Longest Unique Substring Problem Statement

Given a string input of length 'n', your task is to determine the length of the longest substring that contains no repeating characters.

Explanation:

A substring is a continuous sequence of characters within a string, formed by removing zero or more characters from the ends while maintaining the order.

Input:

A single line consisting of a string of length 'n' containing lowercase alphabets.

Output:

An integer representing the length of the longest substring with unique characters.

Example:

Input:

s = "abcabcbb"

Output:

3

Explanation:

The answer is "abc", with the length of 3.

Constraints:

1

Question

Longest Unique Substring Problem Statement

Given a string input of length 'n', your task is to determine the length of the longest substring that contains no repeating characters.

Explanation:

A substring is a continuous sequence of characters within a string, formed by removing zero or more characters from the ends while maintaining the order.

Input:

A single line consisting of a string of length 'n' containing lowercase alphabets.

Output:

An integer representing the length of the longest substring with unique characters.

Example:

Input:

s = "abcabcbb"

Output:

Explanation:

The answer is "abc", with the length of 3.

Constraints:

1 <= n <= 10^5
Time Limit: 1 sec

Accepted Answer

Find the length of the longest substring with unique characters in a given string.

Use a sliding window approach to keep track of the longest substring without repeating characters.
Use a hashmap to store the index of each character in the string.
Update the start index of the window when a repeating character is encountered.
Calculate the maximum length of the window as you iterate through the string.
Return the maximum length as the result.

Asked in Freshworks

Longest Unique Substring Problem Statement

Explanation:

Input:

Output:

Example:

Input:

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Explanation:

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