很简单,求欧拉回路.并且输出. 只重点说一下要用栈来控制输出. 为啥,如图: 如果不用栈,那么1->2->3->1就回来了,接着又输出4->5,发现这根本连接不上去,所以如果用栈的话,就会保存一条完整的路径咯. 因为是无向图,只要满足每个点的度数都是偶数的话就一定存在合法的欧拉回路了. 召唤代码君: #include <iostream> #include <cstring> #include <cstdio> using namespace s…

题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=5730 Description Perhaps the sea‘s definition of a shell is the pearl. However, in my view, a shell necklace with n beautiful shells contains the most sincere feeling for my best lover Arrietty, but…

Shell Necklace Time Limit: 16000/8000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 534    Accepted Submission(s): 227 Problem Description Perhaps the sea‘s definition of a shell is the pearl. However, in my view,…

Necklace/center> 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5727 Description SJX has 2*N magic gems. N of them have Yin energy inside while others have Yang energy. SJX wants to make a necklace with these magic gems for his beloved BHB. To avoid…

Necklace Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2083    Accepted Submission(s): 747 Problem Description Mery has a beautiful necklace. The necklace is made up of N magic balls. Each ba…

/* ID: vincent63 LANG: C TASK: beads */ #include <stdio.h> #include<stdlib.h> #include<string.h> int findmax(char s[],int n){ int i,j,count,max,l,r; char left,right; max=; count=; int p; ,j=;j<n;i++,j++){ l=i; r=j; while(s[l]=='w'){ l…

[BZOJ1789][BZOJ1830][Ahoi2008]Necklace Y型项链 试题描述 欢乐岛上众多新奇的游乐项目让小可可他们玩的非常开心.现在他们正在玩比赛串项链的游戏,谁串的最快就能得到优厚的奖品.这可不是普通的项链,而是一种Y型项链,项链的最中间有一颗大珍珠作为结合点,从大珍珠上连出来3条由各种宝石串起来的链子.比赛的规则是这样的:每次可以从三条链子中某一条的一端取下来一个宝石,或者安上去一个宝石,称为一次操作,经过若干次操作,最终使得三条链子完全相同.想要赢得比赛,那么只能使用…

Description Beads of red, blue or green colors are connected together into a circular necklace of n beads ( n < 24 ). If the repetitions that are produced by rotation around the center of the circular necklace or reflection to the axis of symmetry ar…

Accepted Necklace Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3136 Accepted Submission(s): 1213 Problem Description I have N precious stones, and plan to use K of them to make a necklace for m…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=2660 Accepted Necklace Description I have N precious stones, and plan to use K of them to make a necklace for my mother, but she won't accept a necklace which is too heavy. Given the value and the weight…

题目链接: http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=995 Problem D: The Necklace  My little sister had a beautiful necklace made of colorful beads. Two successive beads in the necklace shared a c…

4423: Necklace Description baihacker bought a necklace for his wife on their wedding anniversary. A necklace with N pearls can be treated as a circle with N points where the distance between any two adjacent points is the same. His wife wants to colo…

P1203 [USACO1.1]坏掉的项链Broken Necklace 标签 搜索/枚举 USACO 难度 普及- 题目描述 你有一条由N个红色的,白色的,或蓝色的珠子组成的项链(3<=N<=350),珠子是随意安排的. 这里是 n=29 的二个例子: 第一和第二个珠子在图片中已经被作记号. 图片 A 中的项链可以用下面的字符串表示: brbrrrbbbrrrrrbrrbbrbbbbrrrrb 假如你要在一些点打破项链,展开成一条直线,然后从一端开始收集同颜色的珠子直到你遇到一个不同的颜色珠…

UVA10054 The Necklace 链接:http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18806 [思路] 欧拉回路. 把每一种颜色看作结点,每一个珠子看作边,构图后求欧拉回路即用所有的珠子构成一条项链. 需要注意的是ans的加入是逆序的,G记录的是边出现的次数. [代码] #include<cstdio> #include<queue> #include<vector> #includ…

Problem Description I have N precious stones, and plan to use K of them to make a necklace for my mother, but she won't accept a necklace which is too heavy. Given the value and the weight of each precious stone, please help me find out the most valu…

