O(n2): 1 class Solution { 2 public: 3 string getP(string s, int start, int end) { 4 while (start >= 0 && end result.size()) result = s1;1...
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其他好文 时间:
2015-03-20 08:05:24
阅读次数:
123
It use the hashset to do the tricks. 1 class Solution { 2 public: 3 int longestConsecutive(vector &num) { 4 int len = num.size(), result =...
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其他好文 时间:
2015-03-20 08:02:46
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146
https://leetcode.com/problems/longest-consecutive-sequence/Given an unsorted array of integers, find the length of the longest consecutive elements se...
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其他好文 时间:
2015-03-19 21:38:49
阅读次数:
164
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 leaf node.思路分析:这题比较简单,关于树的题目通常都可以用递归解决,这题也不例外,递归解法的思...
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其他好文 时间:
2015-03-19 06:23:34
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126
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo...
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其他好文 时间:
2015-03-18 22:59:37
阅读次数:
170
problem:
Write a function to find the longest common prefix string amongst an array of strings.
寻找 0 ~n 个字符串的最长公共前缀
thinking:
(1)公共前缀很好理解,按位匹配即可
(2)很容易忘记处理0、1个字符串的情况。
code:
string prefi...
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其他好文 时间:
2015-03-18 18:05:15
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112
Substring
时间限制:1000 ms | 内存限制:65535 KB
描述
You are given a string input. You are to find the longest substring of input such that the reversal of the substring is also a substring of i...
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其他好文 时间:
2015-03-18 14:11:43
阅读次数:
118
题目意思:
http://acm.nyist.net/JudgeOnline/problem.php?pid=308
给定一个字符串s,求出s与其逆序串的最长连续字串。刚开始看成求最长回文字串的问题了,Wa~!这英语我也是醉了。。。喵分析:
将s逆转为ss,求s和ss的最长连续子序列即可。if(s[i-1]==ss[j-1]) dp[i][j]=dp[i-1][j-1]+1;AC代码:/**...
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其他好文 时间:
2015-03-17 23:44:13
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187
Problem Description
Given n integers.
You have two operations:
U A B: replace the Ath number by B. (index counting from 0)
Q A B: output the length of the longest consecutive increasing subseque...
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其他好文 时间:
2015-03-17 23:39:04
阅读次数:
161
题目Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. Fo...
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其他好文 时间:
2015-03-17 18:04:49
阅读次数:
134