Cvent Interview Questions

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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

Graph Algorithms

**Unlock Your Full Potential with AlgoDaily!** We hope you're enjoying this course. At AlgoDaily, our aim is to transform complex coding challenges into engaging, bite sized lessons. And while our free lessons give you a glimpse of this transformative experience, there's so much more in store. ...

Difficulty: 5/10

Stacks

Introduction to Stacks A stack is a fundamental data structure in computer science that follows the **Last In, First Out LIFO ** principle. It is an ordered collection of elements where the **addition** of new elements and the **removal** of existing elements occur at the **same end**. This en...

Difficulty: 5/10

Fenwick Tree Query Operations

What is a Fenwick Tree? A Fenwick Tree, also known as a Binary Indexed Tree BIT , is a data structure that allows efficient querying and updating of cumulative sums of elements in an array. It was invented by Peter Fenwick in 1994 and is commonly used in computational geometry, graph algorith...

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...