Whatnot LeetCode Questions
13 questions all-time · 4 easy · 9 medium · 0 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Valid Palindrome II Two Pointers, String, Greedy | Easy | 100 | 0.4% |
| 2 | Remove All Adjacent Duplicates In String String, Stack | Easy | 91 | 0.7% |
| 3 | Number of Islands Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix | Medium | 85 | 0.6% |
| 4 | Knight Dialer Dynamic Programming | Medium | 85 | 0.6% |
| 5 | Squares of a Sorted Array Array, Two Pointers, Sorting | Easy | 77 | 0.7% |
| 6 | Analyze User Website Visit Pattern Array, Hash Table, String, Sorting | Medium | 77 | 0.4% |
| 7 | Group Anagrams Array, Hash Table, String, Sorting | Medium | 62 | 0.7% |
| 8 | Search a 2D Matrix II Array, Binary Search, Divide and Conquer, Matrix | Medium | 62 | 0.6% |
| 9 | Word Search Array, String, Backtracking, Depth-First Search, Matrix | Medium | 62 | 0.5% |
| 10 | Maximal Square Array, Dynamic Programming, Matrix | Medium | 62 | 0.5% |
| 11 | Meeting Rooms II Array, Two Pointers, Greedy, Sorting, Heap (Priority Queue), Prefix Sum | Medium | 62 | 0.5% |
| 12 | K Closest Points to Origin Array, Math, Divide and Conquer, Geometry, Sorting, Heap (Priority Queue), Quickselect | Medium | 62 | 0.7% |
| 13 | First Bad Version Binary Search, Interactive | Easy | 62 | 0.5% |
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.