Question about system testing
Автор Maxxx239, история, 2 года назад, По-английски

Why system testing on Div2 rounds is fast, while system testing on Div.3 and Div.4 are so long? Is it Div.2 rounds specific or the reason is the number of submissions (on Div2 it's probably smaller than on Div3-4 ones)?

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It's because there's about a billion submissions on the earlier problems from newbies and unrated users. Codeforces is falling.

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12hr hacking phase causes one layer of delay. Extra preparation (filtering hack tests, then adding them into the final testset) adds the next layer. System testing itself, with the amount of test data usually doubling/tripling the original, adds the final layer.

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Honestly this open hacking idea seems to fall apart especially in the last month or so. In my opinion the test cases shouldn't be that loose so you require 100 additional user submitted cases. And they should do away with the cliche hash TLE stuff. Only gives inconvenience to those who wanna upsolve.

Look at yesterday's Div 4 even. It has been in testing for hours. T_T

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