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"First, solve the problem. Then, write the code.” – John Johnson

Problems for Arrays

Problem Link	Status	Difficulty
Two Sum	✅	Easy
Partition Labels	✅
Two Sum	✅
Reorder Data in Log Files	✅
LRU Cache	✅
Minimum Difficulty of a Job Schedule	✅
Critical Connections in a Network	✅
Pairs of Songs With Total Durations Divisible by 60	✅
K Closest Points to Origin	✅
Merge Two Sorted Lists	✅

Problems for Week 2

Problem Link	Status	Difficulty
Top K Frequent Words	✅
Copy List with Random Pointer	✅
Most Common Word	✅
Merge k Sorted Lists	✅
Longest Palindromic Substring	✅
Subtree of Another Tree	✅
Trapping Rain Water	✅
Word Ladder	✅
Maximal Square	✅
Friend Circles	✅

Problems for Week 3

Problem Link	Status	Difficulty
Longest Substring Without Repeating Characters	✅
Add Two Numbers	✅
Merge Intervals	✅
Analyze User Website Visit Pattern
Prison Cells After N Days	✅
Meeting Rooms II	✅
Group Anagrams	✅
Sliding Window Maximum	✅
Median of Two Sorted Arrays	✅
Best Time to Buy and Sell Stock	✅

Problems for Week 4

Problem Link	Status	Difficulty
Robot Bounded In Circle
Number of Provinces	✅
Maximum Units on a Truck	✅
Search Suggestions System	✅
Minimum Cost to Connect Sticks	✅
Analyze User Website Visit Pattern
Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts	✅
Rotting Oranges	✅
Least Number of Unique Integers after K Removals	✅
Sell Diminishing-Valued Colored Balls

Problems for Week 5

Problem Link	Status	Difficulty
Copy List with Random Pointer	✅
Container With Most Water	✅
Design Tic-Tac-Toe
Decode Ways	✅
Baseball Game	✅
Binary Tree Zigzag Level Order Traversal	✅
Letter Combinations of a Phone Number	✅
Product of Array Except Self	✅
Find Median from Data Stream	✅
Binary Tree Zigzag Level Order Traversal	✅

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Disclaimer: Data collected from Internet and intended for educational purposes.

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