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Coupang Master DSA Sheet

This compilation contains exclusive, previously asked data structure and algorithm questions from real Coupang interviews. Focus on these core problem patterns to confidently tackle even the hardest interview challenges.

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Open the Lock
Medium
Snapshot Array
Medium
Merge Intervals
Medium
Longest Substring Without Repeating Characters
Medium
Find K Closest Elements
Medium
Alien Dictionary
Hard
Shopping Offers
Medium
Split BST
Medium
Wildcard Matching
Hard
Basic Calculator II
Medium
Random Pick with Weight
Medium
Basic Calculator III
Hard
Task Scheduler
Medium
Regular Expression Matching
Hard
Maximum Good Subarray Sum
Medium
Maximum Subarray
Medium
Number of Islands
Medium
LFU Cache
Hard
Single Element in a Sorted Array
Medium
Decode String
Medium
Course Schedule
Medium
Design In-Memory File System
Hard
Shortest Bridge
Medium
Insert Delete GetRandom O(1)
Medium
Container With Most Water
Medium
Remove K Digits
Medium
Basic Calculator
Hard
LRU Cache
Medium
Split Strings by Separator
Easy
Group Anagrams
Medium
Design Hit Counter
Medium
Merge k Sorted Lists
Hard
Largest Rectangle in Histogram
Hard
Palindrome Partitioning
Medium
Longest Substring with At Most K Distinct Characters
Medium
Largest Positive Integer That Exists With Its Negative
Easy
Number of Distinct Islands
Medium
Word Break
Medium
Reorganize String
Medium
Sliding Window Maximum
Hard
Find Median from Data Stream
Hard
Longest Duplicate Substring
Hard
Cheapest Flights Within K Stops
Medium
Unique Paths
Medium
Subsets
Medium
Distinct Subsequences
Hard
Kth Largest Element in an Array
Medium
Increasing Triplet Subsequence
Medium
Design Twitter
Medium
Find Pivot Index
Easy
Buildings With an Ocean View
Medium
Range Module
Hard
Longest Repeating Substring
Medium