UVA 11255 - Necklace 题目链接 题意:一个链子,由三种颜色的珠子构成,现在给定三种颜色的珠子个数,求能组成多少种(旋转,翻转算同一种) 思路:利用ploya定理,然后分类讨论即可 代码: #include <cstdio>#include <cstring>typedef long long ll;const int N = 45;int t, a
题目链接:http://acm.nyist.net/JudgeOnline/problem.php?pid=688 此题题解 不太懂,因为对这些概念,定理太模糊,理解起来比较困难,不过想想还是应该把代码写出来; 题意:给你一个数 n ,代表 n 种颜色和n个珠子,问你可以组合多少种长度为n的项链;不需要用掉n种颜色,项链的旋转和翻转都是为同一条 题解: http://pan.baidu
原题: Problem Description Mery has a beautiful necklace. The necklace is made up of N magic balls. Each ball has a beautiful value. The balls with the same beautiful value look the same, so if two