题目号是p1909，然后数据用idea跑没问题，这边跑就显示RE，测试数据下载下来也没毛病

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        int x,y,z,num,money,ans;
        String a;
        String[]b;
        Scanner s1 = new Scanner(System.in);
        Scanner s2 = new Scanner(System.in);
        z = s1.nextInt();
        a = s2.nextLine();
        b = a.split(" ");
        x = Integer.valueOf(b[0]);
        y = Integer.valueOf(b[1]);
        if (z % x != 0){
            num = z / x + 1;
        }else {
            num = z / x;
        }
        ans = num*y;
        for (int i = 1;i < 2;i++){
            z = s1.nextInt();
            a = s2.nextLine();
            b = a.split(" ");
            x = Integer.valueOf(b[0]);
            y = Integer.valueOf(b[1]);
            if (z % x != 0){
                num = z / x + 1;
            }else {
                num = z / x;
            }
            money = num * y;
            if (ans > money)
                ans = money;
        }
        System.out.print(ans);
    }
}