ZeneFits Interview Questions

TriNet Zenefits is a technology company based in San Francisco, that offers cloud-based software as a service to companies for managing their human resources, with a particular focus on helping them with payroll and health insurance coverage. The company was founded in 2013.

It has got a 4.1* rating on Glassdoor and is considered one of the best product-based companies. It is highly regarded for its work-life balance.

They provide good training as well which will be beneficial in future too. You can practice the below questions collected from Zenefits Interview Experience for the interview. We have collected past frequently asked questions from Zenefits Interview Experience for your reference.

Zenefits Array Questions

Question 1. Trapping Rain Water Leetcode Solution Problem Statement The Trapping Rain Water LeetCode Solution – “Trapping Rain Water” states that given an array of heights which represents an elevation map where the width of each bar is 1. We need to find the amount of water trapped after rain. Example: Input: height = [0,1,0,2,1,0,1,3,2,1,2,1] Output: 6 Explanation: Check ...

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Question 2. Majority Element II Leetcode Solution In this problem, we are given an array of integers. The goal is to find all the elements which occur more than ⌊N / 3⌋ time in the array where N = size of the array and ⌊ ⌋ is the floor operator. We need to return an array of ...

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Question 3. Elements Appear more than N/K times in Array Problem Statement In the “Elements Appear more than N/K times in Array” problem we have given an integer array of size n. Find the elements which appear more than n/k times. Where k is the input value. Input Format The first and only one line containing two integers N and ...

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Question 4. Majority Element Problem Statement Given a sorted array, we need to find the majority element from the sorted array. Majority element: Number occurring more than half the size of the array. Here we have given a number x we have to check it is the majority_element or not. Example Input 5 2 ...

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Zenefits String Questions

Question 5. Online Algorithm for Checking Palindrome in a Stream Problem Statement In the “Online Algorithm for Checking Palindrome in a Stream” problem, we have given a stream of characters(charcaters are received one by one). Write a program that will print ‘yes’ every time if the received characters till now form a palindrome. Input Format The first and only one ...

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Zenefits Stack Questions

Question 6. Trapping Rain Water Leetcode Solution Problem Statement The Trapping Rain Water LeetCode Solution – “Trapping Rain Water” states that given an array of heights which represents an elevation map where the width of each bar is 1. We need to find the amount of water trapped after rain. Example: Input: height = [0,1,0,2,1,0,1,3,2,1,2,1] Output: 6 Explanation: Check ...

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Zenefits Other Questions

Question 7. Reverse Nodes in k-Group LeetCode Solution Problem Statement: Reverse Nodes in k-Group LeetCode Solution – Given the head of a linked list, reverse the nodes of the list k at a time, and return the modified list. k is a positive integer and is less than or equal to the length of the linked list. If the number of nodes is ...

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Question 8. LRU Cache Leetcode Solution Problem Statement The LRU Cache LeetCode Solution – “LRU Cache” asks you to design a data structure that follows Least Recently Used (LRU) Cache We need to implement LRUCache class that has the following functions: LRUCache(int capacity): Initializes the LRU cache with positive size capacity. int get(int key): Return the value ...

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Question 9. Flatten 2D Vector LeetCode Solution Problem Statement Flatten 2D Vector LeetCode Solution – Design an iterator to flatten a 2D vector. It should support the next and hasNext operations. Implement the Vector2D class: Vector2D(int[][] vec) initializes the object with the 2D vector vec. next() returns the next element from the 2D vector and moves the pointer one step forward. You may assume that all ...

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Question 10. Graph Valid Tree LeetCode Solution Problem Statement Graph Valid Tree LeetCode Solution – Given the edges of a graph, check if the edges make up a valid tree. If yes, return true and false otherwise. The edges are given as a 2D array of size n*2 Examples & Explanations Example 1: Input: n = 5, ...

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Question 11. Excel Sheet Column Title LeetCode Solution Problem Statement Excel Sheet Column Title LeetCode Solution – We are given a column number (let’s call it colNum) and need to return its corresponding column title as it appears in an excel sheet For example A -> 1 B -> 2 C -> 3 … Z -> 26 AA ...

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Question 12. Majority Element Leetcode Solution Problem Statement We are given an array of integers. We need to return the integer which occurs more than ⌊N / 2⌋ time in the array where ⌊ ⌋ is the floor operator. This element is called the majority element. Note that the input array always contains a majority element. ...

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