American Express Hash Table Questions

9 hash table problems asked at American Express interviews

Easy (3)Medium (4)Hard (2)

Questions

Title	Difficulty	Acceptance	Frequency
Minimum Deletions to Make Character Frequencies Unique	Medium	61.4%	100.0%
Maximum Equal Frequency	Hard	37.9%	97.8%
Divide an Array Into Subarrays With Minimum Cost II	Hard	54.7%	97.8%
Equal Sum Arrays With Minimum Number of Operations	Medium	54.6%	95.5%
Two Sum	Easy	57.1%	82.8%
Valid Anagram	Easy	67.8%	78.3%
Longest Substring Without Repeating Characters	Medium	38.5%	72.7%
Isomorphic Strings	Easy	48.1%	55.6%
Linked List Cycle II	Medium	57.3%	55.6%

Showing 9 questions