CSP练习8：打酱油

#include <iostream>
using namespace std;
int main(void)
{
	int n;
	cin >> n;
	int count;
	count = n / 10;
	int e;
	e = count / 5;
	int f = count % 5;
	int o = f / 3;
	count = count + e * 2 + o;
	cout << count << endl;
	system("pause");
	return 0;
}