Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array whic...
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其他好文 时间:
2014-08-12 00:12:03
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209
The Unique MSTTime Limit:1000MSMemory Limit:10000KTotal Submissions:20430Accepted:7186DescriptionGiven a connected undirected graph, tell if its minim...
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其他好文 时间:
2014-08-12 00:09:23
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273
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of ...
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其他好文 时间:
2014-08-11 23:52:23
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209
SQL 约束解说2009-04-27 09:29约束主要包含:NOT NULL UNIQUE PRIMARY KEY FOREIGN KEY CHECK DEFAULT 1、not null :用于控制字段的内容一定不能为空(NULL)。 使用方法 :Create table MyTable ( i...
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数据库 时间:
2014-08-11 20:55:42
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270
Given a collection of numbers that might contain duplicates, return all possible unique permutations.
For example,
[1,1,2] have
the following unique permutations:
[1,1,2], [1,2,1],
and [2,1...
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其他好文 时间:
2014-08-11 17:49:32
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201
描述:使用了递归,有些计算是重复的,用了额外的空间,Version 1是m*nBonus:一共走了m+n步,例如 m = 2, n = 3 [#, @, @, #, @],所以抽象成数学问题,解是C(m + n, m)代码: 1 class Solution: 2 # @return an ...
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其他好文 时间:
2014-08-11 17:06:32
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155
The Unique MST
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 20421
Accepted: 7183
Description
Given a connected undirected graph, tell if its minimum spann...
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其他好文 时间:
2014-08-11 15:07:32
阅读次数:
213
#include #include using namespace std;int a[10];int main(){ int i; for(i = 0;i<=9;i++) { scanf("%d",&a[i]); } int k = unique(a,a...
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其他好文 时间:
2014-08-11 14:57:32
阅读次数:
151
The Unique MST
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 20421
Accepted: 7183
Description
Given a connected undirected graph, tell if its minimum s...
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其他好文 时间:
2014-08-11 11:57:22
阅读次数:
293
本文主要解决MySQL中如何删除unique key约束
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数据库 时间:
2014-08-10 21:10:01
阅读次数:
327