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