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## fibonacci2
### Instructions
4 years ago
Complete the body of the **function** `fibonacci`.
This function receives a number `n` and returns the `n`th number in the fibonacci series.
The Fibonacci Series starts like this: 0, 1, 1, 2, 3, 5, 8, 13 etc...
### Recommendation
Videos designed to give **hints** are assigned to each quest. It is strongly suggested to watch them as you go.
### Notions
4 years ago
- [Primitives](https://doc.rust-lang.org/stable/rust-by-example/primitives.html)
- [Functions](https://doc.rust-lang.org/stable/rust-by-example/fn.html)
### Expected function
```rust
pub fn fibonacci(n: u32) -> u32 {
}
```
### Usage
Here is a possible test for your function:
```rust
use fibonacci2::fibonacci;
fn main() {
println!("The element in the position {} in fibonacci series is {}",2, fibonacci(2));
println!("The element in the position {} in fibonacci series is {}",4, fibonacci(4));
println!("The element in the position {} in fibonacci series is {}",22, fibonacci(22));
println!("The element in the position {} in fibonacci series is {}", 20, fibonacci(20));
}
```
And its output:
```console
$ cargo run
The element in the position 2 in fibonacci series is 1
The element in the position 4 in fibonacci series is 3
The element in the position 22 in fibonacci series is 17711
The element in the position 20 in fibonacci series is 6765
$
```