Questions tagged [interview-questions]
This tag is for questions that came up in an interview.
961 questions
10votes
3answers
2kviews
C++ std::optional implementation for tech interview
I'm preparing for entry-level C++ developer interview and decided to implement some of std:: members. Here's my implementation of std::optional. I would be grateful ...
- 101
0votes
3answers
175views
Java exceptions that show the message when converted to String
I’m working with custom exceptions in Java for stack operations. However, I’m unsure if the exception handling is being handled properly, especially in terms of how exceptions are thrown and caught. ...
3votes
1answer
94views
File list and monitor
I recently was given a take home assignment for a job interview. The task was specified like so: ...
- 139
4votes
2answers
208views
Tetris logic for interview
I would appreciate feedback on the code below which I created during an one-hour live interview session. In particular, while the interviewer pretty much said nothing during the interview, their ...
5votes
2answers
617views
Thread-safe write-efficient register() method for a Load balancer
The code below was written for an interview question of designing a load balancer with only a register() method. ...
- 313
13votes
8answers
2kviews
Counting Occurrences of a Specific 3-Bit Pattern in a Byte Array
I was asked this problem in an interview, and this is the solution I came up with. I was told it's not the most efficient solution, but I can't think of any other solution. This is the problem. ...
- 133
4votes
4answers
182views
Reversing string in PHP
I got this task to evaluate my knowledges in PHP. I was asked to avoid using functions like strrev() or array_reverse(). ...
Stacanovist
2votes
2answers
129views
A thread-safe performant Money Transfer API in Java
This is a popular interview question. It is meant to be done within 30 minutes. The task is to implement a thread-safe performant Bank Account API that allows to transfer, deposit, withdraw and check ...
- 343
7votes
2answers
1kviews
A thread-safe performant URL Shortener in Java
This is a popular interview question. It is meant to be done within 45 minutes. The task is to implement a thread-safe performant in-memory URL Shortener. My implementation is based on two maps that ...
- 343
5votes
1answer
534views
Create an address self-complete bar
I recently received the following code challenge in connection with a job interview. After submitting, I was rejected. I want to know what (if anything) I could have done better here. Task Your task ...
- 201
5votes
1answer
250views
String character changes (case insensitive) - Go
I saw this question on one of the socials, presented as an Apple interview question. I have had to paraphrase as it was not given in text format. (Credit: Instagram @greghogg5) Given a string (S) ...
4votes
1answer
186views
Last Stone Weight Problem in Haskell using list `insert`
Background Saw this problem on TheJobOverflow which seems to be a LeetCode question. It bothered me that the "challenge" of this problem was to recognize the need for a specific data-type (...
- 171
11votes
4answers
2kviews
Simple Key Value Database using C
I was recently doing an assignment for a job interview, which asked to create a simple key value database with 4 command line operations: create key value: Adds a key value pair/updates an existing ...
- 111
3votes
3answers
244views
Extracting records from a 2D List of strings
Recently I had an interview question about extracting records that matched certain criteria from a 2D List of strings. The premise was a CSV file was parsed into a ...
- 131
1vote
1answer
126views
Simple Curry function
This is a interview practice question from BFE.dev. Currying is a useful technique used in JavaScript applications. Please implement a curry() function, which ...
