题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=6312 Problem Description Alice and Bob are playing a game.The game is played on a set of positive integers from 1 to n.In one step, the player can choose a positive integer from the set, and erase all of…

bryce1010模板 http://acm.hdu.edu.cn/showproblem.php?pid=6312 输出前几项,都是"Yes" #include <bits/stdc++.h> using namespace std; int main() { int n; while(cin>>n) { cout<<"Yes"<<endl; } //cout << "Hello world!&…

2018 Multi-University Training Contest 2 6312.Game 博弈,直接官方题解,懒了. 考虑将游戏变成初始时只有2~n,如果先手必胜的话,那么先手第一步按这样取就获胜了:如果后手必胜的话,那 么先手第一步取走1就获胜了.所以全输出Yes就行了. 代码: //1004-6312-博弈-真签到题 #include<iostream> #include<cstdio> #include<cstring> #include<alg…

Problem Description Alice and Bob are playing a game.The game is played on a set of positive integers from 1 to n.In one step, the player can choose a positive integer from the set, and erase all of its divisors from the set. If a divisor doesn't exi…

2018 Multi-University Training Contest 2) HDU 6311 Cover HDU 6312 Game HDU 6313 Hack It HDU 6314 Matrix HDU 6315 Naive Operations HDU 6318 Swaps and Inversions…

Saving HDU Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 7194    Accepted Submission(s): 3345 Problem Description 话说上回讲到海东集团面临内外交困,公司的元老也只剩下XHD夫妇二人了.显然,作为多年拼搏的商人,XHD不会坐以待毙的.  一天,当他正在苦思冥想解困良策的…

http://acm.hdu.edu.cn/showproblem.php?pid=3037 Lucas定理模板. 现在才写,noip滚粗前兆QAQ #include<cstdio> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; int jc[100003]; int p; int ipow(int x, int b) { ll t = 1, w = x;…

http://acm.hdu.edu.cn/showproblem.php?pid=4859 题目大意: 在一个矩形周围都是海,这个矩形中有陆地,深海和浅海.浅海是可以填成陆地的. 求最多有多少条方格线满足两侧分别是海洋和陆地 这道题很神 首先考虑一下,什么情况下能够对答案做出贡献 就是相邻的两块不一样的时候 这样我们可以建立最小割模型,可是都说是最小割了 无法求出最大的不相同的东西 所以我们考虑转化,用总的配对数目 - 最小的相同的对数 至于最小的相同的对数怎么算呢? 我们考虑这样的构造方法:…

Special equations Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4569 Description Let f(x) = a nx n +...+ a 1x +a 0, in which a i (0 <= i <= n) are all known integers. We call f(x) 0 (mod…

The kth great number Time Limit:1000MS     Memory Limit:65768KB     64bit IO Format:%I64d & %I64u Submit Status Practice HDU 4006 Description Xiao Ming and Xiao Bao are playing a simple Numbers game. In a round Xiao Ming can choose to write down a nu…