Cyclic GCDs 题目链接 题面描述 有\(n\)个点,每个点有权值. 现有排列\(P\),\(p_i\)表示\(i\)个点向\(p_i\)连了一条边. 显然会形成若干个简单环.每个简单环的权值定义为环上最小的权值,一张图的权值定义为所有环的权值的乘积. 所有形成了\(k\)个简单环的图的权值和记为\(b_k\) 现在要求\(b_1,b_2...b_n\)的最大公因数. 输出对大质数取模. \(n\le10^5\) 解题思路 首先可以发现,顺序无关紧要,为了方便处理,我们把权值从小到大排序…

A - Thumbnail 题意简述:给出N个数,找出N个数中和这N个数平均值绝对值最小的数 根据题意写代码即可= = #include <bits/stdc++.h> #define fi first #define se second #define pii pair<int,int> #define pdi pair<db,int> #define mp make_pair #define pb push_back #define enter putchar('\…

A. Hongcow Learns the Cyclic Shift 题目连接: http://codeforces.com/contest/745/problem/A Description Hongcow is learning to spell! One day, his teacher gives him a word that he needs to learn to spell. Being a dutiful student, he immediately learns how t…

题目链接: C. Letters Cyclic Shift 题意: 现在一串小写的英文字符,每个字符可以变成它前边的字符即b-a,c-a,a-z这样,选一个字串变换,使得得到的字符串字典序最小; 思路: 贪心,尽量让前边的字典序变小; AC代码: #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <cmath> #inclu…

Cyclic Nacklace Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1946    Accepted Submission(s): 854 Problem Description CC always becomes very depressed at the end of this month, he has checked…

Cyclic Nacklace Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5663    Accepted Submission(s): 2557 Problem Description CC always becomes very depressed at the end of this month, he has checke…

When performing inverse kinematics (IK) on a complicated bone chain, it can become too complex for an analytical solution. Cyclic Coordinate Descent (CCD) is an alternative that is both easy to implement and efficient to process.逆运动学问题一般采用解析法和基于Jacob…

Cyclic Nacklace Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2716    Accepted Submission(s): 1244 Problem Description CC always becomes very depressed at the end of this month, he has checked…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1853 There are N cities in our country, and M one-way roads connecting them. Now Little Tom wants to make several cyclic tours, which satisfy that, each cycle contain at least two cities, and each city b…

Problem Description CC always becomes very depressed at the end of this month, he has checked his credit card yesterday, without any surprise, there are only 99.9 yuan left. he is too distressed and thinking about how to tide over the last days. Bein…