I-th term of the Fibonacci sequence

fib.cpp

#include <iostream>

using namespace std;

unsigned int fib(unsigned int n) {
    if(n == 0) return 0;
    if(n == 1) return 1;
    return fib(n-1)+fib(n-2);
}

int main(){
    int n = 0;
    
    cin >> n;
    cout << fib(n) << endl;
}