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Zenefits interview questions

The most frequent LeetCode problems tagged to Zenefits. This is a data-only page. For process and behavioral prep, use the coding guide and behavioral guide.

Based on 0 distinct problems tagged to Zenefits in the last 6 months (0 in the last 30 days, 0 in the last 3 months, 21 all-time) across two open datasets of LeetCode company tags. Tags are user-reported, so treat frequency as a signal, not a promise.

Most frequent problems

Ranked by frequency, weighted toward the last 30 days. Classics like Two Sum sit near the top of almost every company's list because users tag them everywhere. Solve those fast. The signature list below is more specific to this company.

# Problem Difficulty Last seen Topics
1 Convert Sorted List to Binary Search Tree Medium Older Linked List, Divide and Conquer, Tree, Binary Search Tree
2 Course Schedule Medium Older Depth-First Search, Breadth-First Search, Graph Theory, Topological Sort
3 Course Schedule II Medium Older Depth-First Search, Breadth-First Search, Graph Theory, Topological Sort
4 Excel Sheet Column Title Easy Older Math, String
5 Flatten 2D Vector Medium Older Array, Two Pointers, Design, Iterator
6 Generate Parentheses Medium Older String, Dynamic Programming, Backtracking, Bracket Sequences
7 Graph Valid Tree Medium Older Depth-First Search, Breadth-First Search, Union-Find, Graph Theory
8 LRU Cache Medium Older Hash Table, Linked List, Design, Doubly-Linked List
9 Majority Element Easy Older Array, Hash Table, Divide and Conquer, Sorting
10 Majority Element II Medium Older Array, Hash Table, Sorting, Counting
11 Median of Two Sorted Arrays Hard Older Array, Binary Search, Divide and Conquer
12 Min Stack Medium Older Stack, Design
13 N-Queens II Hard Older Backtracking, Algorithm X
14 Number of Islands Medium Older Array, Depth-First Search, Breadth-First Search, Union-Find
15 Reverse Linked List Easy Older Linked List, Recursion
16 Shortest Distance from All Buildings Hard Older Array, Breadth-First Search, Matrix
17 Sliding Window Maximum Hard Older Array, Queue, Sliding Window, Heap (Priority Queue)
18 Trapping Rain Water Hard Older Array, Two Pointers, Dynamic Programming, Stack
19 Valid Palindrome Easy Older Two Pointers, String
20 Valid Parentheses Easy Older String, Stack, Bracket Sequences
21 Verify Preorder Sequence in Binary Search Tree Medium Older Array, Stack, Tree, Binary Search Tree

Sources

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