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38 lines
654 B
38 lines
654 B
4 years ago
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## fibonacci2
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### Instructions
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Complete the body of the function `fibonacci`.
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This functions receives a number n and returns the nth number in the fibonacci series.
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The Fibonacci Series starts like this: 0, 1, 1, 2, 3, 5, 8, 13... so fibonacci(2) = 1 and fibonnacci(4) = 3
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### Expected function
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```rust
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fn fibonacci(n: u32) -> u32 {
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}
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```
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### Usage
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Here is a possible test for your function:
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```
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn it_works() {
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assert_eq!(fibonacci(2), 1);
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assert_eq!(fibonacci(4), 1);
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assert_eq!(fibonacci(22), 17711);
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assert_eq!(fibonacci(20), 6765);
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}
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}
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```
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