编辑代码

//斐波那契简易版
#include <iostream>
using namespace std;
int main() {
    int n;
    cin >> n;
    while(n>-1){
        long long a = 1;
        long long b = 0;
        for(int i=0;i<n;i++){
            long long c,d;
            c = 1+b;
            d = a+b;
            a = c;
            b = d;
        }
        cout<<b<<' '<<a+b<<endl;
        cin >> n;
    }
	return 0;
}