有一个由各种括号组成的字符串,判断其是否合法 合法准则即是否成对匹配(())合法({])不合法())(不合法思路:用栈模拟即可 class Solution {public: bool isValid(string s) { stack stk; for (size_t i = 0; i < s.s...
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其他好文 时间:
2015-04-01 11:00:27
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82
题目:
Evaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are +, -, *, /. Each operand may be an integer or another expression.Some examples:[“2”, “1”, “+”, “3”, “...
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其他好文 时间:
2015-04-01 00:28:51
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140
Evaluate Reverse Polish Notation问题:Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand m...
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其他好文 时间:
2015-03-31 20:04:55
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88
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
打开终端,cd到静态库的地方。输入命令
.framework文件
lipo -info ./****.framework/****
返回结果
Architectures in the fat file: ./****.framework/**** are: i386 armv7 armv7s
如此便可查看你工程中的静态库是否支持64位。
.a文件
lipo -info ...
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其他好文 时间:
2015-03-30 21:18:58
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176
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
阅读次数:
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