[ C++ ] 반 평균 구하기

#include <iostream> 

using namespace std;

int main(){
	string name;
	const int student = 5;
	int score[student], sum;
	cout << "지도 교수명 : "; 
	getline(cin,name);
	cout << endl;
	
	for(int i=0; i<student; i++){
		cout<<i+1<<"번 학생 점수를 입력해주세요."<<endl;
		cin>>score[i];
		sum += score[i];
	}
	
	cout << endl<<"지도교수명 : "<<name <<endl;
	cout << "합 : "<<sum<<",   평균 : "<<(float)sum/student<<endl;
}