What does 'CSS' stand for?
AnswerCascading Style Sheets
CSS controls how web pages look.
Coding · Facts & stats
Dev facts & stats
7 fact-checked facts about software development and programming, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What is open-source software?
AnswerSoftware whose source code is public to use and modify
Open-source code is published under licenses that allow reuse.
Going deeper
Who created the Python language?
AnswerGuido van Rossum
Van Rossum released Python in 1991.
Which HTTP method is typically used to retrieve data?
AnswerGET
GET requests fetch a resource without changing it.
What is the decimal number 10 in binary?
Answer1010
8 + 2 = 10, written 1010.
Expert level
Which sorting algorithm is stable and guarantees O(n log n) in the worst case?
AnswerMerge sort
Merge sort is stable and always O(n log n); heapsort is not stable.
What is the average-case time for a hash table lookup?
AnswerO(1)
Hashing jumps straight to the right bucket on average.
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