Cvent Interview Questions

Note: ensure you read the disclaimer on the previous page reading the accuracy and sourcing of these problems.

Lamps and Houses

On a given street, there's a bunch of houses and lamps nearby. It looks kind of like the following H being houses, L being lamps : L H L H H 0 1 2 3 4 We decide to represent this with two arrays: one being the positions of the houses, and the other the positions of the lamps. From the ...

Difficulty: 8/10

Sum All Primes

You're given a number n . Can you write a method sumOfAllPrimes that finds all prime numbers smaller than or equal to n , and returns a sum of them? For example, we're given the number 15 . All prime numbers smaller than 15 are: 2, 3, 5, 7, 11, 13 They sum up to 41 , so sumOfA...

Difficulty: 4/10

Stock Buy and Sell Optimization

This is a classic technical interview question that I've seen a number of times in real life interviews. Let's say you're given an array of stock prices, with each element being an integer that represents a price in dollars. 10, 7, 6, 2, 9, 4 Each index of the array represents a s...

Difficulty: 5/10

Longest Palindromic Substring

We're given a string that's a mixture of several alphabetical characters. js const str "algototheehtotdaily" Could you write a method to find the longest substring that is considered a palindrome? In the above example, it would be "totheehtot" . Where there are multiple longest ...

Difficulty: 7/10

Levenshtein Edit Distance

An edit distance is a way to quantify how different two strings are. This is calculated using **the minimum number of transformations to turn one string to another**. The transformations include insertion , deletion , and substitution . So when comparing two identical strings, say cat and ca...

Difficulty: 7/10

Find First Non-Repeating Character

You're given a string of random alphanumerical characters with a length between 0 and 1000 . Write a method to return the first character in the string that does not repeat itself later on. So if we had a string input of "asdfsdafdasfjdfsafnnunl'" , we can see there are multiple letters that...

Difficulty: 4/10

Bottom Left Node Value

Assume we're using a binary tree lessons an intro to binary trees and search trees in writing a video game via Binary Space Partitioning https: en.wikipedia.org wiki Binary_space_partitioning . We need to identify the bottom left leaf, that is the leftmost value in the lowest row of the bi...

Difficulty: 4/10

Linked List to Binary Search Tree

We're given a sorted singly linked list that is, a linked list made of nodes with no pointers to the previous node where the elements are already arranged in ascending order. js 9 2 3 5 9 Linked List Node Definition: function Node val this.val val this...

Difficulty: 7/10

Matrix Operations

Here's a fun one: let's say we have a 2D array matrix that is a size of m rows and n columns. It is initially prefilled with 0 s and looks like the following: js 0, 0, 0, 0 , 0, 0, 0, 0 , 0, 0, 0, 0 We are then given a list of increment operations to be performed on ...

Difficulty: 7/10

AJAX and APIs

AJAX Asynchronous JavaScript and XML is a powerful technique used in web development to create more interactive and dynamic user experiences. It allows web pages to send and receive data from a server without requiring a full page reload. In traditional web development, when a user interacts wit...

Difficulty: 5/10

Objects and Key-Value Stores

In this lesson, we will learn about a new type of data structure called objects, with a focus on the following key points, 1. What are objects and how are they used? 2. Working with objects and key value pairs in JavaScript. For the Python version of this lesson, please click here https: ...

Difficulty: 5/10

Lesson 2: Advanced Algorithms and Problem Solving

Introduction to Advanced Algorithms In this lesson, we will explore the fascinating world of advanced algorithms and their importance in problem solving. As a seasoned engineer with a strong background in coding, you understand the significance of algorithms in developing efficient solutions. ...

Difficulty: 5/10

Interview Reports

28 Cvent, Inc. Interview Questions (with Answers)...

Practice 28 Cvent, Inc. Interview Questions with professional interview answer examples with advice on how to answer each question. With an additional 55 professionally written interview answer exampl...