Appian Interview Questions

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

Find Missing Number in Array

We're given an array of continuous numbers that should increment sequentially by 1 , which just means that we expect a sequence like: 1, 2, 3, 4, 5, 6, 7 However, we notice that there are some missing numbers in the sequence. 1, 2, 4, 5, 7 Can you write a method missingNumb...

Difficulty: 4/10

Merge Intervals

This is a classic interview question that is used in _a lot_ in technical interviews, frequently in the form of a calendar or meeting management application. As such, we'll also assume the same use case, as it's easier to visualize. Suppose we're given a few arrays, like 1, 4 , 2, 5 , 7,...

Difficulty: 5/10

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

Pick A Sign

We're given an array of positive integers like the following: js 2, 1, 3, 2 Imagine that we're allowed to make each element of the array either a positive or negative number, indicated by a signage either a plus or minus sign that appears before it. If we sum up all the si...

Difficulty: 7/10

Find Shortest Palindrome Possible

We have a string str like the following: js const str "bubble" Find a way to convert it to a palindrome by inserting characters in front of it. Recall that a palindrome is defined as "a word, phrase, or sequence that reads the same backward as forward". What's the shortes...

Difficulty: 5/10

Max Product of Three Numbers

Given an unsorted array of integers, can you write a method maxProductOfThree unsorted: array to find the largest product from three of the numbers? For example, given the following array: 1, 9, 22, 3, 15, 7 The largest product of three numbers is 2310 . This results from 15 * 7 * 22 ...

Difficulty: 5/10

Count the Planes

Assume that we are building software to determine how many planes are in the sky. The data that we have on planes currently in the air comes in the form of a grid, modeled by a matrix array. See below: '.', '.', '.', 'P' , '.', '.', '.', 'P' , 'P', 'P', '.', 'P' , '.', '.', '.',...

Difficulty: 5/10

Add Linked List Numbers

We're provided the following two linked lists: 1 2 3 4 and 2 5 8 Each one represents a number in reversed order, so 1 2 3 4 represents 4321 and 2 5 8 represents 852 *note: for an extra challenge, consider if they weren't reversed* . The lists are guarante...

Difficulty: 7/10

Length of String Compression

Let's define the "compacting" of a string as taking an input like the following: 'sstttrrrr' . We want to take the number of sequential appearances number of times it shows up in a row of each letter: s: 2 t: 3 r: 4 And denote them next to the original character in the string,...

Difficulty: 6/10

Introduction to C++

Introduction to C Welcome to the world of C ! C is a powerful programming language that is widely used in various domains, including networking and engineering, especially in the field of finance. If you have an entry level understanding of C and have watched YouTube videos and online c...

Difficulty: 5/10

Hashing

**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

Introduction to Data Engineering

What is Data Engineering? Data Engineering is a field that focuses on the design, development, and maintenance of the technological infrastructure required to efficiently manage data within an organization. Data Engineers play a crucial role in ensuring that data is available, accessible, and p...

Difficulty: 5/10

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People at Appian Say

This information was sourced from reviews originally posted on Glassdoor.

I think the work environment at Appian is one of the best I've been in. Everyone is competent and helpful, the work is interesting, and the compensation is great. Appian is the first company I've worked for post-graduation and it's definitely better than any place I've interned at. Management seems very on top of things and I trust that this company is going places.

The people you work with have an incredible impact on your work experience. The people at Appian are what make it a fantastic place to work.

The best part about working at Appian is being part of such an incredible, fun, welcoming, and supportive culture. There are tons of opportunities to get involved and have an impact, even as a new employee. The environment is extremely collaborative, giving everyone the opportunity to work, learn, and succeed together. The people at Appian are genuinely some of the most kind and competent individuals I have ever met. I am consistently impressed with how willing everyone is to drop what they are working on to help others. On top of that, there are tons of opportunities for growth at Appian and the company is invested in YOUR ability to learn. Other fun perks (some specific to Engineering) include free breakfast every Monday, flexible dress code, designated work hours set aside for personal learning/improvement and working on independent projects, great office snacks, and flexible working hours. I genuinely look forward to going to work every day at Appian! :)