Simple C++ program to calculate n-th element of Fibonacci sequence.
// ? 2017 TheFlyingKeyboard and released under MIT License // theflyingkeyboard.net #include <iostream> using namespace std; int fibonacci(int n); int main(){ int n; cout << "Enter a number: "; cin >> n; cout << "Fibonacci of: " << n << " is equal to: " << fibonacci(n); return 0; } int fibonacci(int n) { int fib = 0; int fibPrev1 = 1; int fibPrev2 = 0; for(int i = 2; i <= n; i++){ fib = fibPrev1 + fibPrev2; fibPrev2 = fibPrev1; fibPrev1 = fib; } return fib; }
C++ Fibonacci