c加加小问题代码小错误了

#include
using namespace std;
struct student
{int num;
char name[20];
float score;
}
int main()
{student stud[3]={1001,"Li",78,1002,"Wang",89.5,1004,"Fang",90};
char c[50];
ostream strout(c,30);
for(int i=0;i<3;i++)
strout<<stud[i].num<<stud[i].name<<stud[i].score;
strout<<ends;
cout<<"array c:"<<c<<endl;
}