Valid Number
Validate if a given string is numeric.
Some examples:
"0" => true
" 0.1 " => true
"abc" => false
"1 a" => false
"2e10" => true
Note: It is intended for the pro...
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其他好文 时间：
2015-03-31 14:42:56
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129
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
For example,
"A man, a plan, a canal: Panama" is
a palindrome.
"race a car" is not a
...
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其他好文 时间：
2015-03-31 12:54:59
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114
题目链接：valid-sudoku
import java.util.Arrays;
/**
*
Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.
The Sudoku board could be partially filled, where empty cells ...
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其他好文 时间：
2015-03-31 12:52:27
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208
1317. Sudoku
Constraints
Time Limit: 10 secs, Memory Limit: 32 MB
Description
Sudoku is a placement puzzle. The goal is to enter a symbol in each cell of a grid, most frequently a 9 ...
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其他好文 时间：
2015-03-31 09:03:13
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209
1162. Sudoku
Constraints
Time Limit: 1 secs, Memory Limit: 32 MB , Special Judge
Description
Sudoku is a very simple task. A square table with 9 rows and 9 columns is divided to 9 sm...
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其他好文 时间：
2015-03-31 09:02:53
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124
1009. K-based Numbers
Time limit: 1.0 second
Memory limit: 64 MB
Let’s consider K-based numbers, containing exactly N digits. We define a number to be valid if itsK-based notation doesn’t c...
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其他好文 时间：
2015-03-30 09:30:12
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116
Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers.You may ...
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其他好文 时间：
2015-03-29 15:05:21
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115
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring.For "(()", the longest valid parentheses substring is "()", which ha...
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其他好文 时间：
2015-03-29 13:41:53
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124
Restore IP Addresses
Given a string containing only digits, restore it by returning all possible valid IP address combinations.
For example:
Given "25525511135",
return ["255.255.11.135", ...
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其他好文 时间：
2015-03-28 23:20:39
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416
Valid PalindromeGiven a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a pla...
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编程语言 时间：
2015-03-28 20:22:57
阅读次数：
132
