与本题无关，哪位大佬帮忙看看哪里错了，感谢

zhaoanqiEtayo @ 2023-08-07 10:49:55

void sum(int n) {
    int a = 1;
    for (int i = 1; i <= n; i++)
    {
        a = a * i;
    }
    return a;
}

int main()
{
    int n;
    scanf("%d", &n);
    printf("%d",sum(n));
    return 0;
}

by hexuchen @ 2023-08-07 10:50:41

@zhaoanqiEtayo 没加头文件

by hexuchen @ 2023-08-07 10:51:14

@zhaoanqiEtayo 函数名是void，不能有返回值

by ForEly @ 2023-08-07 10:53:14

@zhaoanqiEtayo

void函数不能返回一个值 请把它改成int

by robot_steve @ 2023-08-07 10:53:43

@zhaoanqiEtayo 你把void改成int就能过编译

by _Adolf_Hitler_ @ 2023-08-07 10:59:07

@zhaoanqiEtayo 有返回值就别用void

by xiaoshuaibi @ 2023-08-07 11:05:45

void用return;他是无返回函数