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document fibonacci program

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Krishna Vedala 2020-05-27 15:42:23 -04:00
parent e31ee6e833
commit 49fe1b11ef
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1 changed files with 12 additions and 6 deletions
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math/fibonacci.cpp
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@ -1,12 +1,17 @@
/**
* @file
* @brief Generate fibonacci sequence
*
* Calculate the the value on Fibonacci's sequence given an
* integer as input.
* \f[\text{fib}(n) = \text{fib}(n-1) + \text{fib}(n-2)\f]
*/
#include <cassert>
#include <iostream>
/* Calculate the the value on Fibonacci's sequence given an
integer as input
Fibonacci = 0, 1, 1, 2, 3, 5,
8, 13, 21, 34, 55,
89, 144, ... */
/**
* Recursively compute sequences
*/
int fibonacci(unsigned int n) {
/* If the input is 0 or 1 just return the same
This will set the first 2 values of the sequence */
@ -16,6 +21,7 @@ int fibonacci(unsigned int n) {
return fibonacci(n - 1) + fibonacci(n - 2);
}
/// Main function
int main() {
int n;
std::cin >> n;