classSolution(object):deflengthOfLongestSubstring(self, s):""":type s: str :rtype: int"""ans=0foriinrange(len(s)):forjinrange(i+1, len(s)+1):ifself.allUnique(s, i, j): ans= max(ans, j-i)returnansdefallUnique(self, s, start, end): uni=set()foriinrange(start, end):...
code: classSolution:deflengthOfLongestSubstring(self,s:str)->int:# Input: s = "", Output: 0, T=O(n)ifs=="":return0# store all possible characterstotal_str_list=[]# store each letter of substrtemp_str_list=[]temp_str_list.append(s[0])foriinrange(1,len(s)):ifs[i]intemp_str...
classSolution{public:intlongestStrChain(vector<string>& words){intn = words.size(), res =1; sort(words.begin(), words.end(), [](string& a,string&b){returna.size() < b.size(); });vector<int>dp(n,1);for(inti =1; i < n; ++i) {for(intj = i -1; j >=0; --j) {i...
python zip_longest和zip的比较 1、zip返回的结果以最短的序列为准,zip_longest以最长的序列为准。 2、如果zip_logest遇到长度不一致的序列,缺少部分会填充None。 实例 代码语言:javascript 代码运行次数:0 运行 from itertoolsimportzip_longest a=list(zip('ABC',range(5),[10,20,30,40]))print(a)a=list...
LeetCode 3:Longest Substring Without Repeating Characters(最长不含重复字符的子串) Q:Given a string, find the length of the longest substring without repeating characters. 我是翻译君: 给定一个字符串,找到不含重复字符的最长子串 1.可能需要和面试官沟... ...
来自专栏 · python算法题笔记 trie class Solution: def stringIndices(self, wordsContainer: List[str], wordsQuery: List[str]) -> List[int]: trie = {"": {"index": 0}} min_len = 5000 for i, word in enumerate(wordsContainer): # 最短字符串位置 cur_len = len(word) if cur_len < ...
PythonServer Side ProgrammingProgramming Suppose we have an unsorted list of integers. We have to find the longest increasing subsequence. So if the input is [10,9,2,5,3,7,101,18], then the output will be 4, as the increasing subsequence is [2,3,7,101] To solve this, we will ...
问题描述: Given a string, find the length of the longest substring without repeating characters. 示例: Given "abcabcbb", the answer is "abc", which the length is 3. Given "bbbbb&quo... 为什么要学集合源码? 1.学习集合源码,能够让我们使用得更加准确。 当我们深入学习了源码之后,我们就能够了解...
代码(Python3) class Solution: def longestValidParentheses(self, s: str) -> int: # ans 表示当前最长合法括号子串的长度,初始化为 0 ans: int = 0 # stack 存储当前未匹配的 '(' 和 ')' 的下标, # 为了方便处理,初始放入 -1 ,表示有一个未匹配的 ')' stack: List[int] = [-1] # 带下标...
[leetcode] 1048. Longest String Chain Description Given a list of words, each word consists of English lowercase letters. Let’s say word1 is a predecessor of word2 if and only if we can add exactly one letter anywhere in word1 to make it equal to word2. For example, “abc” is a...