pkusc2016 Roll Rough Kee

Write your travels for the first time.

Day0

And Yzx,hjs, a 7-point plane in the morning, on the plane has been sleeping ... After waking up, I almost landed.

Take the subway from the airport to the North station. (The original Yuanmingyuan and Zhongguancun are located next to the north)

First went to the hotel, the results of the front desk told us that the room has not quit, because the belly a little hungry, went to the opposite KFC filled the belly.

At 13 o ' Night the room was empty, putting things in place and sleeping.

Get up 14:30, report to PKU.

Peking University is so big ... Legs are boring, orz.

Found the science second building, in line, in front of about 30 people look like ...

And then just kept in a daze ...

I heard that the registration form has 5 pages?! Mom, there's no school.

Go in and fill out the information ... Back to the hotel.

Tired, continue to sleep ...

I ordered takeout in the evening.

Sleep, lying in bed for half a day can't sleep.

Day1

Breakfast in the morning, but I dare not eat, eat their own bread. Not enough to eat.

The road a bit of panic, take out cell phone listen will ピュアヒューリーズ~ heart in Hishinuma, feel practical point.

Listen to the meeting, said 136 people (to have no school orz) ... Besides, the Dean is so gentle ...

9:30, and then went to the examination room.

Looked at the seat number, found the seat, and then went to the toilet, the team are lined up outside ...

After coming back to the Web page, boarded the account has been started.

The first eye saw the a*b problem, the crouching groove? Is it just a name? Point open a look, lying trough, is really fft naked question, but the board has not played in half a year Orz

Think about it, should be able to knock out, but not insurance. Then went to look at the other questions.

The first question should be ida*, only once. The third question is the cow gold problem. The fourth question is fractal. The fifth question what ghost ...

Think carefully, or first knock on SB problem. So start the code question fourth.

A mess of mistakes, adjusted after the 11 o'clock, halfway because of the brain fever and several trips to the toilet (the final management is not sure to go to the toilet)

Turn on AC and start the code FFT.

The iterations are poorly written, so they are written recursively.

Finally did not tune out, out of the examination room, found that the butterfly formula is mistaken ...

So the morning ended with 1 questions.

Noon no mood to eat, casually eat in the cafeteria. Back to the hotel, afraid he again test template, hurriedly took out the computer looked at palindrome automatic machine, suffix array and so on.

Lying in bed for a little rest will, meditation: The morning can come up with a butterfly formula, but too panic, Apio on his knees on the mentality. The afternoon is still a steady state of mind again.

Afternoon exam, a look at the first question, which I have done before two geniuses ... The bare spins are jammed. So code code, sample test, WA.

A lying trough? Originally did not understand the rotation jam vector cross product Why that write, now to forget Orz, but should remember correctly.

So I did not care, to see other questions.

Found the fourth question is the pet adoption of the original question? So the direct set open, WA a pitch, and finally found that no, so that the element can not be the smallest ID. It was noted that there was no repetition of the weight of the pet adoption question.

Do I have to write splay? Think about it again. Notice that two players of equal weight, id than the larger players will be useless, and then use map to record a id,set record weights can be.

It's just a matter of doing it.

Then go to see the first question, think of it, cross product there is not write wrong, is not equal to write wrong, write a number of equals, removed after the sample, there is no problem, turn, AC.

Looked at the second question, found that the half-plane, but did not write, abandon therapy.

Look at the third question again, seems to be greedy? But it's not very fun.

The fourth question, the surface is very long ... Sample hand play did not play (the final exam found that his primary school math hangs, is (5+2) *10, not 5*2*10), abandoned therapy.

So I can only play one last question. Knocked the AC automaton, the result of the sentence string there has been hanging, not transferred out.

So the afternoon ended with 2 questions.

Hurry up and finish the meal and prepare for the maths.

into the examination room. It was a casual ride. Pick a location.

