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摘要： A - Crazy Search Many people like to solve hard puzzles some of which may lead them to madness. One such puzzle could be finding a hidden prime number 阅读全文

摘要： 本题地址： https://codeforces.com/contest/1215/problem/B 本场比赛A题题解：https://www.cnblogs.com/liyexin/p/11535519.html B. The Number of Products time limit per 阅读全文

摘要： 恢复内容开始 output standard output The final match of the Berland Football Cup has been held recently. The referee has shown n yellow cards throughout the 阅读全文

摘要： 131072K A digit sum S_b(n)Sb​(n) is a sum of the base-bb digits of nn. Such as S_{10}(233) = 2 + 3 + 3 = 8 S10​(233)=2+3+3=8, S_{2}(8)=1 + 0 + 0 = 1S2 阅读全文

摘要： http://acm.hdu.edu.cn/showproblem.php?pid=2087 一块花布条，里面有些图案，另有一块直接可用的小饰条，里面也有一些图案。对于给定的花布条和小饰条，计算一下能从花布条中尽可能剪出几块小饰条来呢？ Input输入中含有一些数据，分别是成对出现的花布条和小饰条， 阅读全文

摘要： 地址： https://vjudge.net/problem/27861/origin Ilya plays a card game by the following rules. A player has several cards. Each card contains two non-nega 阅读全文

摘要： For each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to know whether the pr 阅读全文

摘要： A - ^&^ Bit operation is a common computing method in computer science ,Now we have two positive integers AA and BB ,Please find a positive integer CC 阅读全文

摘要： 题目地址 http://codeforces.com/contest/1196/problem/B B. Odd Sum Segments time limit per test 3 seconds memory limit per test 256 megabytes input standard 阅读全文

摘要： A very big corporation is developing its corporative network. In the beginning each of the N enterprises of thecorporation, numerated from 1 to N, org 阅读全文