这个结果是对的但是就是不通过

YUNNNN @ 2023-12-07 20:58:10

package _issue;
//求阶乘之和
import java.math.BigInteger;
import java.util.Scanner;

public class _1 {
    public static  void main(String[]args)
    {
        Scanner s=new Scanner(System.in);
        int num=s.nextInt();
        BigInteger sum=new BigInteger("0");
        for (int i = 1; i <= num; i++) {
            BigInteger a=new BigInteger("1");
            for (int j = 1; j <= i; j++) {
                a=a.multiply(BigInteger.valueOf(j));
            }
            sum=sum.add(a);
        }
        System.out.println(sum);
    }
}

by xiezheyuan @ 2023-12-07 21:19:56

@YUNNNN

类名改成 Main 就可以过了。

import java.math.BigInteger;
import java.util.Scanner;

public class Main {
    public static  void main(String[]args)
    {
        Scanner s=new Scanner(System.in);
        int num=s.nextInt();
        BigInteger sum=new BigInteger("0");
        for (int i = 1; i <= num; i++) {
            BigInteger a=new BigInteger("1");
            for (int j = 1; j <= i; j++) {
                a=a.multiply(BigInteger.valueOf(j));
            }
            sum=sum.add(a);
        }
        System.out.println(sum);
    }
}

求关

by Zpril_20211017 @ 2023-12-08 21:51:03

@sz_mane 注意帖子编号

by Special_Tony @ 2023-12-09 11:14:24

@Zpril 艹

by YUNNNN @ 2023-12-12 17:31:39

@xiezheyuan OK谢谢