Câu 1

#include<iostream>
using namespace std;
int fibonacci(int n)
{
    if (n == 1 || n == 2) return 1;
    return fibonacci(n - 1) + fibonacci(n - 2);
}
void DaySoFibonacci(int n)
{
    for (int i = 1; i <= n; i++)
    {
        cout << fibonacci(i)<<" ";
    }
}
int main()
{
    int n;
    cout <<"Nhap n: ";
    cin >> n;
    cout<<"Day so fibonacci toi so thu "<<n<<": ";
    DaySoFibonacci(n);
    system("pause");
    return 0;
}