TCS Hash Table Questions

44 hash table problems asked at TCS interviews

Easy (20)Medium (21)Hard (3)

Questions

TitleDifficulty
Two SumEasy
Majority ElementEasy
Valid AnagramEasy
Longest Substring Without Repeating CharactersMedium
Subarray Sum Equals KMedium
Contains DuplicateEasy
Remove Letter To Equalize FrequencyEasy
Task SchedulerMedium
First Unique Character in a StringEasy
Contains Duplicate IIEasy
Roman to IntegerEasy
Missing NumberEasy
Happy NumberEasy
Split Array With Same AverageHard
Count Number of Pairs With Absolute Difference KEasy
Set Matrix ZeroesMedium
Group AnagramsMedium
Letter Combinations of a Phone NumberMedium
Next Greater Element IEasy
Number of Good PairsEasy
K-diff Pairs in an ArrayMedium
First Missing PositiveHard
Find Subsequence of Length K With the Largest SumEasy
LRU CacheMedium
Top K Frequent ElementsMedium
Contiguous ArrayMedium
Longest Consecutive SequenceMedium
Permutation in StringMedium
Majority Element IIMedium
Maximum Sum of Distinct Subarrays With Length KMedium
Check If Array Pairs Are Divisible by kMedium
Linked List Cycle IIMedium
Longest Balanced Substring IIMedium
Smallest Integer Divisible by KMedium
Integer to RomanMedium
Continuous Subarray SumMedium
How Many Numbers Are Smaller Than the Current NumberEasy
Find All Numbers Disappeared in an ArrayEasy
Binary Subarrays With SumMedium
Linked List CycleEasy
Intersection of Two Arrays IIEasy
Longest PalindromeEasy
Intersection of Two Linked ListsEasy
Word LadderHard

Showing 44 questions