建议:在对指针*或->之前一定考虑是否为空指针或未初始化指针。
#include
using namespace std;
struct ListNode {
int val;
ListNode *next;
ListNode(int x) : val(x), next(NULL) {}
};
class Solution {
public:
ListNode* mergeTw...
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其他好文 时间:
2015-06-07 09:38:10
阅读次数:
102
题目:Given a set ofnon-overlappingintervals, insert a new interval into the intervals (merge if necessary).You may assume that the intervals were initia...
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其他好文 时间:
2015-06-06 19:36:03
阅读次数:
107
题目:
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return
it a...
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其他好文 时间:
2015-06-06 15:01:01
阅读次数:
139
Skip lists are a data structure that can be used in place of balanced trees.Skip lists use probabilistic balancing rather than strictly enforced balan...
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其他好文 时间:
2015-06-06 11:58:32
阅读次数:
204
题目描述
To store English words, one method is to use linked lists and store a word letter by letter. To save some space, we may let the words share the same sublist if they share the same suffix. For...
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其他好文 时间:
2015-06-06 10:37:31
阅读次数:
169
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.
我的解决方案:
/**
* Definition for singly-linked list.
...
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其他好文 时间:
2015-06-05 22:39:58
阅读次数:
167
题目: 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 gre...
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其他好文 时间:
2015-06-05 22:26:08
阅读次数:
187
Write a program to find the node at which the intersection of two singly linked lists begins.For example, the following two linked lists: A: ...
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编程语言 时间:
2015-06-05 19:28:52
阅读次数:
131
采用Apache版本spark1.2.1时没有出现乱码,但spark-1.1.0-cdh5.2.1版本中,在分布处理的map函数里对数据进行打印输出进行debug时valrs=rdd.filter(e=>{val(lable,text)=(e._2(2),e._2(3));m.filterItem(lable,text)})
.reduceByKey((x,y)=>m.merge(x,y))
.map{case(x,y)=..
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其他好文 时间:
2015-06-05 17:58:49
阅读次数:
181
作者:iamlaosong
Oracle临时表空间主要用来做查询和存放一些缓冲区数据。临时表空间消耗的主要原因是需要对查询的中间结果进行排序。临时表空间的主要作用:
索引create或rebuild
Order by 或 group by
Distinct 操作
Union 或 intersect 或 minus
Sort-merge joins
analyze
重启数据库可以释放临时表空间,如果不能重启实例,而一直保持问题sql语句的执行,temp表空间会一直增长。即使重建了临时表空间,过一段时间后,临...
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数据库 时间:
2015-06-05 15:46:15
阅读次数:
179