19 lines
352 B
Rust
19 lines
352 B
Rust
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use std::io;
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fn fib(n: i64) -> i64 {
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match n {
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0 => 1,
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1 => 1,
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o => fib(o-1) + fib(o-2),
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}
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}
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fn main() {
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println!("enter number to fib:");
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let mut buffer = String::new();
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let stdin = io::stdin();
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stdin.read_line(&mut buffer).unwrap();
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println!("{}", fib(buffer.trim().parse::<i64>().unwrap()));
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}
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