~cpp 
#include <iostream>
#include <ctime>
using namespace std;

int main()
{
	srand(time(0));
	int solution[3];
	int i;
	do
	{
		i=0;
		while (i<3)
		{
			solution[i]= rand() % 10;
			++i;
		}
	}while (solution[0]==solution[1] || solution[1]==solution[2] || solution[0]==solution[2]);
		
	cout << "정답 : " << int(solution[0]) << int(solution[1]) << int(solution[2]) << endl;
	int strike,ball,temp;
	int answer[3];
	while (strike<3)
	{
		strike=0, ball=0;
		cin >> temp;
		answer[0]=temp/100;
		answer[1]=(temp%100)/10;
		answer[2]=temp%10;

		for (int i=0 ; i<3 ; i++)
		{
			if (solution[i]==answer[i])
			{
				strike++;
				continue;
			}
			for (int j=0 ; j<3 ; j++)
				if (solution[j]==answer[i])
					ball++;
		}
		cout << "strike : " << strike << "\tball : " << ball << endl;
	}

	return 0;
}