Problem 12. Fibonacci sequence
Calculate the nth Fibonacci number.
Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ...
Examples:
Input n = 5
Output f is 5
Input n = 7
Output f is 13
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Miron Krejci
on 5 Mar 2024
Good one
William Katzianer
on 6 Feb 2025
@Christian you still can do it without if/else chains. Just create a lookup table of fibonacci answers and then pull n+1 from the sequence. No if/else required
Jason
on 10 Mar 2025
The first Fibonacci number is 0, not 1.
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