Rust Programming 2023 - A Comprehensive Course for Beginners - Exercise - What Are Functions in Rust

The video tutorial guides viewers through writing a Rust function called 'plus one' that takes an integer and returns it incremented by one. It emphasizes the need for understanding functions, variables, and Rust basics. The tutorial also covers implementing a main function to test the 'plus one' function and encourages viewers to attempt the exercise before revealing the solution in the next video.

What should be printed in the main function after invoking the 'plus one' function?

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What is the overall goal of the exercise mentioned in the text?

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