In computer science, substring search or string Matching is a vulnerable problem when text resources are very large. Productivity of diverse scraping applications depend on the effectiveness of ...

Given a string S, return the number of substrings of length K with no repeated characters. Example 1: Input: S = "havefunonleetcode", K = 5 Output: 6 Explanation: There are 6 substrings they are : ...

Given a string S, return the number of substrings of length K with no repeated characters. Notice K can be larger than the length of S. In this case is not possible to find any substring. #限定string 长度 ...