随笔分类 - 数学
摘要：C. Mind Control time limit per test1 second memory limit per test256 megabytes You and your n−1 friends have found an array of integers a1,a2,…,an. Yo
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摘要：C. Everyone is a Winner! On the well known testing system MathForces, a draw of n rating units is arranged. The rating will be distributed according t
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摘要：F2. Wrong Answer on test 233 (Hard Version) Your program fails again. This time it gets "Wrong answer on test 233" . This is the harder version of the
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摘要：C. Tile Painting Ujan has been lazy lately, but now has decided to bring his yard to good shape. First, he decided to paint the path from his house to
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摘要：D. Power Products You are given n positive integers a1,…,an, and an integer k≥2. Count the number of pairs i,j such that 1≤i using namespace std; cons
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摘要：C. p binary Vasya will fancy any number as long as it is an integer power of two. Petya, on the other hand, is very conservative and only likes a sing
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摘要：F. Bits And Pieces 题面 You are given an array 𝑎 of 𝑛 integers. You need to find the maximum value of 𝑎𝑖|(𝑎𝑗&𝑎𝑘) over all triplets (𝑖,𝑗,𝑘) su
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摘要：G. Polygons Description You are given two integers 𝑛 and 𝑘. You need to construct 𝑘 regular polygons having same circumcircle, with distinct number
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摘要：BC都被hack的人生，痛苦。 下面是题解的表演时间： A. QAQ "QAQ" is a word to denote an expression of crying. Imagine "Q" as eyes with tears and "A" as a mouth. Now Diamond h
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摘要：A. Short Program link http://codeforces.com/contest/878/problem/A describe Petya learned a new programming language CALPAS. A program in this language
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摘要：D. Winter is here 题目连接： http://codeforces.com/contest/839/problem/D Description Winter is here at the North and the White Walkers are close. John Snow
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摘要：Lucky Coins 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5985 Description Bob has collected a lot of coins in different kinds. He wants to know whi
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摘要：D. Anton and School 2 题目连接： http://codeforces.com/contest/785/problem/D Description As you probably know, Anton goes to school. One of the school subj
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摘要：D. Artsem and Saunders 题目连接： http://codeforces.com/contest/765/problem/D Description Artsem has a friend Saunders from University of Chicago. Saunders
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摘要：B. Chloe and the sequence 题目链接 http://codeforces.com/contest/743/problem/B 题面 Chloe, the same as Vladik, is a competitive programmer. She didn't have
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摘要：D. Taxes 题目链接 http://codeforces.com/contest/735/problem/D 题面 Mr. Funt now lives in a country with a very specific tax laws. The total income of mr. Fu
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摘要：GCD is Funny 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5902 Description Alex has invented a new game for fun. There are n integers at a board an
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摘要：Taco Stand 题目连接： https://www.hackerrank.com/contests/ieeextreme challenges/challenges/taco stand Description An editorial for this problem is availabl
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摘要：Mr. Pippo's Pizza 题目连接： https://www.hackerrank.com/contests/ieeextreme challenges/challenges/mr pippos pizza Description Mr. Pippo wants to start a ne
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摘要：Back to Square 1 题目连接： https://www.hackerrank.com/contests/ieeextreme challenges/challenges/back to square 1 Description The game “Back to Square 1” i
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