<> front
I think so. I think most of the roast people have roast on the Internet
If you don't know what happened in this session , And want to know what happened to arouse the group's anger
You can go to the Blue Bridge Cup , Found on 2022 year 4 month 9 A few days before the th , Or search “ carpooling ”
You can see how many people can be embarrassed to cheat
<> in
Seriously, let's talk about my summary
I don't think it's done very well , Vaguely
oh dear I still don't want to explain the problem Tell me some knowledge I think you may have （ Because that's what I did ）
Prefix and （ A naked question ）, But in fact, the last question is to query the sum of intervals, which can also be understood as the prefix and sum in the forest （ I hope it's right ）
I think the tree climber may be an expectation dp,dp It's a weakness , No direct practice g Yes , It seems that he gave a special judgment and tried to cheat some points
There is a dichotomy , I think the idea is also very simple , But when you finish debugging , feel dev There is a problem with this version of
It's him lower_bound and upper_bound I always have unexpected results （ Or I forgot how to use this thing ）
Then I handwritten two points, it felt easy to make mistakes , Just put it first , First, later , I came back and found there was no time , I didn't hand in this question
There is also a simulation problem , It's a circle , Feel save the order , It should be ok if you run it again
The last piece I ran , When searching for connected blocks, you can finish the prefix and , The edge is bidirectional, one positive and one negative , Because there is no contradictory solution , So no matter which way you go , The absolute value of the distance between two points is equal
You can find the representative yuan when looking for the Unicom block , Deal with this
（ I don't know, right , Anyway, I wrote this in a daze at that time , The samples were handed in directly ）
What? You asked me why I didn't fill in the blanks ?
How cheap it is to fill in the blanks , I got an answer and handed it in directly / open the mouth and show the teeth
Anyway, I have time to fight all the violence , But I don't know whether violence is right or not
I didn't seem to wake up , Random answer / awkward
<> after
Anyway , This year's Blue Bridge Cup is over , I won't fight again , I feel like I've been cut into leeks
“ It's hard for me to say , On the one hand, the topic is really difficult , On the other hand, I don't want to face the fact that I am more backward than before …”
Technology
Daily Recommendation