SoFi LeetCode Questions
15 questions all-time · 1 easy · 9 medium · 5 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Longest Mountain in Array Array, Two Pointers, Dynamic Programming, Enumeration | Medium | 100 | 0.4% |
| 2 | Minimum Number of Steps to Make Two Strings Anagram Hash Table, String, Counting | Medium | 100 | 0.8% |
| 3 | Insert Delete GetRandom O(1) Array, Hash Table, Math, Design, Randomized | Medium | 96 | 0.6% |
| 4 | Minimum Window Substring Hash Table, String, Sliding Window | Hard | 91 | 0.5% |
| 5 | Top K Frequent Elements Array, Hash Table, Divide and Conquer, Sorting, Heap (Priority Queue), Bucket Sort, Counting, Quickselect | Medium | 91 | 0.7% |
| 6 | Maximum Number of Non-overlapping Palindrome Substrings Two Pointers, String, Dynamic Programming, Greedy | Hard | 86 | 0.4% |
| 7 | Number of Islands Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix | Medium | 78 | 0.6% |
| 8 | Asteroid Collision Array, Stack, Simulation | Medium | 78 | 0.5% |
| 9 | Degree of an Array Array, Hash Table | Easy | 78 | 0.6% |
| 10 | LRU Cache Hash Table, Linked List, Design, Doubly-Linked List | Medium | 78 | 0.5% |
| 11 | Merge k Sorted Lists Linked List, Divide and Conquer, Heap (Priority Queue), Merge Sort | Hard | 68 | 0.6% |
| 12 | Meeting Scheduler Array, Two Pointers, Sorting | Medium | 68 | 0.6% |
| 13 | Maximum Number of Alloys Array, Binary Search | Medium | 68 | 0.4% |
| 14 | Word Ladder Hash Table, String, Breadth-First Search | Hard | 68 | 0.5% |
| 15 | Text Justification Array, String, Simulation | Hard | 68 | 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.