首先看到这题脑子里立刻跳出链表..后来继续看如家的分析说,链表法时间复杂度为O(n*k),肯定会TLE,自己才意识到果然自个儿又头脑简单了 T^T. 看如家的分析没怎么看懂,后来发现这篇自己理解起来更容易(...)共享一下~http://blog.csdn.net/chenguolinblog/article/details/8873444 问题描述:n个人(编号0~(n-1)),从0开始报数,报到(m-1)的退出,剩下的人继续从0开始报数.求胜利者的编号. 编号0~(n-1)是有意义的,因为要…

经典约瑟夫环 }; ; i<=n; i++) { f[i] = (f[i-] + k) % i; } 变形:k是变化的 #include <iostream> #include <stdio.h> #include <string.h> #include <algorithm> #include <stdlib.h> #include <queue> #include <map> using namespace st…

简单说一下约瑟夫环:约瑟夫环是一个数学的应用问题:已知n个人(以编号1,2,3...n分别表示)围坐在一张圆桌周围.从编号为k的人开始报数,数到m的那个人出列:他的下一个人又从1开始报数,数到m的那个人又出列:依此规律重复下去,直到圆桌周围的人全部出列. 想要求出最后剩下的那个人的在初始的时候的编号的话. f[1]=0; f[i]=(f[i-1]+m)%i;  (i>1) 可以推出剩下i个人内叫到m的时候的编号.注意这是逆推.推到最后初始的时候的情况 #include<stdio.h>…

题目链接: POJ  1012: id=1012">http://poj.org/problem?id=1012 HDU 1443: pid=1443">http://acm.hdu.edu.cn/showproblem.php? pid=1443 约瑟夫环(百度百科): fr=aladdin" target="_blank">http://baike.baidu.com/view/717633.htm?fr=aladdin Descri…

Description Recently you must have experienced that when too many people use the BBS simultaneously, the net becomes very, very slow.To put an end to this problem, the Sysop has developed a contingency scheme for times of peak load to cut off net acc…

Description Let’s play a stone removing game. Initially, n stones are arranged on a circle and numbered 1, …, n clockwise (Figure 1). You are also given two numbers k and m. From this state, remove stones one by one following the rules explained belo…

 Joseph  The Joseph's problem is notoriously known. For those who are not familiar with the original problem: from among n people, numbered 1, 2, ..., n, standing in circle every mth is going to be executed and only the life of the last remaining per…

题意: 变形的约瑟夫环,最初为每个人编号1到n,第i次删去报号为i的人,然后从它的下一个人开始重新从1开始报号,问最终剩下第几号人? 分析: 首先看一下裸的约瑟夫环问题: 共n个人,从1开始报数,报到k的人从环中退出,问最后剩下的一个人的编号是多少? 为取模方便,假设下标从0开始,倒推分析: 假设该轮有n个人,那么上一轮(n+1)人,编号为0的人上一轮编号为k,也即编号为f[n]的人上一轮编号为(f[n]+k)%(n+1). 我们知道最后剩下的人在最后一轮编号肯定为0,那么这样不断倒推就可以推出…

题目链接:http://poj.org/problem?id=3517 And Then There Was One Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 5014   Accepted: 2685 Description Let’s play a stone removing game. Initially, n stones are arranged on a circle and numbered 1, ……

UVA 1394 And Then There Was One / Gym 101415A And Then There Was One / UVAlive 3882 And Then There Was One / POJ 3517 And Then There Was One / Aizu 1275 And Then There Was One (动态规划,思维题) Description Let's play a stone removing game. Initially, n ston…