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Problem: Longest Substring without Repeating Characters

Medium
30 min
Explore how to identify the longest substring without repeating characters by applying the sliding window approach. This lesson guides you through understanding the problem, using optimized methods to solve it in Python, and practicing your implementation in a coding environment.

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 identify the longest substring without repeating characters by applying the sliding window approach. This lesson guides you through understanding the problem, using optimized methods to solve it in Python, and practicing your implementation in a coding environment.

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.