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The Triangle
The Triangle 时间限制:1000 ms  |  内存限制:65535 KB 难度:4 描述 7 3 8 8 1 0 2 7 4 4 4 5 2 6 5 (Figure 1) Figure 1 shows a number triangle. Write a program that calculates the highest sum of ...
分类:其他好文   时间:2014-10-29 21:37:14    阅读次数:213
[LeetCode] Remove Nth Node From End of List
Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re...
分类:其他好文   时间:2014-10-29 18:31:47    阅读次数:191
7.7 使用rollup子句
--向rollup传递一列select division_id,sum(salary) from employees2 group by rollup(division_id);--向rollup传递多列select division_id,job_id,sum(salary) from emplo...
分类:其他好文   时间:2014-10-27 19:07:48    阅读次数:220
Elevator
Problem DescriptionThe highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at wh...
分类:其他好文   时间:2014-10-27 17:29:51    阅读次数:170
Remove Nth Node From End of List
需要额外添加两个相距为n的节点,遍历一遍之后就可以得到结果。/** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(in...
分类:其他好文   时间:2014-10-27 00:21:55    阅读次数:275
LeetCode Remove Nth Node From End of List
Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re...
分类:其他好文   时间:2014-10-24 12:51:42    阅读次数:155
mysql:联合查询
SELECT t1.name, t2.salary FROM employee AS t1 INNER JOIN info AS t2 ON t1.name = t2.name; 可以对数据表使用别名selectt1.id,t2.idfromt1leftjoint2ont1.id=t2.idandt...
分类:数据库   时间:2014-10-23 19:01:34    阅读次数:230
Oracle 外键约束子表、父表
CREATE TABLE employees(     employee_id      NUMBER(6),     last_name        VARCHAR2(25) NOT NULL,     email            VARCHAR2(25),     salary           NUMBER(8,2),     commission_pct   NUMBE...
分类:数据库   时间:2014-10-22 11:02:31    阅读次数:275
Java 反射 应用
利用反射 构造get set 方法: 1 package com.wages.salary.service.common; 2 3 import java.lang.reflect.InvocationTargetException; 4 import java.lang.reflect.Meth....
分类:编程语言   时间:2014-10-21 15:05:34    阅读次数:244
[Leetcode] Remove Nth Node From End of List
Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re...
分类:其他好文   时间:2014-10-21 03:34:24    阅读次数:197
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