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ZOJ 2587 Unique Attack 判断最小割是否唯一
很裸的判断最小割是否唯一。判断方法是先做一遍最大流求最小割,然后从源点和汇点分别遍历所有能够到达的点,看是否覆盖了所有的点,如果覆盖了所有的点,那就是唯一的,否则就是不唯一的。#include #include #include #include #include #include #include...
分类:其他好文   时间:2014-07-28 23:55:24    阅读次数:570
LeetCode Unique Binary Search Trees II
class Solution {private: vector res;public: vector generateTrees(int n) { res.clear(); res = dfs(1, n + 1); return res; ...
分类:其他好文   时间:2014-07-27 23:28:19    阅读次数:195
POJ - 1679 The Unique MST (次小生成树)
Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undirected graph G = (V, E). A spanning tree of...
分类:其他好文   时间:2014-07-26 17:19:22    阅读次数:401
Leetcode--Combination Sum II
Problem Description: Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T. Each number in C may only b...
分类:其他好文   时间:2014-07-26 15:24:02    阅读次数:252
unique() 去重函数
unique()函数是一个去重函数,STL中unique的函数 unique的功能是去除相邻的重复元素(只保留一个),还有一个容易忽视的特性是它并不真正把重复的元素删除。他是c++中的函数,所以头文件要加#include,具体用法如下: int num[100]; unique(num,mun+n)...
分类:其他好文   时间:2014-07-26 14:58:50    阅读次数:297
【leetcode刷题笔记】4Sum
Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum of ...
分类:其他好文   时间:2014-07-25 14:13:21    阅读次数:317
LeetCode_61uniquePaths [Unique Paths]
#pragma warning(disable:4996) #include <cstdio> #include <Windows.h> #include <tchar.h> /* submit time : 3 1. Time Limit Exceeded 23, 12 request : A robot is located at the top-left corn...
分类:其他好文   时间:2014-07-25 11:40:41    阅读次数:315
[LeetCode] Unique Paths
A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).The robot can only move either down or right at any po...
分类:其他好文   时间:2014-07-25 10:54:31    阅读次数:229
POJ 1679:The Unique MST(次小生成树&&Kruskal)
The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 19941   Accepted: 6999 Description Given a connected undirected graph, tell if its min...
分类:其他好文   时间:2014-07-24 23:36:24    阅读次数:403
Leetcode--Combination Sum
Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T. The same repeated number may be chosen from C unlimited numb...
分类:其他好文   时间:2014-07-24 23:18:03    阅读次数:293
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