Recall the election (from noip)

In the early spring of this year, I gave up the red and black trees I don't need to plant. I followed a group of big cows to the Institute of Engineering to submit my questions.

　　


Writing red and black trees helps them rotate and change color. reading their question a is my pleasure in the past winter. Although I still stick to them this spring, my feelings for them are not as good as they were before. I have seen one of these weaknesses: blindly wanting to rotate and blindly balancing. I added several lines of special judgments to the rb_delete_fixup () function. After malloc and free, I asked them to run on the evaluation machine. After one or two groups, they would overflow, you must judge Gart again. Later, I moved the source code of the set and added some special judgments. When I left them, there were 70 or 80 rows of if on the screen, but there were three or four groups away from the AC. Looking at the running time of several sets of data that a has been using, we can see that they still mean that we want a to go over the rankings. For this reason, I am not afraid of them. If they are not waiting for them, the AC will abandon them and send a group of great ox gods to the Institute of Engineering for examination.
My name is "test". In fact, there is no hope. Everything has to be mixed with STL for two meals. I lost my liking for bzoj's water problem. I wanted to change something to another place, but in the name of a test. So I am quite idle and can watch their AK.
On the eve of the provincial election, I often took everyone to review what I learned a few days ago. I sat in the back corner and secretly debugged my own red/black tree. But I often walked to my side, knocked on my desk, and looked up and shouted: "There are four methods of FFT writing, do you know ?" I thought about what I was about to say. The old man was waiting impatiently and looked up and turned away.
The next day, when riding a bike to the test site, the lust in front of the door has become a reality. On both sides of the elders, the ranks of the Titans were scattered, and the voice of ridicule was endless. All the big cows in the IDC room will attend the event, of course, if they have a bronze medal but not a gold medal, they will also attend the event if they have a gold medal but not an AK, and retired students who have not abused enough food should attend the event. Some schools, even old women, women, and children aged 12 and 3 are present. This is not an ordinary provincial election. It is a type of slaughter, a great view of the yarian nation! I was so touched when I heard this sound in the car. However, the madmen in that class are not familiar with this, just immersed in the Discrete Mathematics under the high point of view, backward Random differential equations and G-expectation, and other books. I shouted at them:
"Hello! It's useless! Look at the big boys from many external schools! This is a state that has never been seen before in the cold and clear weak provinces. Let's take a look !"
But their eyes gave a glance around them and they returned to the book, still immersed in the book. Later I raised various questions to abuse me:
"How can we prove that approx_vertex_cover is a 2-Approximation Algorithm of polynomial time ?"
"If a ^ IK is an anticalled tensor, do a ^ ik and a ^ * ik = (1/2) e ^ iklmalm have dual relations with each other ?"
"If X is a compact and split space, and if F: X-> X is zero, does F have a fixed point ?"
"To create an open cover for a disruptive space, make its nerves a scorpion with only a limited number of teeth. What is the dimension of a linear space ?"
I was overwhelmed by them and couldn't answer any question. I said to the elders, "these questions are not acceptable !" They all laughed and pointed out a finger at me and said, "You have to kneel down! Save your selections !" I'm angry, shy, and angry. I just smiled and leaned on the wall to brush my post. I heard someone in them teach me: "the dimension of N-latitude manifold is n !......" I care about the girl from the external school. I don't want to listen to them. They also care about the girl in the book and don't want to tell me anything.
After receiving the admission ticket, they took out their books and kept seeing them in the test room. A lot of God's big cows have embraced stationery, brought a belly of knowledge such as "ordinary neighborhood is a free circulation group", and disdainfully entered the test room. A couple of girls, who are 12 or 3 years old, looked down on the ground and seemed worried that they could not access the accesskey.
In the afternoon, many cool came back. As soon as I got out of the test room, I made a bunch of speeches: the question of water, the question of food: You write too slowly, how many different methods have I used, and there have been a lot of discussions. After talking for a long time, some of them expressed satisfaction on their faces and some expressed disappointment on their faces. However, we are not prepared to accept the accesskey. The boy shouted, "I am not an AK !" The female's child said, "my AK is dying !"
They wrote more than one AC Algorithm for each question, some of which were shot twice, and some were changed to three times. I am waiting for a weak food group, knowing that I have insufficient knowledge and cannot perform arithmetic operations. I know that the provincial team is hard to get one of the hundreds of people, but I would rather have an extra registration fee and a photo, try your luck. If you get the test, you can climb higher. The word "Province" of the provincial team seems to be an infinite aroma to people, and everyone is excited.

