题目: Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoint....
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其他好文 时间:
2015-10-06 14:06:00
阅读次数:
216
结构查询:
select?table_name?from?user_tables:当前用户的表(一般用这个)
select?table_name?from?all_tables:所有用户的表(一般不用)
select?*?from?user_tab_columns?where?Table_Name=‘表名...
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数据库 时间:
2015-10-06 11:46:27
阅读次数:
200
QUESTION NO: 114
A user performs an update on a table. Shortly after committing the transaction, they realize that they had
an error in their WHERE clause causing the wrong rows to be updated. Which...
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其他好文 时间:
2015-10-05 13:05:26
阅读次数:
134
Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, where "adjace...
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其他好文 时间:
2015-10-04 17:14:57
阅读次数:
294
分页查询按雇员的id号升序取出 oracle的分页一共有三种方式 1.根据rowid来分 select * from t_xiaoxi where rowid in (select rid from (select rownum rn, rid from(select rowid rid, cid....
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数据库 时间:
2015-10-04 13:31:21
阅读次数:
244
Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum.For example:Given the below binary tree and sum ...
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其他好文 时间:
2015-10-04 11:07:36
阅读次数:
137
1 public static List Convert2Object(DataTable dt) where T : new() 2 { 3 List list = new List(); 4 foreach (DataRow ...
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其他好文 时间:
2015-10-04 00:24:00
阅读次数:
155
错误描述: Mysql中添加用户之后可能出现登录时提示ERROR 1045 (28000): Access denied for user的错误.删除user.user中值为NULL的,或更新NULL为test 1)delete from user where user is NULL 2)upda...
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数据库 时间:
2015-10-03 15:32:11
阅读次数:
158
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.struct ListNode { int val; ListNode *...
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其他好文 时间:
2015-10-03 15:30:38
阅读次数:
152
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.思路:使用二分法,将list的中间节点作为根节点,然后分别处理list左半边及右半边,以此递归。struc...
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其他好文 时间:
2015-10-03 14:24:21
阅读次数:
162