CSS and LeetCode-Style Problems

MediumPython

Problem

Tell me about a time you solved basic CSS problems and a LeetCode-style algorithm problem; walk me through your approach and key decisions.

For the algorithm portion, implement length_of_longest_substring(s). Given a string s, return the length of its longest substring without repeated characters. The substring must contain consecutive characters, and an empty string returns 0.

Input and Output

Input: a string s
Output: an integer representing the maximum valid substring length

Constraints

0 <= len(s) <= 5 * 10^4
s contains printable ASCII characters
A substring must use consecutive characters from s

Function Signature

def length_of_longest_substring(s):

CodePython 3

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