题目:
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 is marked as 1 and 0 respectively...
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编程语言 时间:
2015-01-08 15:29:48
阅读次数:
162
题意 有n个空间站 接下n行依次输入n个空间站的x,y,z坐标和半径 求连接全部空间站总共至少要修多长的桥也是裸的最小生成树 注意距离不会小于0 就是两个空间站相交的时候#include#include#include#includeusing namespace std;const int N =...
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其他好文 时间:
2015-01-08 11:09:21
阅读次数:
227
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 elements fro...
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其他好文 时间:
2015-01-08 09:43:18
阅读次数:
169
1几个最重要的快捷键java 自动生成get set方法的快捷键是什么?如果你说的是Eclipse,也许你还说是MyEclipse快捷键: Alt + Shift + S, 等一会,再按 R注释快捷键先敲“/”在敲两个**,然后回车代码助手:Ctrl+Space(简体中文操作系统是Alt+/)快速修...
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系统相关 时间:
2015-01-08 09:26:26
阅读次数:
229
Given a linked list, return the node where the cycle begins. If there is no cycle, return null.
Follow up:
Can you solve it without using extra space?
第一题要求是否有环 从图中可以看出 使用快慢指针 只要有环两者必定会相遇 另外从...
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编程语言 时间:
2015-01-07 14:59:22
阅读次数:
178
问题如果XML有非法字符比如 "·",或者HTML标签。XML在解析的过程中就会出错。就无法正常解析,或者把xml反射成实体。有些字符,像(greater-than>>3符号实体编辑结果描述实体名称实体编号 non-breaking space¡inverted exclamation ma....
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其他好文 时间:
2015-01-07 14:43:25
阅读次数:
245
题目:
Given a linked list, determine if it has a cycle in it.
Follow up:
Can you solve it without using extra space?
思路:使用快慢两个指针。开始时,两个指针同时指向head,之后slow每次前行一步,fast每次前行两步。如果链表有环,这两个指针一定会相遇,如果没有...
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编程语言 时间:
2015-01-07 13:16:22
阅读次数:
172
题目:
Given a linked list, return the node where the cycle begins. If there is no cycle, return null.
Follow up:
Can you solve it without using extra space?
思路:
可以参考
LeetCode: 73 Linked ...
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编程语言 时间:
2015-01-07 13:08:14
阅读次数:
161
The problem:Sort a linked list inO(nlogn) time using constant space complexity.My analysis:The is problem could be elegantly solved by using merge.The...
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其他好文 时间:
2015-01-07 01:50:28
阅读次数:
112
The problem:Sort a linked list inO(nlogn) time using constant space complexity.My analysis:The idea behind this problem is easy : merge sort !But we s...
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其他好文 时间:
2015-01-07 00:28:58
阅读次数:
181