Nth Fibonacci Number

Write a function long long fib(int n) that returns the nth Fibonacci number, where fib(0) = 0, fib(1) = 1, and each later value is the sum of the previous two.

For fib(10) the program prints 55.

Expected Output:

55↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

Functions

Code Editor

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