题目: 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...
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编程语言 时间:
2014-07-22 22:47:16
阅读次数:
252
一 建表和现象的过程如下CREATE TABLE t1 (id1 INT, a1 INT, b1 INT, PRIMARY KEY(id1));CREATE TABLE t3 (id3 INT UNIQUE, a3 INT, b3 INT);INSERT INTO t1 VALUES (1, 1, ...
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数据库 时间:
2014-07-22 22:45:34
阅读次数:
308
Givenn, generate all structurally uniqueBST's(binary search trees) that store values 1...n.For example,Givenn= 3, your program should return all 5 uni...
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其他好文 时间:
2014-07-22 22:42:33
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243
题目: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 w...
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编程语言 时间:
2014-07-22 22:41:14
阅读次数:
396
Now I believe thoughts leading to DP is brutal DFS.. DFS is brutal force enumeration, but that's too much and naive. We need pruning. So, DFS + Prunin...
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其他好文 时间:
2014-07-22 22:40:34
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183
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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其他好文 时间:
2014-07-22 00:28:36
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169
The use of laser machines and systems in the modern world has increased to a great level. This is because of the unique end results that the user achi...
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其他好文 时间:
2014-07-22 00:15:34
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224
本节,我们将对leetcode上有关DP问题的题目做一个汇总和分析。
1.题目来源
Interleaving String
动态规划 二叉树
Unique Binary Search Trees 动态规划
二叉树
Word Break 动态规划
N/A
Word Break II 动态规划
N/A
Palindrome Partitioning 动态规划
N/A
...
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其他好文 时间:
2014-07-21 15:47:05
阅读次数:
232
本节,我们将对leetcode上有关DP问题的题目做一个汇总和分析。
1.题目来源
Interleaving String
动态规划 二叉树
Unique Binary Search Trees 动态规划
二叉树
Word Break 动态规划
N/A
Word Break II 动态规划
N/A
Palindrome Partitioning 动态规划
N/A
...
分类:
其他好文 时间:
2014-07-21 15:21:05
阅读次数:
189
modelarray('code', 'unique', 'criteria' =>array('condition' =>'schoolid=:schoolid','params' => array(':schoolid'=> $this->schoolid)))Controller$model-...
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其他好文 时间:
2014-07-21 14:21:01
阅读次数:
229