JiaYao的博客

Efim just received his grade for the last test. He studies in a special school and his grade can be equal to any positive decimal fraction. First he got disappointed, as he expected a way more pleasan...

C. Sonya and Robotstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSince Sonya is interested in robotics too, she decided to construct robots that ...

B. Sonya and Exhibitiontime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSonya decided to organize an exhibition of flowers. Since the girl likes onl...

A. Sonya and Hotelstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSonya decided that having her own hotel business is the best way of earning mone...

D. Suit and Tietime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAllen is hosting a formal dinner party. 2n2n people come to the event in nn pairs (...

、B. World Cuptime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAllen wants to enter a fan zone that occupies a round square and has nn entrances.Ther...

A. Nastya and an Arraytime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputNastya owns too many arrays now, so she wants to delete the least important o...

A. Commentary Boxestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputBerland Football Cup starts really soon! Commentators from all over the world c...

C. Two Squarestime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given two squares, one with sides parallel to the coordinate axes, and anothe...

A. Fingerprintstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are locked in a room with a door that has a keypad with 10 keys corresponding to...

D. Bishwocktime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputBishwock is a chess figure that consists of three squares resembling an "L-bar". This fi...

B. Getting an Atime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputTranslator's note: in Russia's most widespread grading system, there are four grades...

A. If at first you don't succeed...time limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputEach student eagerly awaits the day he would pass the exams succ...

参考了dalao的代码！！！F. Consecutive Subsequencetime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given an integer array of length nn.You have to ch...

B. Treasure Hunttime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter the big birthday party, Katie still wanted Shiro to have some more fun. Later...

A. Balloonstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere are quite a lot of ways to have fun with inflatable balloons. For example, you can...

B. Cuttingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere are a lot of things which could be cut — trees, paper, "the rope". In this problem...

A. Tanya and Stairwaystime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputLittle girl Tanya climbs the stairs inside a multi-storey building. Every tim...

C. The Phone Numbertime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputMrs. Smith is trying to contact her husband, John Smith, but s...

B. The Bitstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputRudolf is on his way to the castle. Before getting into the castle, t...

A. The Ranktime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputJohn Smith knows that his son, Thomas Smith, is among the best student...

D. Vasya And The Matrixtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputNow Vasya is taking an exam in mathematics. In order to g...

B. Segment Occurrencestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given two strings ss and tt, both consisting only ...

A. Death Notetime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou received a notebook which is called Death Note. This notebook h...

A bus moves along the coordinate line Ox from the point x = 0 to the point x = a. After starting from the point x = 0, it reaches the point x = a, immediately turns back and then moves to the point x ...

Have you ever tried to explain to the coordinator, why it is eight hours to the contest and not a single problem has been prepared yet? Misha had. And this time he has a really strong excuse: he faced...

A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs.Catacombs consist of several rooms a...

A one-dimensional Japanese crossword can be represented as a binary string of length x. An encoding of this crossword is an array a of size n, where n is the number of segments formed completely of 1'...

Slava plays his favorite game "Peace Lightning". Now he is flying a bomber on a very specific map.Formally, map is a checkered field of size 1 × n, the cells of which are numbered from 1 to n, in ea...

A. Codehorses T-shirtstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputCodehorses has just hosted the second Codehorses Cup. This year, the same as...

B. Delete from the Lefttime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given two strings ss and tt. In a single move, you can choose any of...

C. Nested Segmentstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a sequence a1, a2, ..., an of one-dimensional segments numbered 1 ...

B. Lara Croft and the New Gametime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou might have heard about the next game in Lara Croft series coming...

D. Divide by three, multiply by twotime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPolycarp likes to play with numbers. He takes some integer numbe...

A. Links and Pearlstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputA necklace can be described as a string of links ('-') and pearls ('o'), with th...

F. Mentorstime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputIn BerSoft nn programmers work, the programmer ii is characterized by a skill riri.A pro...

E. Bus Video Systemtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe busses in Berland are equipped with a video surveillance system. The system ...

参考：https://blog.youkuaiyun.com/unclejokerly/article/details/80410223D. Almost Arithmetic Progressiontime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPolyc...

C. Letterstime limit per test4 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThere are nn dormitories in Berland State University, they are numbered with integers fr...

B. File Nametime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou can not just take the file and send it. When Polycarp trying to send a file in the ...