TinhTienTaxi

#include<iostream>
using namespace std;

int main()
{
    int km;
    cout << "nhap km: ";
    cin >> km;

    if (km == 1)
    {
        cout << "5000";
    }
    else if (km <= 30)
    {
        cout << (km - 1) * 4000 + 5000;
    }
    else
    {
        cout << (km - 30) * 116000 + 5000;
    }
    system("pause");
    return 0;
}