Last year, due to some conflicts between time and exams, we did not apply for the Blue Bridge Cup. 13 clubs participated in the first-entry national competition in 12 provinces. . Then at the end of the term, this can be crazy enough to add a few f2 credits (poorly, my f2 was only a few tenths last year). At that time, I regretted not going to the Blue Bridge Cup. The senior said that it was also very good to win the award, and then almost every year I won the first place in the province. It's all our school. This year, I had to sign up and experience the provincial competition of the Blue Bridge Cup. . The overall feeling is. . Indeed water.
The examination room is in a college, and the admission ticket has to be printed out by myself. At 7:30 in the morning, I went to the car that the school prepared for us at the entrance of the computer college. It took about half an hour to arrive. . When it arrived, I hadn't woken up much hhhh. Then I walked around the exam room for a while. . A small college, not as formal as I imagined, but there are indeed many candidates here. . . When we entered the examination room, there was quite the atmosphere of the college entrance examination.
Then I got to the exam room and started writing questions. The first question was the number of days. . The water question was written directly without a program, and the second question was not understood very well at first. . . Then I jumped, and later I came back and found that it was a binary conversion, very water, nine to the ninth power, and the third question counted the number of zeros. . . It is exactly the same as the previous question given by lyh for level 17. There are a total of several 2s and several 5s in the direct arithmetic factor, and then take the minimum value. . I am too lazy to write directly to open eclipse and use java's BigInteger to simulate a hhh instant solution. The fourth question dropped the phone. . The water question directly wrote a binary program and calculated it to be 9 times. Then I glanced at it and it was 3 samples, which is 27. . After the exam, many people said that they did not see this condition. The fifth question is to fill in the blanks in quick row, which is relatively watery. . I don't remember the answer, I just tried it a few times and it came out. The sixth question triples. . When I got to zz, I made a line segment tree, and finally I handed over two line segment trees plus a loop. . I don't know if it will time out. . . Then I heard that it is two points. How could I forget the two points? The seventh question is quite interesting. I pushed it for about half an hour. Take the absolute value and take the larger one to find the "layer". It can be found that the length of the point in the lower left corner of each layer is the square of (number of layers * 2-1), know this and then go up Push the coordinates of the upper corner of the same layer, push 4 lines, and see which line the coordinates belong to to solve this problem, the eighth problem. . . Emmm, I can only use violence and I should only get half of the points. The ninth question is about the number of islands that are completely submerged. . Just search for the points with hash marks on all four sides and do bfs to eliminate the island. . But I was so brainless that I wrote the number of islands that were not completely submerged. . The score for this question is very high. I won't get any points here, but I feel that it should be no problem to save one, the last question. . It seems very difficult. When I was writing, the keyboard was broken and I couldn't type. Then I contacted the teacher to change the station. . It broke after half an hour, maybe today is the reason for April Fool's Day emmmm, because of this reason I didn't mix qaq.
The summary is. . It's a tough question, but be careful. . . Effort is still required.