Leetcode VS EPI
Abner Chou
Jul 19, 2018
This article is still work in progress.
Here is a list of problems which both on Leetcode and EPI1. In my opinion, these common appeared questions are more important. Hope this could help job seekers to prepare for their final interviews.
| Leetcode2 | EPI3 | Difficulty4 | Problem5 | Company6 |
|---|---|---|---|---|
| 21 | 7.1 | Easy | Merge Two Sorted Lists | Amazon |
| 20 | 8.3 | Easy | Valid Parentheses | Amazon |
| 8 | 6.1 | Medium | String to Integer (atoi) | Amazon |
| 48 | 5.19 | Medium | Rotate Image | Amazon |
| 15 | 17.4 | Medium | 3-Sum | Amazon |
| 42 | 24.32 | Hard | Trapping Rain Water | Amazon |
| 121 | 5.6 | Easy | Best Time to Buy and Sell Stock | Amazon |
| 89 | 15.10 | Medium | Gray Code | Amazon |
| 235 | 9.3 | Easy | Lowest Common Ancestor of a Binary Search Tree | Amazon |
| 98 | 14.1 | Medium | Validate Binary Search Tree | Amazon |
| 141 | 7.3 | Easy | Linked List Cycle | Amazon |
| 240 | 11.6 | Medium | Search a 2D Matrix II | Amazon |
| 234 | 7.11 | Easy | Palindrome Linked List | Amazon |
| 215 | 24.17 | Medium | Kth Largest Element in an Array | Amazon |
| 579 | 13.12 | Hard | Find Cumulative Salary of an Employee | Amazon |
- 1.The book "Elements of Programming Interviews". https://elementsofprogramminginterviews.com/ ↩
- 2.Problem index on Leetcode. https://leetcode.com/ ↩
- 3.Problem index on EPI. ↩
- 4.The difficulty of the problem on Leetcode. ↩
- 5.The problem title on Leetcode. ↩
- 6.The company tags on Leetcode indicate the problem has appeared in their interview. ↩