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How do you find the length of the longest substring without repeating characters C#?
For “bbbbb” the longest substring is “b”, with the length of 1. Solution: if we scan the string from begin to end using i and use another pointer j to scan from i + 1 to end. then for each interval from i to j. check sub string is without repeating characters.
What is the time complexity for finding the longest substring?
The desired time complexity is O(n) where n is the length of the string….Given a string str, find the length of the longest substring without repeating characters.
- For “ABDEFGABEF”, the longest substring are “BDEFGA” and “DEFGAB”, with length 6.
- For “BBBB” the longest substring is “B”, with length 1.
How to find the longest substring without repeating characters?
Given a string s, find the length of the longest substring without repeating characters. Input: s = “abcabcbb” Output: 3 Explanation: The answer is “abc”, with the length of 3. Input: s = “bbbbb” Output: 1 Explanation: The answer is “b”, with the length of 1.
Which is a valid substring in a string?
One characteristic of a substring is that all the characters are contiguous. For e.g, in a given string s = redquark, the valid substrings are – edq, ar, red, quar etc. The substrings rd, qur are not valid substrings because even though they contain characters from the source strings, those characters are not continuous.
Which is the longest substring for abdefgabef?
For “ABDEFGABEF”, the longest substring are “BDEFGA” and “DEFGAB”, with length 6. For “BBBB” the longest substring is “B”, with length 1. For “GEEKSFORGEEKS”, there are two longest substrings shown in the below diagrams, with length 7.
How to calculate the length of a string?
Time Complexity: O (n + d) where n is length of the input string and d is number of characters in input string alphabet. For example, if string consists of lowercase English characters then value of d is 26. // This code is contributed by rutvik_56.