Longest Common Substring 最长公共子字符串 动态规划问题 动态规划问题的两个特点: 1.最优子结构 2.重叠子问题 因为有重叠子问题,当前计算的过程中可能有的问题在之前的计算已经计算过了,现在又要计算一遍,导致大量重复的计算。 动态规划通过找到解决问题的递推关系,将已经完成计算的存储起来, 当开始新的计算时如果...
[LeetCode] Longest Palindromic Substring This problem has a long story. There are just too many solutions on the web and it can be studied for a long time before you fully grasp it. Morever, it can induce many other concepts or problems (longest palindromic subsequence, longest common subst...
7Manacher算法 这是LeetCode官网上的一种复杂度只到 O(n)的解法,可以说是屌炸天了,膜拜中... ... 如果你感兴趣的话可以了解一下,地址在这里:https://articles.leetcode.com/longest-palindromic-substring-part-ii/ 题外话:由于本人最近工作比较忙,所以刷题数量可能会稍微降低一点,但是会保证一周最少3-4题,...
LeetCode---3. Longest Substring Without Repeating Characters /longest-substring-without-repeating-characters/description/ 找出一个字符串的最长不重复子串,注意是子串不是子序列。返回最长的长度。思路及解法...长度。 第二种方法,双指针方法。利用两个指针建立一个窗口,窗口内字符用哈希集合储存,用以保证窗口内...
LeetCode-014 Longest Common Prefix 返回字符串的最长共同子串。 java实现: 思路一:没有捷径可以走,需要对数组中的每个字符串的字符一一进行比较,如果和第一个不同,则返回。否则,加入到公共 子串中并继续查找。 思路二:也是要一一比较,不过是利用substring方法直接取出最长子串 若当前字符与下一个对应位置的字符...
LeetCode 1143. Longest Common Subsequence classic DP problem, LCS Given two strings text1 and text2, return the length of their longest common subsequence. 虽然不记得如何写的了 但是知道是DP 也知道应该用2D dp去记录 dp[i][j] represents for the LCS if text1 has a lengt......
http://acm.hdu.edu.cn/showproblem.php?pid=1403 Longest Common Substring Time Limit: 8000/4000 MS (Ja ... leetcode【14题】Longest Common Prefix 题目:Longest Common Prefix 内容: Write a function to find the longest common prefix string amongst an ar ... Leetcode 14——Longest Common Pre...
https://leetcode.com/problems/longest-substring-without-repeating-characters/ Given a string, find the length of thelongest substringwithout repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. ...
mndxpnsn / longest-palindromic-substring Star 0 Code Issues Pull requests Solution to the "Longest Palindromic Substring" problem on LeetCode. algorithms leetcode-solutions dynamic-programming leetcode-cpp lps longest-palindromic-substring Updated Aug 21, 2022 C++ ...
File metadata and controls Code Blame 46 lines (39 loc) · 1.27 KB Raw class Solution: def lengthOfLongestSubstring(self, s): """ :type s: str :rtype: int """ if not s: return 0 # sliding window that keeps track of currentBest O(N^2) curSet = set() curInd = [...