Summary of exam on May 17, 2022

Examination arrangement

7:30~7:40

First I read the question , I found that I had done the original problem

7:40~8:00

T2 You can do it directly $O(n\sqrt{n})$, So I hurriedly wrote , I feel no problem after writing

8:00~8:20

T3 No idea , First wrote a violent pressure

8:30~9:00

Suddenly thought of being able to tolerate , Then it suddenly became clear , So I hurriedly wrote , After writing, I took a picture with violence. I don't think it's a problem

9:00~9:40

Write T4, Although I have done it , But there are more details , I wrote for a while

9:50~10:10

T1 First wrote a violent

10:10~10:30

Thought about it for a while , Come up with a $O(n^2{m}^{2}logn)$ How to do it , I can't feel it
It's changed to $O(n^{2}mlo{g}^{2}n)$ How to do it , But it doesn't seem to pass , But it can only be written like this

10:30~11:20

Quite a lot of details , It took half a day to finish , But it has always been out of line with violence

11:20~11:50

having dinner

11:50~12:10

Found the error , Then it was photographed

12:10~12:30

Check , By the way, I took photos of the last three questions