Передача структур аргументами функций

#include 
#include 
#include 
#include 
using namespace std;
struct Marks{
char name[80];
int phys;
int chem;
int maths;
};
void set_one(Marks &str){
cout<<("Student name: ");
gets(str.name);
str.phys=3+rand()%3;
str.chem=3+rand()%3;
str.maths=3+rand()%3;
}
void set_all(Marks *str,int m){
for(int i=0; i < m; i++) set_one(str[i]);
}
void get(Marks *str,int m){
bool state;
char s[80];
do{
 cout<<"What is the student name? ";
 gets(s);
 if(!strcmp(s,"exit")) return;
 state=true;
 for(int i=0; i < m; i++){
 if(!strcmp(str[i].name,s)){
 state=false;
 cout << "Physiscs: " << str[i].phys << endl;
 cout << "Chemistry: " << str[i].chem << endl;
 cout << "Mathematics: " << str[i].maths << endl;
 break;
 }
 }
 if(state) cout << "There is no student with such name\n";
}while(true);
}
int main(){
const int n=3;
Marks students[n];
set_all(students,n);
get(students,n);
return 0;
}