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转自：https://www.cnblogs.com/xingkongyihao/p/9124635.htmlD. Points and Powers of Twostandard outputThere are nn distinct points on a coordinate line, the coordinate of ii-th point equals to xixi. Choose...

D. Ghoststime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputGhosts live in harmony and peace, they travel the space without any purpose other than sc...

B. Nastya Studies Informaticstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputToday on Informatics class Nastya learned about GCD and LCM (see links...

题目地址 You are given a multiset of n integers. You should select exactly k of them in a such way that the difference between any two of them is divisible by m, or tell that it is impossible.Numbers ...

Petya learned a new programming language CALPAS. A program in this language always takes one non-negative integer and returns one non-negative integer as well.In the language, there are only three c...

                                                 D. Relatively Prime Graphtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLet'...

C - Sum of Consecutive Prime Numbers POJ - 2739 Some positive integers can be represented by a sum of one or more consecutive prime numbers. How many such representations does a given positive int...

E - Goldbach's Conjecture POJ - 2262 In 1742, Christian Goldbach, a German amateur mathematician, sent a letter to Leonhard Euler in which he made the following conjecture: Every even number gre...

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...