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Making Properties Nonenumerable
We implemented a Set class by using  "object id" properties to map objects.  Every object has a unique object id. In order to ensure the same object is added only once, we make the id a property of th...
分类:其他好文   时间:2014-08-19 12:53:24    阅读次数:200
std::map插入已存在的key时,key对应的内容不会被更新
std::map插入已存在的key时,key对应的内容不会被更新,如果不知道这一点,可能会造成运行结果与预期的不一致“Because element keys in amapare unique, the insertion operation checks whether each inserte...
分类:其他好文   时间:2014-08-19 10:38:03    阅读次数:226
[LeetCode] Permutation Sequence
The set [1,2,3,…,n] contains a total of n! unique permutations.By listing and labeling all of the permutations in order, We get the following sequence...
分类:其他好文   时间:2014-08-18 23:29:23    阅读次数:207
Unique Binary Search Trees II
Given n, generate all structurally unique BST's (binary search trees) that store values 1...n.For example,Given n = 3, your program should return all ...
分类:其他好文   时间:2014-08-18 21:58:52    阅读次数:260
HDU 4888 Redraw Beautiful Drawings(最大流)
题目大意:给你一个n,m,k。n行,m列。然后给你每一行的总和,与每一列的总和,让你在这个n*m的矩阵里面填一个小于等于k的数字,使得满足每一列,每一行的和。如果没有输出“Impossible”,有多解输出“Not Unique”,有唯一的解输出“Unique”,并输出他的解。 从源点到每一行的和建边容量为它的总和,从汇点到列建边容量为它的总和。然后行到列建边容量为数据上限K。然后求是否存在...
分类:Windows程序   时间:2014-08-18 18:45:52    阅读次数:504
UVA - 10892 LCM Cardinality (枚举因子)
A pair of numbers has a unique LCM but a single number can be the LCM of more than one possible pairs. Forexample 12 is the LCM of (1, 12), (2, 12), (3,4) etc. For a given positive integer N, the ...
分类:其他好文   时间:2014-08-18 16:25:24    阅读次数:240
Unique Binary Search Trees
Given n, how many structurally unique BST's (binary search trees) that store values 1...n?For example,Given n = 3, there are a total of 5 unique BST's...
分类:其他好文   时间:2014-08-18 00:03:13    阅读次数:189
链表的特有算法操作
10.42 使用list的算法实现排序和删除重复元素。#include#include#include#includeusing namespace std;void elimDup(list &words){ words.sort(); words.unique();}bool isS...
分类:其他好文   时间:2014-08-17 22:39:52    阅读次数:269
ado.net连接数据库的用法
一、简单介绍ADO.NET System.Data:DataTable,DataSet,DataRow,DataColumn,DataRelation,Constraint System.Data.Common(各种数据访问类的基类和接口):DataColumnMapping,DataTableMapping System.Data.SqlClient(对Sql Server进行操作的数据访...
分类:数据库   时间:2014-08-17 18:36:42    阅读次数:304
Combination Sum II
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....
分类:其他好文   时间:2014-08-17 17:03:22    阅读次数:184
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