Citadel Hash Table Questions

21 hash table problems asked at Citadel interviews

Easy (1)Medium (15)Hard (5)

Questions

TitleDifficulty
Maximum Total Damage With Spell CastingMedium
First Completely Painted Row or ColumnMedium
Longest String ChainMedium
LRU CacheMedium
Insert Delete GetRandom O(1)Medium
LFU CacheHard
Length of Longest Subarray With at Most K FrequencyMedium
Group AnagramsMedium
Smallest Missing Non-negative Integer After OperationsMedium
Sudoku SolverHard
Delete and EarnMedium
Implement Trie (Prefix Tree)Medium
Reorganize StringMedium
Word Ladder IIHard
Letter Combinations of a Phone NumberMedium
Integer to RomanMedium
Max Points on a LineHard
Pairs of Songs With Total Durations Divisible by 60Medium
Word LadderHard
Two SumEasy
Time Based Key-Value StoreMedium

Showing 21 questions