Summary of the ACM/ICPC Beijing division on-site competition !!

The three-day trip to Beijing is over. with some regrets, I will say goodbye to my first regional. see you later !! Before the competition: On the afternoon of the 14th, I hurriedly finished the power test and then went back to the dormitory to make up my homework. I was also drunk, after that, I got my homework done in my busy schedule (as if it was all done in disorder:-(). after completing the homework in a rush, I went to the SH round, then I left the school with WZY and Y senior students, and then I went to the teacher.

The three-day trip to Beijing is over. with some regrets, I will say goodbye to my first regional. see you later !!

Before the competition:

On the afternoon of the 14th, I hurriedly finished the batchcompute test and then went back to the dormitory to make up my homework. I was also drunk, so I finished my homework in my busy schedule (as if I had done it all in disorder: -(). after completing the homework in a hurry, I went to the SH round. then I left the school with WZY and Y senior students, and then I went to meet my teacher ~~ (The instructor's whereabouts are so strange ~ Actually, I also said something similar ~ Drunk), sleep at night ~ (:-(), But soon I fell asleep. The next day (the morning of the 15th) I came to Beijing West Railway Station, and there were various taxi hotels, finally, I found a home inn in the south of Beijing Normal University, which is quite comfortable. Hey ;-)

After finding the hotel, I had a breakfast in a hurry (starved to death). then I went to the volunteers and took them to school. I said that the teacher told us to relax (volunteers are female !), Instant speechless (then he goes first, MD)

Volunteers took us around the school gymnasium (the competition was just near Qiu jiduan Gymnasium), and then they went to the electronic building to report it. Only then did they find that the costumes were Big Red, A little surprised (volunteers are white and black), but it is much better than the competition server in the last provincial competition (hh ), when I went to school, I also found many people carrying bags (contestants). It is estimated that there are many great gods in it !! Later, I waited for the senior students (the other team of the school.

At noon, the food for Beijing Normal University is okay. the food for normal schools is not expensive. (the teacher has finished eating it again. I remember eating it only once in the morning, he also had a lot of food, and this time he finished it again. he instantly thought it was amazing, hhhh). after eating it, we went around at Beijing Normal University, and they went back to the instructor, the opening ceremony started at half past one P.M., but the efficiency of Chinese operations seemed to be almost the same. it wasn't until or more. then the opening ceremony began at. (please give a speech below all the time ), then I started to do the question ....

Warm-up match: the first time I came to the competition, I felt quite relaxed. there was no pressure and strong enough. I had no hope of winning the prize (come on later !!), I saw a pile of yellow balloons at a certain entrance outside the stadium. I knew that the yellow balloon must be a question of water! It turns out that the warm-up match is question A, but question A looks speechless, that is, it's amazing to find the number of ACM (including acm) in the entire question, however, I tried it five times before trying it out. In addition, the evaluation of the warm-up match was very slow and the question was too slow to die. The first question was handed over 10 times to show that it had passed the fifth time, I asked SH and WZY to answer question B. I went to see other things, and then question D was a character question. it was so boring ..... I have handed in more than a dozen times before ..... the warm-up match ended in a strange way ....

After the warm-up match, I went to dinner (or xinlequn ...), then I went back to the hotel. I went back to the hotel and took a hot bath. it was quite nice. then I went to bed early. Alas, I didn't expect to go to bed early, I fell asleep at half past seven (I wanted to take a nap ...), I think it's strange to wake up. why is it ??? Lying in the slot, are there any mistakes... and then calmly turn on Youku to watch the video. then, Nima, how is the network speed so slow !! Looking at it, I went to bed again... and then I went to school at half past seven. when I got out of the door in a hurry, I went out and went to the Westgate of Beijing Normal University. I thought I would have bought Red Bull and pulsating! When I arrived at Qiu Ji, I just had a piece of fun and couldn't touch the mouse or keyboard. then the competition started like this...

