随笔分类 - Pat
摘要：This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occu
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摘要：When shipping goods with containers, we have to be careful not to pack some incompatible goods into the same container, or we might get ourselves in s
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摘要：复习清单，2018.9.8 12点04分 my_pow() 并查集 toporder() 线段树单点更新 字典树 Kmp AC自动机 prim kruskal 二分图 equal(A, A + m, temp); // 判断数组A的前m个元素与数组temp的前m个元素是否相等 java 大数 pyt
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摘要：Cutting an integer means to cut a K digits lone integer Z into two integers of (K/2) digits long integers A and B. For example, after cutting Z = 1673
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摘要：It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enemy, all the highways from/toward that c
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摘要：People on Mars count their numbers with base 13: Zero on Earth is called "tret" on Mars. The numbers 1 to 12 on Earch is called "jan, feb, mar, apr, m
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摘要：The basic task is simple: given N real numbers, you are supposed to calculate their average. But what makes it complicated is that some of the input n
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摘要：Given three integers A, B and C in [−263,263], you are supposed to tell whether A+B>C. Input Specification: The first line of the input gives th
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摘要：For any 4-digit integer except the ones with all the digits being the same, if we sort the digits in non-increasing order first, and then in non-decre
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摘要：The Japanese language is notorious for its sentence ending particles. Personal preference of such particles can be considered as a reflection of the s
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摘要：On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to those keys will not appear on sc
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摘要：Eva would like to make a string of beads with her favorite colors so she went to a small shop to buy some beads. There were many colorful strings of b
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摘要：The task is really simple: given N exits on a highway which forms a simple cycle, you are supposed to tell the shortest distance between any pair of e
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摘要：Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "ins
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摘要：Being unique is so important to people on Mars that even their lottery is designed in a unique way. The rule of winning is simple: one bets on a numbe
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摘要：To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords
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摘要：Given two strings S1 and S2, S=S1−S2 is defined to be the remaining string after taking all the characters in S2 from S1. Your task
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摘要：Behind the scenes in the computer's memory, color is always talked about as a series of 24 bits of information for each pixel. In an image, the color
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摘要：If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver
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摘要：People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6-digit number, wher
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