作用：使用一条sql语句进行insert或者update操作，如果存在就update，如果不存在就insert语法：MERGE INTO table_name t1USING (table|view|sub_query) t2ON (join condition) WHEN MATCHED THEN...
分类：
数据库 时间：
2014-06-18 13:42:59
阅读次数：
314
/* 合并排序 O(n*lgn) */ #include using namespace std; #define MAXN 100 int a[MAXN]; void Merge(int a[MAXN],int lef...
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其他好文 时间：
2014-06-18 13:01:30
阅读次数：
229
Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are structurally identical an...
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其他好文 时间：
2014-06-18 12:32:58
阅读次数：
169
题目
Given an array of integers, find two numbers such that they add up to a specific target number.
The function twoSum should return indices of the two numbers such that they add up to the...
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其他好文 时间：
2014-06-18 12:05:44
阅读次数：
244
题目
Given a linked list, swap every two adjacent nodes and return its head.
For example,
Given 1->2->3->4, you should return the list as 2->1->4->3.
Your algorithm should use only const...
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其他好文 时间：
2014-06-18 11:53:39
阅读次数：
138
Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.
For example,
If n = 4 and k = 2, a solution is:
[
[2,4],
[3,4],
[2,3],
[1,2],
[1,3],
[1,4],
]...
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其他好文 时间：
2014-06-18 11:41:52
阅读次数：
156
Given two sorted integer arrays A and B, merge B into A as one sorted array.
Note:
You may assume that A has enough space (size that is greater or equal to
m + n) to
hold additional ele...
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其他好文 时间：
2014-06-17 23:05:13
阅读次数：
246
Given n non-negative integers a1, a2,
..., an, where each represents a point at coordinate (i, ai). n vertical
lines are drawn such that the two endpoints of line i is at (i, ai) and (i,
0). Fin...
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其他好文 时间：
2014-06-17 22:17:43
阅读次数：
325
Given two words word1 and word2, find the minimum number of steps required to convert
word1 to word2. (each operation is counted as 1 step.)
You have the following 3 operations permitted...
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其他好文 时间：
2014-06-17 21:43:38
阅读次数：
219
题目
Merge k sorted
linked lists and return it as one sorted list. Analyze and describe its complexity.
方法
使用归并排序的思想，两两合并，直到最终变成一个。
public ListNode mergeKLists(ArrayList lists) {...
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其他好文 时间：
2014-06-17 21:34:41
阅读次数：
183
