摘要： Description Fermat's theorem states that for any prime number p and for any integer a > 1, ap = a (mod p). That is, if we raise a to the pth power and 阅读全文

摘要： Description There are so many different religions in the world today that it is difficult to keep track of them all. You are interested in finding out 阅读全文

摘要： 小明自从告别了ACM/ICPC之后，就开始潜心研究数学问题了，一则可以为接下来的考研做准备，再者可以借此机会帮助一些同学，尤其是漂亮的师妹。这不，班里唯一的女生又拿一道数学题来请教小明，小明当然很高兴的就接受了。不过等他仔细读题以后，发现自己也不会做，这下小明囧了：如果回复说自己不懂... 阅读全文

摘要： Angel was caught by the MOLIGPY! He was put in prison by Moligpy. The prison is described as a N * M (N, M #include #include #include #include... 阅读全文

摘要： Given a set of sticks of various lengths, is it possible to join them end-to-end to form a square? Input The first line of input contains N, ... 阅读全文

摘要： A friend of you is doing research on the Traveling Knight Problem (TKP) where you are to find the shortest closed tour of knight moves that vi... 阅读全文

摘要： 小K手中有n张牌，每张牌上有一个一位数的数，这个字数不是0就是5。小K从这些牌在抽出任意张（不能抽0张），排成一行这样就组成了一个数。使得这个数尽可能大，而且可以被90整除。注意：1.这个数没有前导0，2.小K不需要使用所有的牌。Input 每个测试数据输入共2行。 第一行给出一个... 阅读全文

摘要： 裸题O（nlogn）：#include #include #include using namespace std;typedef long long ll;const int maxn=3000000+100;int phi[maxn];void init() { for(i... 阅读全文

摘要： In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of several consecutive ... 阅读全文

摘要： Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 20404 Accepted Submission(s): 1223... 阅读全文