Input: String="cbbebi", K=3 Output: 5 Explanation: The longest substrings with no more than '3' distinct characters are "cbbeb" & "bbebi". 2.2 解决方法 该问题为含有 K 个不同字符的最长子串问题,首先可以想到可以运用暴力破解方法求得所有符合要求的字符串,然后再求得每个字符串的长度选择最长...
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l使distinct character <=k...
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。 使用移动窗口算法,两个指针标...
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l使distinct character <=k; 这种做法更新max只发生在超出限制的时候,有可能永远都没有超出限制,所以while loop完了之后要补上一个max的更新 1publicclassSolution {2publicintlengthOfLongestSubstringKDistinct(String s,intk) {3intl...
Longest substring with k distinct characters Algorithm traverse the input string from first character to last character. at first the substring start at index 0. we increase the length of substring by one character. when the number of distinct characters in the substring is greater than input numb...
Leetcode: Longest Substring with At Most Two Distinct Characters,方法一:用HashMap,map里面存元素及其出现次数。维护一个最大长度。用两个指针,右指针一直走到出现3个dinstinctcharacter为止。然后调整左指针删元素,直接从左往右逐个字符的删除,一直删到某个字符不
Given a string, find the length of the longest substring T that contains at mostkdistinct characters. For example, Given s =“eceba”and k = 2, T is "ece" which its length is 3. Solution Slide window, O(n), S(1) 很直观的做法,tricky的地方是,如果当前distinct > k,需要将winStart向...
The query retrieves the first 50 characters of the text that describes the product model, the <Summary> element in the document. WITH XMLNAMESPACES ('https://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ProductModelDescription' AS pd) SELECT ProductModelID, CatalogDescription.query(' <...
•PositionofalloccurrencesofeachpatternP i inT •Solutionmethod –PreprocesstocreatesuffixtreeforT •O(m)time,O(m)space –MaximallymatcheachP i insuffixtree –Outputallleafpositionsbelowmatchpoint •O(n+k)timewherekisnumberoftotalmatches ComparisonwithAho-Corasick •Aho-Corasick –O(n)...
Given a string, find the length of the longest possible substring in it that has exactly K distinct characters. If there is no possible substring then print -1. You can assume that K is less than or equal to the length of the given string.