Dell LeetCode Questions
11 questions all-time · 6 easy · 4 medium · 1 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Count Binary Substrings Two Pointers, String | Easy | 100 | 0.7% |
| 2 | Break a Palindrome String, Greedy | Medium | 81 | 0.5% |
| 3 | Longest Substring Without Repeating Characters Hash Table, String, Sliding Window | Medium | 66 | 0.4% |
| 4 | Group Anagrams Array, Hash Table, String, Sorting | Medium | 66 | 0.7% |
| 5 | Two Sum Array, Hash Table | Easy | 66 | 0.6% |
| 6 | Minimum Value to Get Positive Step by Step Sum Array, Prefix Sum | Easy | 66 | 0.6% |
| 7 | Maximum Subarray Array, Divide and Conquer, Dynamic Programming | Medium | 66 | 0.5% |
| 8 | Delete Duplicate Emails Database | Easy | 57 | 0.7% |
| 9 | Department Top Three Salaries Database | Hard | 57 | 0.6% |
| 10 | Valid Parentheses String, Stack | Easy | 57 | 0.4% |
| 11 | Valid Anagram Hash Table, String, Sorting | Easy | 57 | 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.