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In Java, an array is a data structure that stores elements of the same type.

The basics of creating, changing, and using lists in Python.

Some men are on an island. A genie comes down and gathers everyone to­gether and places a magical hat on some people’s heads.

Learn to make websites using HTML, one step at a time.

While solving and practicing USACO problems, a recurring yet minor inconvenience is the repetitive copy-pasting of boilerplate code at the beginning of each new problem.