noops-challenge / interviewbot

Like a whiteboard challenge, except more useless.

👋 Meet Interviewbot

Interviewbot is Fizzbot's cousin. After job applicants pass the Fizzbot exam, they are invited to meet Interviewbot and solve some coding puzzles.

Like Fizzbot, Interviewbot has a number of questions for you. Interviewbot's questions are more difficult, so you might want to try your hand at Fizzbot first.

📖 How does it work?

To start your interview, access:

https://api.noopschallenge.com/interviewbot/start

The first question is easy—enter your GitHub username.

POST to interviewbot/start a JSON object with your username: { 'login': 'noops-challenge' }

Interviewbot will respond with the nextQuestion.

Answering each question correctly will grant you access to the next question, in the nextQuestion field of the response.

Complete API documentation: API.md

🎉 Interview Success!

If you can answer all of the questions, Interviewbot will grant you a certificate proving that you passed the interview.

The interview is timed, so be quick.

⛏️ Starter Kit: Ruby

Not sure where to begin? Try our Ruby Starter Kit to get a headstart on your interview. It shows how to interact with the Interviewbot API.

✨ A few ideas

• Try a new language: Write a solver in a new-to-you language that accesses the API and answers the interview questions.
• More like this: One of the questions involves prime factorization. If you liked that question, you might be interested in Project Euler, compendium of questions of varying difficulty. Have fun!
• Suggest a question: Do you have ideas for other questions Interviewbot should ask? Send us a pull request with your ideas. If we like them, we'll add them to interviewbot's list.

More about Interviewbot at noopschallenge.com.

interviewbot's Issues

Certificate URL's are broken?

When I finish the challenge I try to access my certificate, however on both the API sub-domain and the main noopschallenge domain the url that gets returned by the Interview-bot results in a 404. Is this still part of the challenge and I'm not understanding something or is it actually broken?

Here is the response I get when finished (I've redacted the certificate URL):

Congratulations leviaviv28! You completed the challenge in 1.676 seconds. I am happy to present you with the attached certificate.

result: "finished"
elapsedTime: 1676
certificate: "/interviewbot/exam/certificate/{redacted}"

And when I visit the certificate URL I get:
{"message":"The requested resource was not found"}
When I do a get call to it I get this:
urllib.error.URLError: <urlopen error [Errno 11001] getaddrinfo failed>

Please let me know if this is intended or not, and thanks for the fun challenges!

Interviewbot responses "Sorry, that is incorrect" for answers that seems to be correct

I received the following question from Interviewbot:

{
  "questionPath": "...",
  "question": "seventeen times eighty-eight divided by ninety-five minus thirty-three plus  ninety-seven plus  eighty-seven minus sixty-two",
  "message": "Please compute the numeric value of seventeen times eighty-eight divided by ninety-five minus thirty-three plus  ninety-seven plus  eighty-seven minus sixty-two. Note that, like most programming languages, multiplication and division have higher precedence than addition and subtraction",
  "exampleResponse": { "answer": 300 }
}

To numbers, that's: 17 * 88 / 95 - 33 + 97 + 87 - 62

I've tried to answer with 104, 105, 104.74736842105261, 104.74736842105263, 104.7473684210526315789473684210526315789473684210526315789, and even the string "9951/95". All of these answers give me the same response:

{
  "message": "Sorry, that is incorrect",
  "result": "incorrect"
}

I've also tried answering in words: "nine thousand nine hundred fifty-one divided by ninety-five"

{
  "message": "Please provide your answer as a number",
  "result": "incorrect"
}

What's going on here? 104.74736842105261 seems to be the most reasonable answer. I've tried "9951/95" because that's the exact value. The decimal representation is non-terminating: 104.7473684210526315789 (The repeating digits are in bold).