LeetCode 3013 | Pair + TreeSet 🔥 HARD Sliding Window Explained | Java Solution
Автор: codeWithKhan
Загружено: 2026-02-02
Просмотров: 13
Описание:
In this video, we solve LeetCode 3013 – Divide an Array Into Subarrays With Minimum Cost II, a HARD sliding window problem.
💡 In this problem:
• We must divide the array into k contiguous subarrays
• The cost of each subarray is its first element
• A strict distance constraint (dist) makes brute force impossible
🚀 What you’ll learn in this video:
• How to convert the problem into a sliding window
• Why we need k-1 smallest elements
• How to use Pair + TreeSet effectively in Java
• Common off-by-one mistakes and how to avoid them
• A clean O(n log n) solution that passes all test cases
👨💻 Tech Stack:
• Java
• TreeSet
• Sliding Window
• Greedy + Data Structures
If you’re preparing for coding interviews, LeetCode Hard problems, or want to master advanced sliding window techniques, this video is for you 🔥
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