package DFS; import java.util.ArrayList; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import java.util.PriorityQueue; import java.util.Stack; public class RealDFS { public static void main(String

1.研究范围 1)多叉树,图的遍历 2)回溯法的解空间树=多叉树的遍历 2.研究方法 我们现在研究的是多叉树的遍历,突然想到为什么不能直接用二叉树的遍历方法呢?我们抱着这个问题,先找到多叉树的结构不同于二叉树的地方,然后研究二叉树的遍历,找到其适用范围的限制和多叉树不能采用二叉树遍历的原因,并解决,最后就得到了我们的多叉树的遍历方法. 2.1 从二叉树和多叉树|图的结构来研究 1)二叉树 public class TreeNode { int val; TreeNode left; TreeNo

来之不易的2017第一发ac http://poj.org/problem?id=2386 Lake Counting Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 31474   Accepted: 15724 Description Due to recent rains, water has pooled in various places in Farmer John's field, which is repr

题目: Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label and each n

Cash Cow Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 题目链接:http://acm.sdut.edu.cn/sdutoj/problem.php?action=showproblem&problemid=2721 Years before Candy Crush became the wildly popular game that may lead developer Saga to a multi-billi

最后一例,搞得快.三天之内走了一次.. 下一步,面象对像的javascript编程. function Dictionary(){ var items = {}; this.has = function (key) { return key in items; }; this.set = function(key, value){ items[key] = value; }; this.remove = function(key){ if (this.has(key)){ delete item

这道题目甚长, 代码也是甚长, 但是思路却不是太难.然而有好多代码实现的细节, 确是十分的巧妙. 对代码阅读能力, 代码理解能力, 代码实现能力, 代码实现技巧, DFS方法都大有裨益, 敬请有兴趣者耐心细读.(也许由于博主太弱, 才有此等感觉). 题目: UVa 1103 In order to understand early civilizations, archaeologists often study texts written in  ancient languages. One

  fengyun@fengyun-server:~/learn/acm/poj$ cat 1979.cpp #include<cstdio> #include<iostream> #include<string> #include<algorithm> #include<iterator> #include<sstream>//istringstream #include<cstring> #include<que

The Game of EfilTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=88443#problem/C Description Almost anyone who has ever taken a class in computer science is familiar with the “Game of Life,” John Conw

UVA 572     DFS(floodfill)  用DFS求连通块 Time Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M

转载请注明出处:viewmode=contents">http://blog.csdn.net/u012860063?viewmode=contents 题目链接:http://poj.org/problem?id=1562 --------------------------------------------------------------------------------------------------------------------------------------

Lake Counting Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 34735   Accepted: 17246 Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 10

Lake Counting Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 49414   Accepted: 24273 Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 10

题目链接:http://poj.org/problem?id=2386 Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 100; 1 <= M <= 100) squares. Each square contains either wa

Lake Counting Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 100; 1 <= M <= 100) squares. Each square contains either water ('W') or dry land

描述 Bessie was munching on tender shoots of grass and, as cows do, contemplating the state of the universe. She noticed that she only enjoys the grass on the wide expanses of pasture whose elevation is at the base level of the farm. Grass from elevati

Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label and each neigh

125. Shtirlits time limit per test: 0.25 sec. memory limit per test: 4096 KB There is a checkered field of size N x N cells (1 Ј N Ј 3). Each cell designates the territory of a state (i.e. N2 states). Each state has an army. Let A [i, j] be the numbe

Lake Counting Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 40370   Accepted: 20015 Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 10

Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label and each neigh

Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label and each neigh