Determine whether an integer is a palindrome.
Do this without extra space.if use recursive, like check the first dig and last
dig, then remove them, c...
分类:
其他好文 时间:
2014-05-23 02:45:15
阅读次数:
230
Problem 4: Largest palindrome product
A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.
Find the largest pal...
分类:
其他好文 时间:
2014-05-22 18:48:46
阅读次数:
355
Evaluate the value of an arithmetic expression
inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an
integer or another express...
分类:
其他好文 时间:
2014-05-22 15:28:54
阅读次数:
175
11行制造了一个手机,手机名为wechatCallbackapiTest,这个手机有三个功能,一个功能是valid(),它的作用是签名和接口验证;另一个函数叫responseMsg(),这个该手机最重要的功能,就跟打电话一样;最后一个功能是checkSignature(),它是用来验证签名的。...
分类:
微信 时间:
2014-05-22 07:02:37
阅读次数:
606
Evaluate the value of an arithmetic expression
inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an
integer or another express...
分类:
其他好文 时间:
2014-05-22 00:49:57
阅读次数:
311
Given a string, determine if it is a
palindrome, considering only alphanumeric characters and ignoring cases.For
example,"A man, a plan, a canal: Pana...
分类:
其他好文 时间:
2014-05-21 21:20:54
阅读次数:
291
Valid Parentheses括号匹配问题...
分类:
其他好文 时间:
2014-05-21 16:02:30
阅读次数:
161
Palindrome
Time Limit: 3000MS
Memory Limit: 65536K
Total Submissions: 50914
Accepted: 17537
Description
A palindrome is a symmetrical string, that is, a string read...
分类:
其他好文 时间:
2014-05-21 06:50:05
阅读次数:
281
5道题目分别是:【Largest Rectangle in Histogram】、【Minimum Path Sum】、【Jump Game】、【Jump Game II 】、【Valid Number】,由于有一些题目不需要发一整篇博文来记录,所以就将这些题目以一篇博文5道来记录。...
分类:
其他好文 时间:
2014-05-21 03:05:33
阅读次数:
481
【题目】
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 has length = 2.
Another example is ")()())", whe...
分类:
其他好文 时间:
2014-05-20 16:39:07
阅读次数:
280