蓝桥杯算法训练VIP-提货单-题解（Java代码）

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

Scanner scanner=new Scanner(System.in);

int n=scanner.nextInt();

double sum=0;

while(n!=0) {

String str=scanner.next();

double a=scanner.nextDouble();

double b=scanner.nextDouble();

sum+=a*b;

n--;

}

System.out.printf("%6f",sum);

}

}