About the eighth session of the Wave Cup (Shandong province race)

a summary of the eighth Annual Wave Cup

The Wave Cup was the first big event I took. My team is also the only 16 level in the name of a formal team to participate in the team, although there is no shame of the iron, got the bronze, but this ranking at the end of the bronze also shows that I still have many problems, and did not play the ideal strength.

Overall analysis

According to the previous team training, my positioning should be the main tap of the code, and I need to according to their own experience, quickly browse the topic, on each question of the required algorithm type to locate, clear which topics in my team's ability, and so on, lead our team to do the rhythm of the group. At the same time make full use of their typing speed, do water title stability of the advantages of quick solution to the water problem, lay the foundation of the team's problems, and stabilize the team's morale.

But in this game, I even did not read all the topics, at the same time did not lead a good team rhythm, the course of the game did not even see the list of questions, but let another team leader to do the problem, the result of the collective card in the capacity of the pit problem, this is the biggest problem of this competition.

In the beginning of the game, the reverse reading of the teammate should be a little nervous, in all the topics did not read, at the same time the K problem has not fully understood the case is ready to do K, at the same time I did not stop, and did not even read the question, but went to follow a K problem, leading to water problems did not find the first time, at the same time, when the teammate gave up the K problem, I go to do the G problem, due to the wrong topic, cause me to 1e8 + 7 modulo was wa,debug for more than half an hour, wasted a lot of time, at the same time mentality has been affected, and eventually led to the early stage of the three water problem AC we have no progress.

Beginning the middle of the game began to return to normal mentality, made three water problems, but I still did not see the list, also did not read the question, but in the next think K, teammates in Do J question also did not go to follow up reading question thinking, lead teammates use completely wrong algorithm to do J problem, waste a lot of time.

At the end of the game, I found out about the problem with the J problem, take over the topic, mentality or by the topic before the impact of the explosion int the answer is not to think carefully, but also led to WA a, four after the topic, I still did not see the list, also did not read all the topics, and finally let the team-mates on C problem, Did not insist to do oneself already have the idea of k problem, lead to teammates finally did not do out C problem, the game later no gain. Led to the end of their ranks at the end of the bronze.

Single Problem analysis

A: The Lucent Cup was stuck on game theory, after the Lucent Cup has to look at the foundation game theory, understood some basic game theory question the revelation, but to the game theory systematic practice was I arranges in the summer vacation, this time did not make out cannot calculate own question, but is very regrettable.

B: During the game just listen to the team-mates said the question, simply did not think, belong to can do the topic, did not do is a regret.

C,d: The biggest problem with this competition is out here, in the latter part of the time completely spent on these two problems, the combination of several types of topics have contact but never thought to arrange time to understand, belong to their own problems, but the problem of number theory may be later or to the study of the numbers of teammates.

E: The problem of giving up directly ...

F: Test the ability to read the topic of water, just started a rash or wa a one, and finally threw to the team-mates to analyze the topic of AC;

G: By this topic wrong mentality problems, but I also have problems, not self-confidence, the previous topics are 1E9 + 7 modulo and I in 1e8 + 7 modulo is WA at the same time check the code does not appear problems should go to the referee Group to submit the question or first put. Too much time has been wasted on this problem.

H: High-level graph theory, beyond ability.

I or eat not seriously read the title of the loss, teammates read this problem, directly let me knock a matrix fast power out, I glanced at the topic found is Feponac series, also did not go to think too much, the final matrix of fast power to the half of the time to see the input of the data range found the problem, is actually a find the law of water problems.

J: Teammates just started with the binary optimization of the full backpack to do, do not understand what he thought ... And I read the topic is very clear this is not to do I did not stop him, I do not know how I think, this question is a thinking water problem.

K: The official said is a very difficult DP, but feel I should be able to make, finally the computer to the teammate to play the question finally did not insist to try, calculate a regret.

Summarize

1: Not confident enough to be the topic WA a few mentality on the problem afraid to try.

2: The algorithm is not mastered enough, there is a misuse of the algorithm,