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Whatnot DSA Interview Questions

13 curated coding interview questions directly asked in Whatnot technical rounds, sorted by frequency with recency and difficulty diagnostics.

13 Total Questions
4 (31%) Easy Problems
9 (69%) Medium Problems
0 (0%) Hard Problems
🔥 Most Tested Topics:
Strings (5)Core DSA (4)Arrays (3)Binary Search (2)Graphs (1)
📂 Sourced Datasets:
Last 3 monthsLast 6 monthsAll questionsOlder than 6 months
Showing 13 of 13 displayed
IDProblemDifficultyTopicPatternAcceptanceFrequencyRecency
935Knight DialerMediumCore DSAImplementation / Reasoning61.9%100.0%3m
680Valid Palindrome IIEasyStringsHashing / Sliding Window44.3%100.0%6m
1047Remove All Adjacent Duplicates In StringEasyArrays; StringsSorting / Prefix / Scan; Hashing / Sliding Window73.2%100.0%6m
200Number of IslandsMediumGraphsBFS / DFS / Topological Sort64.4%87.5%all
977Squares of a Sorted ArrayEasyArraysSorting / Prefix / Scan73.8%75.0%all
1152Analyze User Website Visit PatternMediumStringsHashing / Sliding Window44.3%75.0%all
49Group AnagramsMediumStringsHashing / Sliding Window72.6%62.5%all
240Search a 2D Matrix IIMediumArrays; Binary SearchSorting / Prefix / Scan; Binary Search57.3%62.5%all
79Word SearchMediumStrings; Binary SearchHashing / Sliding Window; Binary Search47.4%62.5%all
221Maximal SquareMediumCore DSAImplementation / Reasoning50.3%62.5%all
253Meeting Rooms IIMediumGreedyGreedy52.7%62.5%all
973K Closest Points to OriginMediumCore DSAImplementation / Reasoning69.0%62.5%all
278First Bad VersionEasyCore DSAImplementation / Reasoning47.1%62.5%all