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Find substring with K distinct characters

Given a string and number K, find the substrings of size K with K distinct characters. If no, output empty list. Remember to emit the duplicate substrings, i.e. if the substring repeated twice, only output once. 字符串中等题.Sliding window algorithm + Hash…

Find substring with K-1 distinct characters

参考 Find substring with K distinct characters Find substring with K distinct characters(http://www.cnblogs.com/pegasus923/p/8444653.html) Given a string and number K, find the substrings of size K with K-1 distinct characters. If no, output empty list…

[LeetCode] Longest Substring with At Most K Distinct Characters 最多有K个不同字符的最长子串

Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = “eceba” and k = 2, T is "ece" which its length is 3. 这道题是之前那道Longest Substring with At Most Two Distinct Characters的拓展…

Leetcode: Longest Substring with At Most K Distinct Characters && Summary: Window做法两种思路总结

Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = "eceba" and k = 2, T is "ece" which its length is 3. 我的做法:维护一个window,r移动到超出k distinct character限制是更新max,然后移动…

[Swift]LeetCode340.最多有K个不同字符的最长子串 $ Longest Substring with At Most K Distinct Characters

Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = "eceba" and k = 2, T is "ece" which its length is 3. 给定一个字符串,找出包含最多k个不同字符的最长子字符串t的长度. 例如,给定s=“eceba”和k=2, T是…

[leetcode]340. Longest Substring with At Most K Distinct Characters至多包含K种字符的最长子串

Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = “eceba” and k = 2, T is "ece" which its length is 3. 题意: 给定字符串,求至多包含K种字符的最长子串 思路: 跟[leetcode]159. Longest Substring wi…

最多有k个不同字符的最长子字符串 · Longest Substring with at Most k Distinct Characters(没提交)

［抄题］: 给定一个字符串,找到最多有k个不同字符的最长子字符串.eg:eceba, k = 3, return eceb [暴力解法]: 时间分析: 空间分析: ［思维问题］: 怎么想到两根指针的:从双层for循环的优化 开始分析 ［一句话思路］: ［输入量］:空: 正常情况:特大:特小:程序里处理到的特殊情况:异常情况(不合法不合理的输入): ［画图］: ［一刷］: 没有养成好习惯:退出条件写在添加条件之前.因此先判断if (map.size() == k),再map.put(c,1) ［二…

LeetCode 340. Longest Substring with At Most K Distinct Characters

原题链接在这里:https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters/ 题目: Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = “eceba” and k = 2, T is "ec…

[LeetCode] 340. Longest Substring with At Most K Distinct Characters 最多有K个不同字符的最长子串

Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = “eceba” and k = 2, T is "ece" which its length is 3. 159. Longest Substring with At Most Two Distinct Characters 的拓展,1…

LeetCode "Longest Substring with At Most K Distinct Characters"

A simple variation to "Longest Substring with At Most Two Distinct Characters". A typical sliding window problem. class Solution { public: int lengthOfLongestSubstringKDistinct(string s, int k) { unordered_map<char, unsigned> hm; , start =…