Man of few words said, the first wave% ztc., Deaf and hdhd giant guy
A catch pigeons
Or take a full minute, but pushed for a long time
like other people's formulas are \ (the n-* (-the n-1) / 2 \) ? ? ? ? I was too weak, pushed nearly half an hour to launch a very complex formula (but just to avoid the explosive situation in addition to long long after the first ride), I said I was a blessing in disguise it qwq
next A problem to be controlled in 50min- ah qwq
B Laidulaile
To get the title look ignorant force, even violence will not fight what the hell
positive solution: the operation of a conversion to operate two (vector storage), for (A \) \ number of columns in each \ (A_i \) corresponding operations sorting, repeat the operation is converted into operation two three, reordering wave, the former is selected from the m (if smaller than itself Select m)
the following are a few points to note:
1. If ty == 3 but if y == 1 of we will not choose thisMembraneMagic, as it results after the use of the same lexicographic order becomes large
according to the principles of the greedy digital adder plus some selected large, it is necessary to sort (out of it into a different order of operations different 3)
Ben C God and konjac
Real name diss deaf giant guy exam has been out of the question that he is the behavior of water fAKe
Called \ (O (N ^ 2) \) violence, then start thinking about how to optimize, not enough time to rush the last paid a KMP (and glorious WA20)
However KMP This question and not a cent relationship (and data over water, \ (N ^ 2 \) could get 90 points qwq)
binary + range and hash prefix: quickly determine common string, as only may AGCT fucks (I also dementia in the examination room, and did not see this prompt think of how to use)
Total Score: 100 + 0 + 20 = 120, rank23, I'm so weak ah qwqqqqqqqqqqqq
Water problems do little faster next time, do not always between B, C tangled what to do first, violence is very important, should first take full points violence, if violence is expected to play nice score is 100 + 40 + 20 = 160
(actually violent score 100 + 40 + 90 = 230qwqqqqqqqqqq, ztc. too much water out of the data is)