Citadel

75 questions

Interview frequency breakdown: 30-day, 3-month, 6-month & all-time

6 Easy 44 Med 25 Hard

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Showing 75 questions

#150Evaluate Reverse Polish NotationMediumarrayNeetCode

100% Freq

30d

#239Sliding Window MaximumHardarrayNeetCode

100% Freq

#1801Number of Orders in the BacklogMediumarrayWalkCCC

100% Freq

3m

#2484Count Palindromic SubsequencesHardstringWalkCCC

100% Freq

#647Palindromic SubstringsMediumtwo pointersNeetCode

95% Freq

#981Time Based Key-Value StoreMediumhash tableNeetCode

93% Freq

3m

#56Merge IntervalsMediumarrayNeetCode

91% Freq

#121Best Time to Buy and Sell StockEasyarrayNeetCode

89% Freq

#295Find Median from Data StreamHardtwo pointersNeetCode

89% Freq

#1515Best Position for a Service CentreHardarrayWalkCCC

89% Freq

#380Insert Delete GetRandom O(1)MediumarrayWalkCCC

87% Freq

3m

#2361Minimum Costs Using the Train LineHardarrayWalkCCC

84% Freq

#3484Design SpreadsheetMediumarrayWalkCCC

84% Freq

3m

#399Evaluate DivisionMediumarrayNeetCode

81% Freq

#718Maximum Length of Repeated SubarrayMediumarrayWalkCCC

81% Freq

#2661First Completely Painted Row or ColumnMediumarrayWalkCCC

81% Freq

#3186Maximum Total Damage With Spell CastingMediumarrayWalkCCC

81% Freq

#4069Best Time to Buy and Sell Stock with Cooldown IIMediumarrayWalkCCC

81% Freq

#146LRU CacheMediumhash tableNeetCode

76% Freq

#460LFU CacheHardhash tableNeetCode

76% Freq

#2050Parallel Courses IIIHardarrayWalkCCC

74% Freq

#759Employee Free TimeHardarrayNeetCode

72% Freq

#1229Meeting SchedulerMediumarrayWalkCCC

72% Freq

#1606Find Servers That Handled Most Number of RequestsHardarrayWalkCCC

72% Freq

#2598Smallest Missing Non-negative Integer After OperationsMediumarrayWalkCCC

72% Freq

#210Course Schedule IIMediumdepth first searchNeetCode

69% Freq

3m

#1Two SumEasyarrayNeetCode

68% Freq

3m

#127Word LadderHardhash tableNeetCode

66% Freq

#287Find the Duplicate NumberMediumarrayNeetCode

66% Freq

#332Reconstruct ItineraryHardarrayNeetCode

66% Freq

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