Zhouwen_的博客

Memory Manager | JXNUOJ描述：There is little time left before the release of the first national operating system BerlOS. Some of its components are not finished yet — the memory manager is among them. According to the developers' plan, in the first releas

Kalevitch and Chess | JXNUOJ描述：A famous Berland's painter Kalevitch likes to shock the public. One of his last obsessions is chess. For more than a thousand years people have been playing this old game on uninteresting, monotonous boards. Kalevitch dec

Exposition | JXNUOJ描述：There are several days left before the fiftieth birthday of a famous Berland's writer Berlbury. In this connection the local library decided to make an exposition of the works of this famous science-fiction writer. It was decided

Lizards and Basements 2 | JXNUOJ描述：This is simplified version of the problem used on the original contest. The original problem seems to have too difiicult solution. The constraints for input data have been reduced.这是在原始比赛中的问题的简化版本。开始的问题有太多不同的解决方法。减少

Alice, Bob and Chocolate | JXNUOJhttps://acs.jxnu.edu.cn/problem/CF6C描述：Alice and Bob like games. And now they are ready to start a new game. They have placednchocolate bars in a line. Alice starts to eat chocolate bars one by one from left to right,..

President's Office | JXNUOJhttps://acs.jxnu.edu.cn/problem/CF6B描述：President of Berland has a very vast office-room, where, apart from him, work his subordinates. Each subordinate, as well as President himself, has his own desk of a unique colour. Each

Triangle | JXNUOJhttps://acs.jxnu.edu.cn/problem/CF6A描述：Johnny has a younger sister Anne, who is very clever and smart. As she came home from the kindergarten, she told his brother about the task that her kindergartener asked her to solve. The task was

Bindian Signalizing | JXNUOJ描述：Everyone knows that long ago on the territory of present-day Berland there lived Bindian tribes. Their capital was surrounded bynhills, forming a circle. On each hill there was a watchman, who watched the neighbourhood ..

Follow Traffic Rules | JXNUOJ描述：Everybody knows that the capital of Berland is connected toBercouver (the Olympic capital) by a direct road. To improve the road's traffic capacity, there was placed just one traffic sign, limiting the maximum speed. Tra

最长的常规支架序列|断续器 (jxnu.edu.cn)https://acs.jxnu.edu.cn/problem/CF5C描述：This is yet another problem dealing with regular bracket sequences.We should remind you that a bracket sequence is called regular, if by inserting «+» and «1» into it we can get a corr

Center Alignment | JXNUOJ描述：Almost every text editor has a built-in function of center text alignment. The developers of the popular in Berland text editor «Textpad» decided to introduce this functionality into the fourth release of the product.You a

聊天服务器传出流量|断续器 (jxnu.edu.cn)https://acs.jxnu.edu.cn/problem/CF5A描述：Polycarp is working on a new project called "Polychat". Following modern tendencies in IT, he decided, that this project should contain chat as well. To achieve this goal, Polycarp has

https://acs.jxnu.edu.cn/problem/CF4D描述：Peter decided to wish happy birthday to his friend from Australia and send him a card. To make his present more mysterious, he decided to make achain. Chain here is such a sequence of envelopesA = {a1,  a2,  .....

https://acs.jxnu.edu.cn/problem/CF4C描述：A new e-mail service "Berlandesk" is going to be opened in Berland in the near future. The site administration wants to launch their project as soon as possible, that's why they ask you to help. You're suggested t

描述：Tomorrow Peter has a Biology exam. He does not like this subject much, butddays ago he learnt that he would have to take this exam. Peter's strict parents made him prepare for the exam immediately, for this purpose he has to study not less thanminT...

https://acs.jxnu.edu.cn/problem/CF4Ahttps://acs.jxnu.edu.cn/problem/CF4A描述：One hot summer day Pete and his friend Billy decided to buy a watermelon. They chose the biggest and the ripest one, in their opinion. After that the watermelon was weighed, and

https://acs.jxnu.edu.cn/problem/CF3Dhttps://acs.jxnu.edu.cn/problem/CF3DThis is yet another problem on regular bracket sequences.这是规则括号序列的另一个问题。A bracket sequence is called regular, if by inserting "+" and "1" into it we get a correct mathematical ex

描述：Certainly, everyone is familiar with tic-tac-toe game. The rules are very simple indeed. Two players take turns marking the cells in a3 × 3grid (one player always draws crosses, the other — noughts). The player who succeeds first in placing three of..

https://acs.jxnu.edu.cn/problem/CF3Bhttps://acs.jxnu.edu.cn/problem/CF3BA group of tourists is going to kayak and catamaran tour. A rented lorry has arrived to the boat depot to take kayaks and catamarans to the point of departure. It's known that all ..

国王的最短路径描述：The king is left alone on the chessboard. In spite of this loneliness, he doesn't lose heart, because he has business of national importance. For example, he has to pay an official visit to squaret. As the king is not in habit of wasting his.

https://acs.jxnu.edu.cn/problem/CF2Chttps://acs.jxnu.edu.cn/problem/CF2C评论员问题描述：The Olympic Games in Bercouver are in full swing now. Here everyone has their own objectives: sportsmen compete for medals, and sport commentators compete for more convenie

https://acs.jxnu.edu.cn/problem/CF2Bhttps://acs.jxnu.edu.cn/problem/CF2B描述：There is a square matrixn × n, consisting of non-negative integer numbers. You should find such a way on it that有一个方形的矩阵n*n，由非负整数组成。你需要找到以下方式starts in the upper left cell o.

胜利者描述：The winner of the card game popular in Berland "Berlogging" is determined according to the following rules. If at the end of the game there is only one player with the maximum number of points, he is the winner. The situation becomes more difficu

古老的伯兰德马戏团Nowadays all circuses in Berland have a round arena with diameter 13 meters, but in the past things were different.如今，所有的伯兰德马戏团有直径为13米的圆形竞技场，但是在过去是不同的。In Ancient Berland arenas in circuses were shaped as a regular (equiangular) polygon, the

描述：In the popular spreadsheets systems (for example, in Excel) the following numeration of columns is used. The first column has number A, the second — number B, etc. till column 26 that is marked by Z. Then there are two-letter numbers: column 27 has nu

描述：Theatre Square in the capital city of Berland has a rectangular shape with the sizen × mmeters. On the occasion of the city's anniversary, a decision was taken to pave the Square with square granite flagstones. Each flagstone is of the sizea × a....