这个程序不会从用户那里获取更多的信息，只是运行而不获取信息，并在获取用户信息的空白处显示随机字母，并idk要做什么

using namespace std;

struct employee
{
    char name[20];
    int no;
    char duty;
    float salary_per_day;
};
int main()
{
    struct employee b[10];
    int i;
    cout<<"enter the details of the employee :"<<endl;
    for(i=0;i<3;++i)
    {
        b[i];
        cout<<"employees name :"<<b[i].name<<endl;
        cout<<"enter name =";
        cin>>b[i].name;
        cout<<"employees number:"<<b[i].no<<endl;
        cout<<"enter number =";
        cin>>b[i].no;
        cout<<"employees duty:"<<b[i].duty<<endl;
        cout<<"enter duty = ";
        cin>>b[i].duty;
        cout<<"employees salary:"<<b[i].salary_per_day<<endl;
        cout<<"enter salary = ";
        cin>>b[i].salary_per_day;
    }
    cout<<"display info of employees:"<<endl;
    for(i=0;i<3;++i)
    {
        cout<<endl<<"info of employees:";
        cout<<endl<<"name:"<<b[i].name;
        cout<<endl<<"number:"<<b[i].no;
        cout<<endl<<"duty:"<<b[i].duty;
        cout<<endl<<"salary:"<<b[i].salary_per_day;
    }