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340. Longest Substring with At Most K Distinct Characters

Problem Details

  • 🔗 Link: https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters/
  • 📊 Difficulty: Medium
  • 🏷️ Category: Sliding Window
  • 💪 Confidence: high

📋 Problem Statement

[Insert problem statement here]

Examples

[Insert examples here]

Constraints

[Insert constraints here]


🚫 Approach 1 — Brute Force

Thought Process

[Think like a layman on steps how you will solve this problem]

Algorithm / Pseudocode

[Provide high level steps so that I can code]

Code

// Add your Java code here

Time & Space Complexity

[Add complexity analysis]


✅ Approach 2 — Optimal

Thought Process

[How did you arrive at the optimal solution]

Algorithm / Pseudocode

[Provide high level steps so that I can code]

Code

// Add your optimal Java code here

Time & Space Complexity

[Add complexity analysis]


🔄 Weekly Quick Revision

[Add a summary to revise the mental model and optimal concept quickly]