Find the Nth Term of the Fibonacci Series
Detailed guide and Python implementation for the 'Find the Nth Term of the Fibonacci Series' problem.
Problem Statement
Write a function fibonacci_nth(n) that takes a positive integer n and returns the nth term of the Fibonacci series (1-indexed). The series is: F(1) = 0, F(2) = 1, F(3) = 1, F(4) = 2, F(5) = 3, ...
- •1 <= n <= 50
Examples
n = 5
3
The 5th Fibonacci term is 3. The series: 0, 1, 1, 2, 3.
n = 1
0
The 1st Fibonacci term is 0.
n = 10
34
The 10th Fibonacci term is 34. The series: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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