Necklace of Beads Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 7763   Accepted: 3247 Description Beads of red, blue or green colors are connected together into a circular necklace of n beads ( n < 24 ). If the repetitions that are pro…

ZeptoLab Code Rush 2015 D. Om Nom and Necklace [题意] 给出一个字符串s,判断其各个前缀是否是 ABABA…ABA的形式(A和B都可以为空,且A有Q+1个,B有Q个,Q给定). [官方题解] 对于前缀P,我们可以把它拆成P=SSSS…SSSST,其中T是S的前缀.显然可以用KMP算法,时间复杂度是O(n). 当T=S:P=SSS…S.假设S出现了R次.如果转换为ABABAB…ABABA的形式,A和B是由几个S组成,而且最后的A一定是P的一个后缀.由…

D. Om Nom and Necklace time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output One day Om Nom found a thread with n beads of different colors. He decided to cut the first several beads from this th…

  Description Beads of red, blue or green colors are connected together into a circular necklace of n beads ( n < ). If the repetitions that are produced by rotation around the center of the circular necklace or reflection to the axis of symmetry are…

Necklace of Beads Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 7874   Accepted: 3290 Description Beads of red, blue or green colors are connected together into a circular necklace of n beads ( n < 24 ). If the repetitions that are pro…

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 or more balls have the same beautiful value, we just count it once. We define t…

Problem Description I have N precious stones, and plan to use K of them to make a necklace for my mother, but she won't accept a necklace which is too heavy. Given the value and the weight of each precious stone, please help me find out the most valu…

Necklace of Beads Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 7451   Accepted: 3102 Description Beads of red, blue or green colors are connected together into a circular necklace of n beads ( n < 24 ). If the repetitions that are pro…

The Necklace  My little sister had a beautiful necklace made of colorful beads. Two successive beads in the necklace shared a common color at their meeting point. The figure below shows a segment of the necklace: But, alas! One day, the necklace was…

1789: [Ahoi2008]Necklace Y型项链 Time Limit: 1 Sec  Memory Limit: 64 MBSubmit: 421  Solved: 258[Submit][Status][Discuss] Description 欢乐岛上众多新奇的游乐项目让小可可他们玩的非常开心.现在他们正在玩比赛串项链的游戏,谁串的最快就能得到优厚的奖品.这可不是普通的项链,而是一种Y型项链,项链的最中间有一颗大珍珠作为结合点,从大珍珠上连出来3条由各种宝石串起来的链子.比赛的规…

Problem Description SJX has 2*N magic gems. N of them have Yin energy inside while others have Yang energy. SJX wants to make a necklace with these magic gems for his beloved BHB. To avoid making the necklace too Yin or too Yang, he must place these…

Necklace Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 327680/327680 K (Java/Others)Total Submission(s): 709    Accepted Submission(s): 245 Problem Description One day , Partychen gets several beads , he wants to make these beads a necklace…

题目连接:http://acm.hdu.edu.cn/showproblem.php?pid=3874 Necklace Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3929    Accepted Submission(s): 1296 Problem Description Mery has a beautiful neckla…

hdu 5730 Shell Necklace 题意:求递推式\(f_n = \sum_{i=1}^n a_i f_{n-i}\),模313 多么优秀的模板题 可以用分治fft,也可以多项式求逆 分治fft 注意过程中把r-l+1当做次数界就可以了,因为其中一个向量是[l,mid],我们只需要[mid+1,r]的结果. 多项式求逆 变成了 \[ A(x) = \frac{f_0}{1-B(x)} \] 的形式 要用拆系数fft,直接把之前的代码复制上就可以啦 #include <iostream…

最小表示法 这是一个简单的字符串算法,其解决的问题如下: 给定一个字符串\(S\),长度为\(n\),如果把它的最后一个字符不断放到最前面,会得到\(n\)个不同的字符串,那么我们称这\(n\)个字符串是循环同构的.这\(n\)个字符串中字典序最小的一个,我们就称为\(S\)的最小表示. \(For\ example:\) \(S=abcda,S_1=aabcd,S_2=daabc,S_3=cdaab,S_4=bcdaa\) 其中,\(S\)的最小表示为\(S_1\). 了解了概念以后,我们将介…