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每日算法之四十七:Valid Number (验证是否为数字)
要想正确的写出这个函数不是件容易的事情,因为要考虑的事情很多: 1)字符串的前后都可能会有空格,但是中间不允许有空格。 2)可能有小数,1.235,或者.3522这种形式 3)可能有指数形式,2e10   2e-1等形式 Validate if a given string is numeric. Some examples: "0" => true " 0.1 " => t...
分类:其他好文   时间:2014-09-14 16:45:37    阅读次数:201
【leetcode】Gray Code
题目: The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the total number of bits in the code, print the...
分类:其他好文   时间:2014-09-14 11:22:47    阅读次数:181
cocos2d-x 添加sqlite3 时 报 lua_Number 错误
1> f:\cocos2d-x\cocos2d-x\external\lua\lua\lua.h(99) : 参见“lua_Number”的声明1>f:\cocos2d-x\cocos2d-x\external\sqlite3-ext\lsqlite3.c(1272): error C2146: 语...
分类:数据库   时间:2014-09-14 08:57:26    阅读次数:234
[leetcode]Plus One @ Python
原题地址:https://oj.leetcode.com/problems/plus-one/题意:Given a non-negative number represented as an array of digits, plus one to the number.The digits are...
分类:编程语言   时间:2014-09-14 05:47:06    阅读次数:218
poj 1007 DNA Sorting (求逆序数)
DNA Sorting Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 83069   Accepted: 33428 Description One measure of ``unsortedness'' in a sequence is the number o...
分类:其他好文   时间:2014-09-14 00:12:10    阅读次数:387
LeetCode 6 ZigZag Conversion
The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility) P A H N A P L S I ...
分类:其他好文   时间:2014-09-13 22:52:36    阅读次数:209
【Hdu】Minimum Inversion Number(逆序,线段树)
利用线段树在nlogn的时间复杂度内求一段数的逆序。 由于给的序列是由0 ~ n -1组成的,求出初始的逆序之后可以递推出移动之后的逆序数。 #include #include #include #include using namespace std; typedef long long LL; const int maxn = 5555; int tree[maxn << 2]; int ...
分类:其他好文   时间:2014-09-13 21:35:25    阅读次数:252
ORACLE,SQLSERVER等数据库如何获取某张表中相同字段最近一条数
SELECT * FROM ( SELECT JBXX.*,row_number() OVER (partition BY WRYMC ORDER BY WRYMC,CJSJ DESC) R   FROM T_WRY_JBXX  JBXX  ) A WHERE R=1...
分类:数据库   时间:2014-09-13 20:12:05    阅读次数:211
Maximum Depth of Binary Tree
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest le...
分类:其他好文   时间:2014-09-13 20:08:35    阅读次数:179
Single Number II
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
分类:其他好文   时间:2014-09-13 20:06:45    阅读次数:155
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