誰得了最高獎學金

結構體得運用

#include<iostream>
#include<iterator>
#include<set>
using namespace std;
struct student
{
	char name[20];
	int Grade;
	int Gradeclass;
	char leader;
	char West;
	int Thesis;
	int Scholarship;


};


bool operator<(const student& s1,const student& s2)
{
	return s1.Scholarship>s2.Scholarship;
}

int Count(student &s)
{ s.Scholarship=0;
  if(s.Grade>80&&s.Thesis>=1)
	  s.Scholarship+=8000;
  if(s.Grade>85&&s.Gradeclass>80)
	  s.Scholarship+=4000;
  if(s.Grade>90)
	  s.Scholarship+=2000;
  if(s.Grade>85&&s.West=='Y')
      s.Scholarship+=1000;
  if(s.Gradeclass>80&&s.leader=='Y')
	  s.Scholarship+=850;
	return s.Scholarship;
}

int main()
{
	int N;
	cin>>N;
	while(N--)
	{
		int num;
		cin>>num;
		student s;
		set<student>group;
		int Total=0;
		for(int i=0;i<num;i++)
		{
			cin>>s.name>>s.Grade>>s.Gradeclass>>s.leader>>s.West>>s.Thesis;
		  Total+=Count(s);
		  group.insert(s);

		}
		set<student>::iterator it=group.begin();
		cout<<it->name<<endl<<it->Scholarship<<endl<<Total<<endl;



	}



}

在重載輸入流得時候出了問題

//istream&  operator>>(istream&  in,student s)
//{
//	in>>s.name>>s.Grade>>s.Gradeclass>>s.leader>>s.West>>s.Thesis;
//	return in;
//}

＝＝！ 沒加引用。。丟人

#include<iostream>
#include<iterator>
#include<set>
using namespace std;
struct student
{
	char name[20];
	int Grade;
	int Gradeclass;
	char leader;
	char West;
	int Thesis;
	int Scholarship;


};

istream&  operator>>(istream&  in,student &s)
{
	in>>s.name>>s.Grade>>s.Gradeclass>>s.leader>>s.West>>s.Thesis;
	return in;
}
bool operator<(const student& s1,const student& s2)
{
	return s1.Scholarship>s2.Scholarship;
}

int Count(student &s)
{ s.Scholarship=0;
  if(s.Grade>80&&s.Thesis>=1)
	  s.Scholarship+=8000;
  if(s.Grade>85&&s.Gradeclass>80)
	  s.Scholarship+=4000;
  if(s.Grade>90)
	  s.Scholarship+=2000;
  if(s.Grade>85&&s.West=='Y')
      s.Scholarship+=1000;
  if(s.Gradeclass>80&&s.leader=='Y')
	  s.Scholarship+=850;
	return s.Scholarship;
}

int main()
{
	int N;
	cin>>N;
	while(N--)
	{
		int num;
		cin>>num;

		set<student>group;
		int Total=0;
		for(int i=0;i<num;i++)
		{  student s;
			cin>>s;
		  Total+=Count(s);
		  group.insert(s);

		}
		set<student>::iterator it=group.begin();
		cout<<it->name<<endl<<it->Scholarship<<endl<<Total<<endl;



	}
}