On-site competition:

After, let's get started in two minutes (efficiency is the same). let's just get angry with a bottle of red bull and then I saw the balloon when I first came into the market, question A is yellow again... then I read it again. what I expected was that it was a water problem, so I quickly typed ZY. I didn't want to think SH was not equipped with the VIM environment... then, in my busy schedule, I found that question A (13 min), and suddenly A "YES" was quite good. when I checked the list, it was almost too many people, I think most people know that question A is A water Question. When I look at our team, I am sitting on the left side of question A. FB, the winner of the Chinese Emy of Hong Kong, pretty nervous .... after that, question k fb was taken away, and then I quickly went to view question K. The first thing I thought was to find the largest ascending subsequence. I threw it to them when I was not familiar with these subsequences, I went to another question. when I saw the H question, I looked at it and asked for the difference or sum of numbers (I didn't understand the question before, and then I set up an hint, only then can we know that the word combination means an exclusive or exclusive word. mom, the English language hurt me:-(, and then wa two times to find the problem, .... don't do it, alas, it's still not strong enough.) during this period, ZY knocked on K and the test sample passed. I handed it over again. The result is WA,

It is estimated that they thought wrong, and I did not care about it, so I went to the H question again, relentlessly WA ,...... after a period of time in the downturn, they have been engaged in the last K questions, it is estimated that the idea is wrong, resulting in the last problem, I was also confused by H questions, insufficient strength ~~~~ I felt that I had been behind others for many years. at that time, I vowed to go back and study algorithms !!!!! Around Min, they finally passed the K question. alas:-(, unable to catch up with others ....

Then I found many balloons floating on the whole site, but I don't have much space here ..... after completing the K-question, we will look at the calculation geometric question (I-question). We found that it was a template question, that is, to find the intersection area of the two circles, and then we went crazy to find the template, fortunately, ZY brought the template from the senior student, and then I called SH to knock on the template. I came to build the main function. After I typed the main function, I compiled the Compile. then I got a Nima, A pile of errors. after a large modification, you can compile and run the code. the sample has passed, and the code is submitted. at this time, the list has been closed for several minutes. at that time, it was still very tight, as a result, WA was full of his mother's brains. I couldn't find out the error after looking for a while. as a result, I changed the PI value. because it was a high precision, I played another 7-bit back ~ 8 digits, and then YES is displayed (it is a high-precision problem !! Depend !!), I'm so excited that I have no hope of winning the prize. I'm sorry .... the strength is still too good. at that time, we didn't give up on it. we continued to read the question. Before that, we read question D and found that it was a bit greedy and a bit of thinking. we just knocked on it, no ..... later, I asked ZY to answer question H, but it still didn't pass. Then there was no time. alas:-(, at last, the host shouted ,..., 3, 2, 1 and the semi-finals are over .... let's put a bubble at the end. I thought we were the champions and liked the bubble ....

After that, I left the game and went to the old school to play .....

After the competition:

After talking to old students, I went back to the arena to listen to the problem-solving report, and then the awards ceremony was held. the students took copper, but we still have a chance. I will cheer up !!!

Returning to the hotel silently, the teacher invited me to dinner. I 'd like to say that the fried noodle is so bad ....

After arriving at the room, I went out with ZY and SH and turned around. then I went to Beiying, and found that I needed to swipe my card. MD was so bad ..... when I came back, I was exhausted. I walked for a few kilometers and visited those schools. However, it was nice to go to bed at a hotel. I slept ....

The next day was Beijing's variety of subway and subway transfers. during this period, I wanted to go to Tsinghua. after all, there were thousands of students who wanted to go to the Summer Palace, then there are all kinds of people who are exhausted by the visit. it's just a matter of getting tired and tired... then I rolled back to school silently.

Summary: It's not long before we got into touch with this product. it's not long before we started algorithm learning in the summer vacation. In fact, we didn't learn much in the summer vacation... you have to do it again !! Fighting !!

(Will it feel a tear when I open this blog in a few years ?)