Zeta LeetCode Questions
30 questions all-time · 0 easy · 20 medium · 10 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Apply Operations to Make Two Strings Equal String, Dynamic Programming | Medium | 100 | 0.3% |
| 2 | Split Array Largest Sum Array, Binary Search, Dynamic Programming, Greedy, Prefix Sum | Hard | 83 | 0.6% |
| 3 | Minimum Window Substring Hash Table, String, Sliding Window | Hard | 77 | 0.5% |
| 4 | Task Scheduler Array, Hash Table, Greedy, Sorting, Heap (Priority Queue), Counting | Medium | 70 | 0.6% |
| 5 | Capacity To Ship Packages Within D Days Array, Binary Search | Medium | 70 | 0.7% |
| 6 | Trapping Rain Water Array, Two Pointers, Dynamic Programming, Stack, Monotonic Stack | Hard | 70 | 0.7% |
| 7 | Palindrome Partitioning II String, Dynamic Programming | Hard | 70 | 0.4% |
| 8 | Remove Boxes Array, Dynamic Programming, Memoization | Hard | 70 | 0.5% |
| 9 | Next Greater Element II Array, Stack, Monotonic Stack | Medium | 60 | 0.7% |
| 10 | Reverse Nodes in k-Group Linked List, Recursion | Hard | 60 | 0.7% |
| 11 | Longest Substring Without Repeating Characters Hash Table, String, Sliding Window | Medium | 60 | 0.4% |
| 12 | Count Univalue Subtrees Tree, Depth-First Search, Binary Tree | Medium | 60 | 0.6% |
| 13 | Insert Delete GetRandom O(1) Array, Hash Table, Math, Design, Randomized | Medium | 60 | 0.6% |
| 14 | Remove K Digits String, Stack, Greedy, Monotonic Stack | Medium | 60 | 0.4% |
| 15 | Maximal Rectangle Array, Dynamic Programming, Stack, Matrix, Monotonic Stack | Hard | 60 | 0.6% |
| 16 | Heaters Array, Two Pointers, Binary Search, Sorting | Medium | 60 | 0.4% |
| 17 | Maximum Subarray Array, Divide and Conquer, Dynamic Programming | Medium | 60 | 0.5% |
| 18 | Find All Possible Recipes from Given Supplies Array, Hash Table, String, Graph Theory, Topological Sort | Medium | 60 | 0.6% |
| 19 | Sliding Window Maximum Array, Queue, Sliding Window, Heap (Priority Queue), Monotonic Queue | Hard | 60 | 0.5% |
| 20 | Minimize the Maximum Difference of Pairs Array, Binary Search, Dynamic Programming, Greedy, Sorting | Medium | 60 | 0.5% |
| 21 | Binary Tree Cameras Dynamic Programming, Tree, Depth-First Search, Binary Tree | Hard | 60 | 0.5% |
| 22 | Partition to K Equal Sum Subsets Array, Dynamic Programming, Backtracking, Bit Manipulation, Memoization, Bitmask | Medium | 60 | 0.4% |
| 23 | Guess Number Higher or Lower II Math, Dynamic Programming, Game Theory | Medium | 60 | 0.5% |
| 24 | Shifting Letters II Array, String, Prefix Sum | Medium | 60 | 0.5% |
| 25 | Merge Intervals Array, Sorting | Medium | 60 | 0.5% |
| 26 | Median of Two Sorted Arrays Array, Binary Search, Divide and Conquer | Hard | 60 | 0.5% |
| 27 | Distribute Coins in Binary Tree Tree, Depth-First Search, Binary Tree | Medium | 60 | 0.8% |
| 28 | Word Break Array, Hash Table, String, Dynamic Programming, Trie, Memoization | Medium | 60 | 0.5% |
| 29 | Power Grid Maintenance Array, Hash Table, Depth-First Search, Breadth-First Search, Union-Find, Graph Theory, Heap (Priority Queue), Ordered Set | Medium | 60 | 0.6% |
| 30 | House Robber Array, Dynamic Programming | Medium | 60 | 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.