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...
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其他好文 时间:
2014-09-14 16:45:37
阅读次数:
201
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...
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其他好文 时间:
2014-09-14 11:22:47
阅读次数:
181
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...
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数据库 时间:
2014-09-14 08:57:26
阅读次数:
234
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...
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编程语言 时间:
2014-09-14 05:47:06
阅读次数:
218
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...
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其他好文 时间:
2014-09-14 00:12:10
阅读次数:
387
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 ...
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其他好文 时间:
2014-09-13 22:52:36
阅读次数:
209
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 ...
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其他好文 时间:
2014-09-13 21:35:25
阅读次数:
252
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...
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数据库 时间:
2014-09-13 20:12:05
阅读次数:
211
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...
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其他好文 时间:
2014-09-13 20:08:35
阅读次数:
179
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
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其他好文 时间:
2014-09-13 20:06:45
阅读次数:
155