这题目是经典的DP题目,也可叫作LIS(Longest Increasing Subsequence)最长上升子序列 或者 最长不下降子序列。很基础的题目,有两种算法,复杂度分别为O(n*logn)和O(n^2) 。A.O(n^2)算法分析如下:(a[1]...a[n] 存的都是输入的数)1、对于a...
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编程语言 时间:
2015-01-07 18:26:49
阅读次数:
280
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.
For example,
Given [100, 4, 200, 1, 3,
2],
The longest consecutive elements sequence is [1,
2,...
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编程语言 时间:
2015-01-07 16:52:23
阅读次数:
141
题目链接:https://oj.leetcode.com/problems/longest-palindromic-substring/
这道题通常可以写出来的是2种做法。
1. 保持一个index从前往后扫,每次index的循环中,保持left和right的index向两边扫,但是有2种情况,aba和abba。left和right的扫描要扫2次
2. DP做法,2维矩阵
* 可以...
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其他好文 时间:
2015-01-07 15:00:44
阅读次数:
128
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.
For example,
Given [100, 4, 200, 1, 3, 2],
The longest consecutive elements sequence is [1, 2, 3...
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其他好文 时间:
2015-01-07 10:58:06
阅读次数:
191
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa...
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其他好文 时间:
2015-01-06 23:07:00
阅读次数:
208
基础:1.囤位参数是字符串格式,如"A5/R8/D3",其中第一个字母是舱位信息,第二个参数是舱位数量,用Substring来截取字符串信息,来比较舱等和数量。 public String substring(int beginIndex, int endIndex) 第一个int为开始的索引,对应...
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其他好文 时间:
2015-01-06 19:40:01
阅读次数:
128
其实就是拼接sql 拼接出来的select 'INSERT INTO [Gas_CN_Trade_B2C].[dbo].[Common_Street] values ('+convert(varchar(20),ID)+','+StreetName+','''+''''+','+substring(...
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数据库 时间:
2015-01-06 15:11:54
阅读次数:
136
题目描述:
Write a function to find the longest common prefix string amongst an array of strings.
代码:
string Solution::longestCommonPrefix(vector &strs)
{
string result = "";
if(strs.size(...
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其他好文 时间:
2015-01-06 12:03:24
阅读次数:
137
Given a strings, partitionssuch that every substring of the partition is a palindrome.Return all possible palindrome partitioning ofs.For example, giv...
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其他好文 时间:
2015-01-06 11:37:18
阅读次数:
91
Given a string, find the length of the longest substring T that contains at most 2 distinct characters.
For example, Given s = “eceba”,
T is "ece" which its length is 3.
这题的线性解法是维护一个sliding w...
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其他好文 时间:
2015-01-06 07:20:32
阅读次数:
121