为什么会停止运行啊！！！急！！！

#include <iostream>
using namespace std;
class CStudent
{
public:
    CStudent(char * n,int i,char * s,int a,char * m,int in);
    CStudent(void);
    ~CStudent(void)  {}
    void score(void);
    void print(void);
private:
    char name[10];
    int idnum;
    int age;
    char major[10];
    char sex[2];
    int in_time;
    char subject[10][10][10];
    int grades[10][10];
};
CStudent::CStudent(void){}
CStudent::CStudent(char * n,int i,char * s,int a,char * m,int in)
{
    cout<<"请输入姓名,学号,性别,年龄,专业,入学时间:"<<endl;
    cin>>n>>i>>s>>a>>m>>in;
    strcpy(name,n);
    idnum=i;
    strcpy(sex,s);
    age=a;
    strcpy(major,m);
    in_time=in;
    cout<<"基本信息已录入!"<<endl;
}
void CStudent::score(void)
{
    cout<<"请分别输入课程及分数(8门)!"<<endl;
    int i,j,k;
    for(i=0;i!=8;++i)
    {
        for(j=0;j!=4;++j)
        {
            for(k=0;k!=2;++k)
                cin>>subject[i][j][k];
        }
        cin>>grades[i][j];
    }
    cout<<endl;
}

void CStudent::print(void)
{
    cout<<"\n"<<"\t"<<"\t"<<"\t"<<"以下为学生基本信息:"<<"\n"<<endl;
    cout<<"姓名:"<<name<<"  "<<"学号:"<<idnum<<"  "<<"性别:"<<sex<<"  "<<"年龄:"<<age<<"  "<<"专业:"<<major<<"  "<<"入学时间:"<<in_time<<"\n"<<endl;
    cout<<"  学科  "<<"\t"<<"学科成绩"<<"\t"<<"学分绩点"<<"\n"<<endl;
    int i,j,k;
    for(i=0;i!=8;++i)
    {
        for(j=0;j!=4;++j)
        {
            for(k=0;k!=2;++k)
            {
                cout<<subject[i][j][k];
            }
        }         
        if((grades[i][j]<60)&&(grades[i][j]>=0))
            cout<<"\t"<<"   "<<grades[i][j]<<"\t"<<"\t"<<"0"<<endl;
        else if((grades[i][j]>60)&&(grades[i][j]<=80))
            cout<<"\t"<<"   "<<grades[i][j]<<"\t"<<"\t"<<"1.5"<<endl;
        else if((grades[i][j]>80)&&(grades[i][j]<=90))
            cout<<"\t"<<"   "<<grades[i][j]<<"\t"<<"\t"<<"3"<<endl;
        else
            cout<<"\t"<<"   "<<grades[i][j]<<"\t"<<"\t"<<"5"<<endl;
    //    cout<<"\t"<<grades[i][j];
        cout<<endl;
    }
}

int main()
{
    CStudent stu("黎明",704,"男",20,"物联网",2011);
    stu.score();
    stu.print();
    return 0;
}
//大学数学 99 大学语文 78 大学英语 99 大学体育 59 大学物理 99 数字逻辑 99 电路分析 99 近现代史 99