44 lines
510 B
Rust
44 lines
510 B
Rust
// Make me compile! Scroll down for hints :)
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fn main() {
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let answer = square(3);
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println!("The answer is {}", answer);
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}
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fn square(num: i32) -> i32 {
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num * num;
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}
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// This is a really common error that can be fixed by removing one character.
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// It happens because Rust distinguishes between expressions and statements: expressions return
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// a value and statements don't. We want to return a value from the `square` function, but it
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// isn't returning one right now...
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