Ola Questions
Here are the LeetCode questions for Ola.
Total: 24
Easy: 5
Medium: 14
Hard: 5
Progress: 0%
Topic Frequency Analysis
All Topics
| Rank | Topic | Frequency | Percentage |
|---|---|---|---|
| 1 | Array | 12 | |
| 2 | Dynamic Programming | 8 | |
| 3 | String | 7 | |
| 4 | Depth-First Search | 5 | |
| 5 | Hash Table | 5 | |
| 6 | Math | 4 | |
| 7 | Two Pointers | 4 | |
| 8 | Tree | 3 | |
| 9 | Breadth-First Search | 3 | |
| 10 | Binary Tree | 2 | |
| 11 | Recursion | 2 | |
| 12 | Linked List | 2 | |
| 13 | Stack | 2 | |
| 14 | Graph Theory | 2 | |
| 15 | Sorting | 2 | |
| 16 | Union-Find | 1 | |
| 17 | Binary Search | 1 | |
| 18 | Greedy | 1 | |
| 19 | Matrix | 1 | |
| 20 | Topological Sort | 1 | |
| 21 | Binary Search Tree | 1 | |
| 22 | Memoization | 1 | |
| 23 | Combinatorics | 1 | |
| 24 | Sliding Window | 1 | |
| 25 | Prefix Sum | 1 | |
| 26 | Monotonic Stack | 1 | |
| No. | Question Title | Link | Difficulty | Solved |
|---|---|---|---|---|
| 1 | All Nodes Distance K in Binary Tree | Visit | Medium | |
| 2 | Find Pivot Index | Visit | Easy | |
| 3 | Decode String | Visit | Medium | |
| 4 | Alien Dictionary | Visit | Hard | |
| 5 | Delete Node in a Linked List | Visit | Medium | |
| 6 | Restricted | Restricted | Hard | |
| 7 | Restricted | Restricted | Hard | |
| 8 | Restricted | Restricted | Hard | |
| 9 | Restricted | Restricted | Hard | |
| 10 | Restricted | Restricted | Hard | |
| 11 | Restricted | Restricted | Hard | |
| 12 | Restricted | Restricted | Hard | |
| 13 | Restricted | Restricted | Hard | |
| 14 | Restricted | Restricted | Hard | |
| 15 | Restricted | Restricted | Hard |
Log in to access all 24 questions for free!
Log In