Here are the math questions:

1 proof that x^3+y^3+z^3-3xyz can be x+y+z divisible by 2 function (x-1) ^2+ (x-2) ^2+...+ (x-2016) ^2 the minimum 3 real coefficient of one yuan two times equation of one solution for (1+i)/(1-i), this equation 4 there are some children to divide the candy, The first child took a and the remaining n points, the second child took 2a and the remaining n one, ..., until the end, ask how many children, how many sweets 5 known x^y=y^x and X^m=y^n, to meet the conditions of all non-negative X and Y6 (1+x) ^3+ (1+x) ^4 +...+ (1+x) ^15 in the x^3 coefficient 7 tan30º+tan40º+tan50º+tan60º is expressed as c*cosα/cosβ, the Α,β,c8 triangle two edge length is a and B, the two edges of the midline perpendicular to each other, the third side of the length of 9 A plane truncated a positive trigonous column, the bottom side of an edge, and the bottom angle is α, truncated three pyramid volume of V, the cross-sectional area of 10 a play game, a select a greater than 1 of the integer k, b Select a greater than or equal to K of the integer n, and then a selected n different natural numbers, b from the n number of the number of K selected, If this k number and is a multiple of K, B wins, otherwise a win. Ask if there is a winning strategy, who wins, if a win, give the smallest k, if B wins, give the smallest n

First to do the second problem, the first derivative, and then bring in, the final natural number of squares and sum formula set, even if it came out.

The third question, set the equation, and then make a mess, even if it comes out.

The fourth question what ghost, the question surface can not understand, "and" what mean ...

The sixth question is after-school exercises ... Do it casually.

The seventh question ... The trigonometric formula is not very familiar, do not do it first.

The eighth question, a little meaning ah ... Should be able to do.

The nineth question, simple, draw an image to count on the line. (Last found to the pyramid volume by a 1/6)

The tenth question directly abandons the treatment.

Think of the fifth question, should be to take the logarithm and then generation Bar, made after the throw that (finally found not finished it 2333)

First, the XYZ is assigned to the first three items, then extracted common divisor, according to the common divisor with a matching, got out.

And then go to the fourth question (the last count is wrong)

The province of the problem, and finally left 15 minutes, all kinds of vectors, or can not get out.

Finally found three of the Pythagorean theorem came out ... Lying trough what ghost Ah, the junior math?

The last 8 questions ended. (seems to have knelt 2 or 3 questions)

Back to the hotel, rest.

Day2

Breakfast is Day0 brought bread ...

10 minutes early in the morning to the examination room, sitting in the seat, first calm the mood, a stable mentality.

First sweep the title, the first question is too long not to look at, the second question seems to be a bare cost stream, the third question Burnside, the fourth question of the idiot DP, the fifth question seems to seek a bridge? The sixth question of water.

So first to chop the sixth question, continue to knock the third question, the results of the sample has not been, found there is a reversal of the situation ... I've never done this before. Forget it, don't let it go.

Then knocked the fourth question, then did the second question. The second question handed over two rounds, all re, finally the SPFA queue opened to 50w is over = what ghost

And then read the first question, this is not a simplified version of SNOI2016 ... So start code code, hand it up, WA ... Careful look at the following example, found that the sample did not (cover face), point coordinates calculated wrong, changed the next on the.

Then went to see the third question.

Well, Burnside already forgot ... I remember Polya. Just remember that each loop section is independent, so for a permutation, the answer is the color ^ number of cycle sections ... It makes sense ... Hand play the next example, after, good, start code, hand over 1 a.

There are 20 minutes left, go to the fifth question, long time did not knock the bridge, the result has not been transferred out Orz. (after the game found not to find the bridge on it, in fact, the BCC indentation)

So the 5 ended.

Noon quickly ate meal, looked at the board.

Afternoon and morning, the first stable mentality.

Start reading the question.

A look at the first source programming internship ... Must be a water problem, so the first yards. Wait a while ... Input is what the system Ah! Say is an integer, then i default decimal good ... After the code is handed up 1 a.

And then found that the fifth question someone had, point open a look is WJR (%%%), read the next question, found is an AC automaton/KMP + DP, so began to code, made a mess.

