ZZULIOJ 1135: 算菜价，Java

1135: 算菜价

import java.util.Scanner;
public class Main {
    
    
    public static void main(String[] args) {
    
    
        Scanner cin = new Scanner(System.in);
        double ans=0;
        while(cin.hasNext())
        {
    
    
            String str=cin.next();
            double w=cin.nextDouble();
            double p=cin.nextDouble();
            ans+=w*p;
        }
        System.out.printf("%.1f",ans);
    }
}