The Fibonacci sequence is a series of numbers in which each number is the sum of the two preceding ones, usually starting with 0 and 1. The sequence starts with 0 and 1, and then each number is the sum of the two preceding ones.
You are given a function fibonacci(n: u32) -> u32 that takes a number n and returns the n-th number in the Fibonacci sequence.
Your job is to implement the function meeting the following requirements:
n is 0, the function should return 0.n is 1, the function should return 1.n is greater than 1, the function should return the sum of the two preceding numbers.Here are some examples of how the behavior of the function should look like:
assert_eq!(fibonacci(0), 0); // Returns 0
assert_eq!(fibonacci(1), 1); // Returns 1
assert_eq!(fibonacci(2), 1); // Returns 1 + 0 = 1
assert_eq!(fibonacci(3), 2); // Returns 1 + 1 = 2
assert_eq!(fibonacci(4), 3); // Returns 2 + 1 = 3
assert_eq!(fibonacci(5), 5); // Returns 3 + 2 = 5
assert_eq!(fibonacci(6), 8); // Returns 5 + 3 = 8
assert_eq!(fibonacci(7), 13); // Returns 8 + 5 = 13pub fn fibonacci(n: u32) -> u32 { if n == 0 || n == 1 { n } else { let mut idx = 1; let mut current = 1; let mut previous = 0; for _ in idx..n { let temp = current; current += previous; previous = temp; idx += 1; } current }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0, 1 => 1, _ => fibonacci(n-1) + fibonacci(n-2) }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0, 1 => 1, _ => fibonacci(n-1) + fibonacci(n-2) }}pub fn fibonacci(n: u32) -> u32 { match n { 0 => 0, 1 => 1, _ => fibonacci(n - 2) + fibonacci(n - 1), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match(n) { 0 => 0, 1 => 1, _ => fibonacci(n-1) + fibonacci(n-2) }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { return 0 } if n == 1 { return 1 } let mut prev = 0; let mut current = 1; for _ in 2..=n { let next = prev + current; prev = current; current = next; } current}pub fn fibonacci(n: u32) -> u32 { match n { 0 => 0, 1 => 1, _ => fibonacci(n - 1) + fibonacci(n - 2), }}pub fn fibonacci(n: u32) -> u32 { match n { 0 => 0, 1 => 1, _ => fibonacci(n - 1) + fibonacci(n - 2), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { 0 } else if n == 1 { 1 } else { let mut a=0; let mut b=1; for _ in 2..=n{ let mut temp=a+b; a=b; b=temp; } b }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { 0 } else if n == 1 { 1 } else { let mut a=0; let mut b=1; for _ in 2..=n{//3 let mut temp=a+b;//2 a=b;//1 b=temp;//2 } b }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { 0 } else if n == 1 { 1 } else { let mut a=0; let mut b=1; for _ in 2..=n{ let mut temp=a+b; a=b; b=temp; } b }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence _fib(n).0}fn _fib(n:u32) -> (u32, u32) { if n == 0 { (0, 0) } else if n == 1 { (1, 0) } else { let (a, b) = _fib(n-1); (a+b, a) }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 || n == 1{ return n; } fibonacci(n - 1) + fibonacci(n - 2)}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { return 0 } if n == 1 { return 1 } fibonacci(n - 1) + fibonacci(n - 2)}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0, 1 => 1, _ => fibonacci(n - 1) + fibonacci(n - 2), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0, 1 => 1, _ => fibonacci(n - 1) + fibonacci(n - 2), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n <= 1 { n } else { fibonacci(n - 1) + fibonacci(n - 2) }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { return 0; } else if n == 1 { return 1; } else { return fibonacci(n-1) + fibonacci(n-2); }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 || n == 1 { n } else { fibonacci(n-1) + fibonacci(n-2) }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0, 1 => 1, _ => { fibonacci(n - 1) + fibonacci(n - 2) }, }}pub fn fibonacci(n: u32) -> u32 { match n { 0 => 0, 1 => 1, _ => fibonacci(n-1) + fibonacci(n-2), } }pub fn fibonacci(n: u32) -> u32 { match n { 0 => 0, 1 => 1, _ => fibonacci(n - 1) + fibonacci(n - 2), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { return 0; } else if n == 1 { return 1; } fibonacci(n-1) + fibonacci(n-2)}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequenc return match n { 0 => 0, 1 => 1, _ => fibonacci(n-2) + fibonacci(n-1) }}use std::ops::{Div, Sub};pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence (1.618034_f32.powi(n as i32).sub((1.0_f32.sub(1.618034_f32)).powi(n as i32)).div(5_f32.sqrt())) as u32}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0 , 1=> 1 , 2.. => fibonacci(n-1)+fibonacci(n-2), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n <= 1 { n } else { fibonacci(n-2) + fibonacci (n-1 ) } }pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0 , 1=> 1 , 2.. => fibonacci(n-1)+fibonacci(n-2), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n{ 0|1 => n, _ => fibonacci(n-1)+fibonacci(n-2) }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n <= 1 { return n } else { fibonacci(n-1) + fibonacci(n-2) }}pub fn fibonacci(n: u32) -> u32 { match n { 0 => 0, 1 => 1, 2.. => fibonacci (n - 1) + fibonacci (n - 2), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { return 0; } else if n == 1 { return 1; } return fibonacci(n-2) + fibonacci(n-1);}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n <= 1 { return n; } fibonacci(n - 1) + fibonacci(n - 2)} pub fn fibonacci(n: u32) -> u32 { let mut v: Vec<u32> = vec![0, 1]; if n == 0 { return v[0]; } else if n == 1 { return v[1]; } while v.len() != (n + 1).try_into().unwrap() { v.push(v[v.len() - 1] + v[v.len() - 2]); } v[v.len() - 1]}pub fn fibonacci(n: u32) -> u32 { if n <= 1 { return n; } fibonacci(n - 1) + fibonacci(n - 2)}pub fn fibonacci(n: u32) -> u32 { if n <= 1 { return n; } fibonacci(n - 1) + fibonacci(n - 2)}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n <= 1 { return n; } else { return fibonacci(n-2) + fibonacci(n-1); }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n <= 1 { return n; } else { return fibonacci(n-2) + fibonacci(n-1); }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n==0{ return 0; }else if n==1{ return 1; }else{ fibonacci(n-1)+fibonacci(n-2) } }pub fn fibonacci(n: u32) -> u32 { match n { 0 | 1 => n, _ => fibonacci(n-2)+fibonacci(n-1), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 { return 0; } if n == 1 { return 1; } let mut prev: u32 = 0; let mut cur: u32 = 1; for _ in 0..n - 1 { let tmp: u32 = prev + cur; prev = cur; cur = tmp; } return cur;}pub fn fibonacci(n: u32) -> u32 { if n == 0 || n == 1 { return n; } else { return fibonacci(&n-1) + fibonacci(&n-2) }}pub fn fibonacci(n: u32) -> u32 { match n { 0 | 1 => n, _ => fibonacci(n - 1) + fibonacci(n - 2), }}pub fn fibonacci(n: u32) -> u32 { if n == 0 { return 0; } else if n == 1 || n == 2 { return 1; } else { fibonacci(n - 1) + fibonacci(n - 2) } }pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence if n == 0 || n == 1 { n } else { let mut a = 0; let mut b = 1; let mut c = 0; for _ in 1..n { c = a + b; a = b; b = c; } c }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { n if n < 1 => return 0, 1 => return 1, n if n > 1 => return fibonacci(n-1) + fibonacci(n-2), _ => unreachable!("negitive numbers not implemented"), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { n if n < 1 => return 0, 1 => return 1, n if n > 1 => return fibonacci(n-1) + fibonacci(n-2), 0_u32 | 2_u32..=u32::MAX => todo!(), }}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence return match n{ 0 => 0, 1 => 1, _ => fibonacci(n-1) + fibonacci(n-2) };}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence let mut ret = match n{ 0 => 0, 1 => 1, _ => fibonacci(n-1) + fibonacci(n-2) }; return ret;}pub fn fibonacci(n: u32) -> u32 { // TODO: Implement the Fibonacci sequence match n { 0 => 0, 1 => 1, _ => fibonacci(n - 1) + fibonacci(n - 2), }}