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Problem: Longest Substring without Repeating Characters

Medium
30 min
Explore how to find the length of the longest substring without repeating characters by applying the sliding window approach. Learn to break down the problem, identify key patterns, and implement an efficient solution suitable for large input strings.

Statement

Given a string, input_str, return the length of the longest substring without repeating characters.

Constraints:

  • 11 \leq input_str.length 105\leq 10^5
  • input_str consists of English letters, digits, and spaces.
Problem
Ask
Submissions

Problem: Longest Substring without Repeating Characters

Medium
30 min
Explore how to find the length of the longest substring without repeating characters by applying the sliding window approach. Learn to break down the problem, identify key patterns, and implement an efficient solution suitable for large input strings.

Statement

Given a string, input_str, return the length of the longest substring without repeating characters.

Constraints:

  • 11 \leq input_str.length 105\leq 10^5
  • input_str consists of English letters, digits, and spaces.