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Hack facts & stats

7 fact-checked facts about hackathons and programming competitions, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

What does 'MVP' mean for a hackathon project?

AnswerMinimum viable product

An MVP is the smallest version that shows the idea works.

What is a 'demo' at the end of a hackathon?

AnswerA short presentation showing what was built

Teams demo their project to judges and attendees.

Going deeper

What is the ICPC?

AnswerA major international collegiate programming contest

The International Collegiate Programming Contest is for university teams.

What does Big O notation describe?

AnswerHow an algorithm's cost grows with input size

Big O expresses time or space growth, like O(n log n).

What is the typical time complexity of binary search on a sorted array?

AnswerO(log n)

Binary search halves the search range each step.

Expert level

What does 'AC' mean on a competitive programming judge?

AnswerAccepted

AC means your solution passed all tests.

Which sorting algorithm has a worst-case time of O(n log n) and uses a heap?

AnswerHeapsort

Heapsort guarantees O(n log n); quicksort can degrade to O(n squared).

Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round