题解 | Mileage Bank

#include <iostream>

using namespace std;

int main() 
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    string initial, final;
    int mile;
    char airpline;
    int sum = 0;
    while(cin >> initial)
    {
        if(initial == "#") return 0;
        else if(initial == "0")
        {
            cout << sum << "\n";
            sum = 0;
        }
        cin >> final >> mile >> airpline;
        if(airpline == 'F') sum += mile * 2;
        else if(airpline == 'B') sum += (mile * 3 + 1) / 2;
        else if(airpline == 'Y')
        {
            if(mile <= 500) sum += 500;
            else sum += mile;
        }
    }
    return 0;
}