d018: 字串讀取練習 FYI: https://yunlinsong.blogspot.com/2016/01/blog-post_26.html

d018.cpp

#include <iostream>
#include <sstream>

using namespace std;

int main()
{
    string str;

    while(getline(cin, str))
    {
        int serial;
        char dummy;
        double real;
        double result = 0;

        istringstream buffer(str);

        while(buffer >> serial >> dummy >> real)
        {
            //cout << serial << dummy << real << " ";
            if( serial & 1 )
                result += real;
            else
                result -= real;

            //cout << result << endl;
        }

        cout << result << endl;
    }

    return 0;
}