Datadog LeetCode Questions

15 questions all-time · 5 easy · 7 medium · 3 hard

#	Problem	Difficulty	Frequency	Acceptance
1	Most Common Word Array, Hash Table, String, Counting	Easy	100	0.5%
2	Coin Change Array, Dynamic Programming, Breadth-First Search	Medium	96	0.5%
3	Meeting Scheduler Array, Two Pointers, Sorting	Medium	92	0.6%
4	Valid Word Abbreviation Two Pointers, String	Easy	90	0.4%
5	Maximum Depth of N-ary Tree Tree, Depth-First Search, Breadth-First Search	Easy	84	0.7%
6	Design Add and Search Words Data Structure String, Depth-First Search, Design, Trie	Medium	84	0.5%
7	Design Circular Queue Array, Linked List, Design, Queue	Medium	80	0.5%
8	People Whose List of Favorite Companies Is Not a Subset of Another List Array, Hash Table, String	Medium	72	0.6%
9	House Robber Array, Dynamic Programming	Medium	68	0.5%
10	Maximum Vacation Days Array, Dynamic Programming, Matrix	Hard	58	0.5%
11	Sliding Window Median Array, Hash Table, Sliding Window, Heap (Priority Queue)	Hard	58	0.4%
12	Binary Tree Maximum Path Sum Dynamic Programming, Tree, Depth-First Search, Binary Tree	Hard	58	0.4%
13	House Robber II Array, Dynamic Programming	Medium	58	0.5%
14	Check If It Is a Straight Line Array, Math, Geometry	Easy	49	0.4%
15	Path Sum Tree, Depth-First Search, Breadth-First Search, Binary Tree	Easy	49	0.6%

How to read this list

The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.

Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. Acceptance is the share of submissions that pass on LeetCode. Click any question to open it on LeetCode.