성적처리프로그램

~cpp
#include <iostream>
using namespace std;

int main()
{
	int i ;
	int num[5]={0} ;
	do{
		cout << "점수를 입력하시오 : " ;
		cin >> i ;
	    cout << endl;
		if ( i == 9999)
			break; // 9999입력시 숫자 포함 방지 
		switch ( i / 10 )
		{
			case 9:
				num[0]++;
				break;
			case 8:
				num[1]++;
				break;
			case 7:
				num[2]++;
				break;
			case 6:
				num[3]++;
				break;
			case 10:
				num[0]++;
				break;
			default:
				num[4]++;

		}
	}
	while( i != 9999);

    cout << "A : " << num[0] << endl;
	cout << "B : " << num[1] << endl;
	cout << "C : " << num[2] << endl;
	cout << "D : " << num[3] << endl;
	cout << "F : " << num[4] << endl;
	
	system("pause");
	return 0;
}