1 Introduction Modular arithmetic is a fundamental tool in modern algebra systems. In conjunction with the Chinese remainder theorem it serves as the workhorse in several algorithms computing the gcd, resultant etc. Moreover, it can serve as a very e

#include <bits/stdc++.h> using namespace std; template <typename T> T inverse(T a, T m) { T u = 0, v = 1; while (a != 0) { T t = m / a; m -= t * a; swap(a, m); u -= t * v; swap(u, v); } assert(m == 1); return u; } template <typename T> c

题目: 电音之王 题解: 求数列前n项相乘并取模 思路: ①.这题的乘法是爆long long的,可以通过快速幂的思想去解决(按数位对其中的一个数进行剖分).当然你的乘法会多出一个log的复杂度... ②.O(1)快速乘:一种O(1)复杂度求解整数相乘取模的思路(它对于64位的整型也是适用的): 来自2009年国家集训队论文:骆可强:<论程序底层优化的一些方法与技巧> (参考中附原文链接) typedef long long ll; #define MOL 123456789012345LL

Who Gets the Most Candies? Time Limit:5000MS     Memory Limit:131072KB     64bit IO Format:%I64d & %I64u Submit Status Description N children are sitting in a circle to play a game. The children are numbered from 1 to N in clockwise order. Each of th

Search GO 说明:输入题号直接进入相应题目,如需搜索含数字的题目,请在关键词前加单引号 Problem ID Title Source AC Submit Y 1000 A+B Problem 10983 18765 Y 1036 [ZJOI2008]树的统计Count 5293 13132 Y 1588 [HNOI2002]营业额统计 5056 13607 1001 [BeiJing2006]狼抓兔子 4526 18386 Y 2002 [Hnoi2010]Bounce 弹飞绵羊 43

0x01 base64 直接base64 Decode 得到flag cyberpeace{Welcome_to_new_World!} 0x02 Caesar key为12 的恺撒密码,解密德flag cyberpeace{you_have_learned_caesar_encryption} Tools:http://www.zjslove.com/3.decode/kaisa/index.html 0x03 Morse 摩斯密码 1替换成-,0替换成.,直接解密 11 111 010 00

I am Nexus Master!  The 13th Zhejiang University Programming Contest 参见:http://www.bnuoj.com/bnuoj/problem_show.php?pid=29137 题意就理解错了!!! 之后乱搞就也错了!!! Current Server Time: 2013-08-30 23:29:55 I am Nexus Master! Time Limit: 2000ms Memory Limit: 65536KB

找规律水题... Traveling Cellsperson Time Limit: 1000ms Memory Limit: 65535KB This problem will be judged on UESTC. Original ID: 185264-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:  

状压DP... Kings on a Chessboard Time Limit: 10000ms Memory Limit: 65535KB This problem will be judged on UESTC. Original ID: 185164-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:  

Query on a tree Time Limit: 5000ms Memory Limit: 262144KB   This problem will be judged on SPOJ. Original ID: QTREE64-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:   None Graph

链接:http://www.bnuoj.com/bnuoj/problem_show.php?pid=25585 Current Server Time: 2013-08-27 20:42:26 Robots on a grid Time Limit: 3000ms Memory Limit: 65536KB   64-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Disc

Mini-project description - Rock-paper-scissors-lizard-Spock Rock-paper-scissors is a hand game that is played by two people. The players count to three in unison and simultaneously "throw" one of three hand signals that correspond to rock, paper

Cellphone Typing Time Limit: 5000ms Memory Limit: 131072KB   This problem will be judged on UVA. Original ID: 1252664-bit integer IO format: %lld      Java class name: Main Prev Submit Status Statistics Discuss Next Font Size: + - Type:   None Graph

PROBLEM LINK: PracticeContest Author: adminTester: Kevin AtienzaEditorialist: Ajay K. VermaRussian Translator: Sergey KulikMandarian Translator: Gedi Zheng DIFFICULTY: Medium PREREQUISITES: Combinatorics, Modular Arithmetic PROBLEM: Given two integer

https://en.wikipedia.org/wiki/Euler's_totient_function counts the positive integers up to a given integer n that are relatively prime to n. if two numbers m and n are relatively prime, then φ(mn) = φ(m) φ(n); https://zh.wikipedia.org/wiki/同餘 数学上,同余(英

B-Casting Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 449    Accepted Submission(s): 223 Problem Description Casting around for problems leads us to combine modular arithmetic with differen

题目链接:http://www.bnuoj.com/bnuoj/problem_show.php? pid=17121 2014-04-25 22:59:49 不和谐的长难句1 Time Limit: 8000ms Case Time Limit: 2000ms Memory Limit: 65536KB 64-bit integer IO format: %lld      Java class name: Main pid=17120" class="ui-button ui-wi

Hyperpolyglot Unix Shells: Bash, Fish, Ksh, Tcsh, Zsh grammar | quoting and escaping | charactersvariables | variable expansion | brace, tilde, command, and pathname expansion | special variablesarithmetic and conditional expressionsarrays | associat

鸣人的查克拉 Time Limit: 1000ms Memory Limit: 65536KB 64-bit integer IO format: %lld      Java class name: Main Prev pid=29065#" class="submitprob ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" style="margin:0px 0.1e

Mini-project description - Rock-paper-scissors-lizard-Spock Rock-paper-scissors is a hand game that is played by two people. The players count to three in unison and simultaneously "throw" one of three hand signals that correspond to rock, paper