Problem 3092. Return fibonacci sequence do not use loop and condition

Created by Binbin Qi
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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
but, loop and conditional statement is forbidden

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Last Solution submitted on Jun 27, 2025

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Miroslav Popovic on 4 Feb 2022

It does require understanding of linear reccurence relations with constant coefficients. Interesting problem overall

Tran Tran on 20 Mar 2022

Hint Instead using round which is forbidden.Try cast to other data types guys ( ͡° ͜ʖ ͡°)

Lam Thai Nguyen on 28 Dec 2023

you can use golden ratio for this problem.

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Problem 3092. Return fibonacci sequence do not use loop and condition

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Problem 3092. Return fibonacci sequence do not use loop and condition

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Last 200 Solutions

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Problem Recent Solvers698

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