After the game think, this should be made 3 to 4 field questions, and finally only 2 out of the question.
First look at the game, the game began 10 minutes, his teammates came up with dy B title is a template title trie tree, then let mqy code, when the first post wrong place, the second time in 45 minutes pass. Read the list and found that most people had questions K, D title it was before, we are beginning to think these two questions. K title in the "strange loop" the key words, for a moment I thought of the construction done before a question also about the odd ring to use a loop length bipartite graph of nature must be an even number. However, I can not understand is immediately abandoned the idea, because this problem and bipartite graph looks like nothing to do. It now appears that as long as this idea a little too deep to think about this problem should immediately be able to make a great pity. K title like a long time have no idea (about one hour after the game), I had to go to D title. Before D dy also want to question, he had an idea to tell me, is this problem was converted to Euler path for Graph. I feel like is right, then did not think much to start yards, yards over 40 minutes only to find there is a problem, this idea is wrong.
Then an impasse for some time, probably in two hours time. dy proposed bfs violence can try to run about K questions, and then let the mqy code. Glanced standings, H and E questions are also questions a lot of people too, probably field questions 3 and 4, it took me a while to read a little H, understand the meaning of the questions, want to do to start from began to read about a 20-minute appearance, that this problem does not seem to go with the solution I have is knowledge, feeling points divide and conquer, something like a long cross. Then read E, it took 15 minutes to read the questions and the sample surface, and then think how to do, like 15 minutes seems to have no idea. mqy played bfs violence K title, but found that even very simple examples have not been, this idea is wrong. So we decided to give D and K, turn to do other problems. dy I opened the topic, I question is a geometry question, standings on 2,3 individuals too, he had the initial idea (there is a board can be set), and then went to knock on the machine board. I H and E did not want the idea for some time, then turn to think about the construction method D problem.
About 3 hours time, dy of the board I have set a good question, but it seems to have an output accuracy can not be subject to the requirements, he said, but also about the tone parameters. I still have not figured out D topic and ideas, and to re-look at H mqy title. I suddenly found that this problem seems to be half the answer, although there is no further idea, but certainly in this direction. Want five more minutes, we found a way to check, as long as the conduct some time dfs tree dp can be. I'll start on the machine code, in some places a little problem, mqy help me change a little bit and had a sample, pay once before. Closure list this time just five minutes. After that, dy I continue to tune a little problem, pay several times not been found. 40 minutes left when the three of us are beginning to think the constructor D problem. The remaining more than 20 minutes when dy presented like a viable construction method. Then mqy the machine to play, after five minutes, we found that this construction method is not feasible. Less than 20 minutes left, and I propose to either question about the violent transformation of K, plus a dfs try again, and then let mqy change the code before him, when about 2 minutes left in the changing for the better pay. dy I change the title, I rushed a bit. But the two issues did not last too.
Why just over two questions, I think the main reason is D and K of the game when it took too much time, many teams are K title field ten minutes before, and we are not thinking like a long time, it should be something I did not expect. D structure is not out of the question there is no way, but it takes a little time to take on (mostly wrong ideas before the time it takes). Since the first half of the excessive consumption, leading to the mid-tempo chaos, E and H to spend too little time. If more than half an hour to think about energy E should be able to get out. Teammates after the game found previously done similar questions Question C, but when the game did not go to C, because too few people had, and we have not had a simple question, mentality is not very good, and you missed it question.
In order to avoid later appeared again this time to control the rhythm of the problem, I think we should set a criterion. If there are a lot of people more than 10 minutes of check-out hit title, it took us 30 to 40 minutes no idea, then decisively abandoned this title, unless other questions are open over and over, do the questions are done, or suddenly had the idea of this problem, or do not look back to think about this problem. The second problem, the game also appeared twice thinking is not clear, the finished code to the code only to find the problem thinking errors, a total waste one hour of time. After have an idea, can not be rushed immediately to the machine, you should check the correctness of his thoughts, at least not to an error in the general direction, to avoid wasting precious time and think time machine ground. The third problem, in the case of failure to sign boldly open other questions do seem to question, not because did not go to the game and missed some of the possible problems can be too. Meanwhile title after title on the list of attendance, not just spend too little time to read, you may think for a while would come to ideas (control in less than 45 minutes). There is usually playing practice match have to pay more to control their compliance with the Code of game time, not two people on board, can not be arbitrarily Mang, time to think about how the game should do.
After my personal problem, this issue is not made out of the most important K title. Obviously done before training match a similar solution "strange loop" with questions related to the nature of a bipartite graph, but the game still did not make it. Why is there such a situation, I think the problem is not enough reason for removal, there are usually done after the title, there is no more to think about the contact and knowledge of the subject, some good questions can not be made out on the end, or did not do it after the game looked to break out solution to a problem is over, to think more about how this is a step by step problem-solving ideas get out. All in all, when do question should be more emphasis on process rather than look at the results.