Within a few hours from completion of the examination to publication, the air between the candidates was very dull. There are a few girls who are restless and have no worries about tea. Their Husi dream was repeatedly revealed in the conversation; sometimes they seemed very confident, and they listened to the provincial training there; but sometimes I hear people say, "If you get one of a hundred people, you may not get all of them if you do well." Then I am so disheartened to discuss an ICPC competition. People who are not satisfied with the test say that "Ak is dying", but from the perspective of 16 AC algorithms, they can see that they are not desperate. There are plenty of Lucky examples in the world. In case of an AK, they will be like a resurrection. Isn't it even more happy? However, sometimes they suddenly felt that this was too close to their dreams and asked, "What time do they have to wait ?" Then, I immediately followed the phrase "none of my business" and continued to debug the code of other students in my mind.
In addition to hearing their discussion when I was bored, I spent the whole afternoon offering a worship to South China. I wondered which strong province my God gave me a sense of worship, so that my code could have a few more data sets. A school teacher came out of the building, and I was doing nothing. I felt that I was too nervous to watch my score. I didn't dare to encourage them to watch it myself. people sat in a noodle shop near the College of Engineering, let the old man go to the noodle shop and report to them. However, this method has been relaxed. After a period of about a quarter of an old lady's visit, everyone looked at the old lady's return. Some people stretch their necks and look at the Old Ones. Some people go out to wait for the old ones. After waiting for a long time, the place will become a place of ten eyes, and all people will be able to draw attention from many small eyes. The people who wear the golden suit are especially surprised by them, they can almost stand up. After a long period of time, the old man became their enemy. Some female secretly scold the regular saying "It's broken! Broken !", Some male students are often pushed down by the evaluation machine. But it never broke down, and finally dragged a golden suit and slowly pulled it back from that place. "Come back, come back", with a scream, all quiet, many eyes are concentrated on the old lips, waiting to fall. The air in the last few seconds is not described by my backlit keyboard!
"Who did not enter the provincial team", "who did not have an AK", and "who did not run the code fast enough"-from the old lips. Every sentence of him seems like a bang. I almost want to pack my ears. Some of the people who have been attacked by this flash have pale faces, some have red faces, and some are confused if they are "wet". Some are helpless, some are crying, but they are not smiling.
"You guys, too young too simple, do not study well at ordinary times. Chen Lijie from outside hangzhou.com doesn't know where it is higher than you, I have a chat with him !......"

Scalability is heavier when the scalability of the scalpers. It can be seen that a couple of male worship each other like a couple. Those who only take the test will have the courage to join a group of several people and secretly run back to the data center to continue to photograph the data that is not a in the test room, for fear of being often discovered. Those who do not have an AK are especially inferior. They have to go back and solve the problem. The preparation of the PPT and PDF files will not hesitate. It seems that the sincerity of reflection has endless future hopes, so that we can continue to look up and be human without being ridiculed by the elders.
I visited various schools and did not dare to find anything that I often said. I felt that the computer room was hitting the keyboard that followed me for a long time, and I sent my schoolbag to the machine room. When my schoolbag was sent, I sent a message about the red and black trees: It is said that the red and black trees I wrote have not been evaluated yet, because O2 was not opened yet. My classmates sent a text message saying, "After you go, we have added several optimizations. Now it runs very fast and almost runs to the top of the ranking. But the overflow is so powerful that the memory is exploding that it is useless to run fast. It seems that it will not be AC today ."


April 28, year 14 at home



By CH/AC sauce