Found the sixth question too many people, so to see the sixth question. The face of the problem ... It's so long ... Finally read to understand that it is a flood problem. But someone's mle is what the hell ... Is that card PQ? Regardless of the first code, and then past.

The second question one face cannot do, the third question is a game, the fourth question what ghost ...

Knock on a search to engage in game, and finally found that the law is Fibonacci lowbit, but ... This binary each number is what I did not find the rule ... (Maybe my table is wrong)

The fourth question is not many people have the appearance ... Forget about the game.

Didn't come out at last.

So the 3 ended.

After eating the meal back will introduce themselves, and then go to find the examination room.

The building is so big, it's getting lost.

Start the interview.

First interviewer

Interviewer: Time is a little tight, take 2 minutes to introduce yourself.

Me: I am balabala ... (The result will be less than 1 minutes to finish)

Interviewer: How many people do you rank in grade?

Me: 50 to 100 (cover face)

Interviewer: How much time do you spend in the competition?

I: All day in the week, Sunday morning rest, afternoon to study

Interviewer: What subjects do you like?

Me: Math (I thought it was culture class)

Interviewer: Then why don't you go to the math contest?

Me: Because ... Computer math is more interesting! (The hell you dug up the pit)

Interviewer: What is the mode of computer competition training in your school?

Me: Balabalabala

Interviewer: OK, here it is, help me to call the next classmate

So I went out ... (say the next classmate is Lu luxuriantly AH)

A second interviewer

Interviewer: What is your school teacher's children?

Me: Not much

Interviewer: How about the language level

Me: usually.

Interviewer: How many people do you usually rank in grade?

Me: 50 to 100 (cover your Face Again)

Interviewer: Have you felt a lot of pressure?

I: There, the students around are very strong, have to work harder to catch up with

Interviewer: Do you feel that there are times when only hard work is not enough?

Me: Yes, I still need the right method.

Interviewer: Have you read the original in English?

I: Read the novel, not finished reading, the Milky Way guide, relatively thick

Interviewer: Have you ever read a series of books

I: Read three of Shakespeare's four tragedies

Interviewer: You say a place that makes me feel good about you (lying trough this question all ask)

Me: I have read English textbooks.

Interviewer: What have you read?

Me: Mathematical analysis or something.

Interviewer: Which country's

Me: the Springer publishing house

Interviewer: They've learned something.

Me: Balabala

Interviewer: Well, you're still learning the basics.

I: Because the time is not much, put energy very little (helpless)

Interviewer: Okay, OK, help me call the next class.

And then I just ran.

A third interviewer

Interviewer: What's your parents ' educational background?

Me: Balabala

Interviewer: How many people do you usually test?

Me: 50 to 100 (cover your Face Again)

Interviewer: I think there is a student in your school, how did he do (crouching Groove)

Me: He's a little better than me.

Interviewer: What do you think he deserves to learn from you?

Me: Balabala

Interviewer: Why did you choose PKU

Me: I think Peking University has a strong humanistic atmosphere.

Interviewer: Is there anything else you'd like to ask?

Me: No.

Run

It's finally over.

Night in the dorm bored ... Go upstairs and find someone else to play cards.

Went to KFC and bought some food.

At last he went to bed.

Day3

In the morning to the meeting place, the first topic.

By the time 10 o'clock, the title was forcibly stopped and the agreement started.

Lying trough ...

When the agreement was taken, the eyes did not know where to look.

Slow down to see a long day. Well, unconditional 60, the first 1001.

Successful falsification: The province Rk1 has the unconditional one

It's nice to go to a bakery and eat some bread.

Then look at RE0.

Take a plane back in the afternoon.

So the PKUSC is happy to roll the thick.

Anyway weak province, 60 points or can be admitted to PKU, not virtual.

Summarize:

1, the board to be cooked

2, the mentality is better

3, must understand the principle of the algorithm

4, have to do more IQ questions

pkusc2016 Roll Rough Kee