Alibaba LeetCode Questions
5 questions all-time · 0 easy · 4 medium · 1 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Split Array with Equal Sum Array, Hash Table, Prefix Sum | Hard | 100 | 0.5% |
| 2 | Split Concatenated Strings Array, String, Greedy | Medium | 100 | 0.4% |
| 3 | Path Sum IV Array, Hash Table, Tree, Depth-First Search, Binary Tree | Medium | 100 | 0.6% |
| 4 | Valid Parenthesis String String, Dynamic Programming, Stack, Greedy | Medium | 100 | 0.4% |
| 5 | Kth Largest Element in an Array Array, Divide and Conquer, Sorting, Heap (Priority Queue), Quickselect | Medium | 64 | 0.7% |
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.