This is a example I got from website. I run it, the output is weird,
can anybody tell me the reason?
Thanks!


#include <iostream.h>
#include <string.h>

 struct students student_info(struct students data);
 void print(struct students data);

 #define MAX_STU 5

 struct students {
 char name[30];
 int age;
 char grade[2];
 int iq;
 };


 main() {

 students student[MAX_STU];
 int i;

 //get the data
 for (i=1; i<MAX_STU; ++i) {
 student[i] = student_info(student[i]);
 }

 //print the data
 for (i=1; i<=MAX_STU; ++i) {
 print(student[i]);
 }
 }

 struct students student_info(struct students data) {
 cout << "what is the students name: ";
 cin.getline (data.name, 30);
 cout << "What is the students age: ";
 cin >> data.age;
 cout << "What is the students grade: ";
 cin.getline (data.grade, 2);
 cout << "What is the students IQ: ";
 cin >> data.iq;
 return (data);
 }


 void print(struct students data) {
 cout << "Name: " << data.name << endl;
 cout << "Age: " << data.age << endl;
 cout << "Grade: " << data.grade << endl;
 cout << "IQ: " << data.iq << endl << endl;
 }