枚举：摸球

#include 
using namespace std;
enum Color { red, yellow, blue, white, black };
int main()
{
	int n = 0;
	const char* strColor[5] = { "red\t","yellow\t","blue\t","white\t","black\t" };
	for (int i = red; i <= black; i++)
		for (int j = red; j <= black; j++)
			for (int k = red; k <= black; k++)
				if (!(i == j || k == i || k == j))
					cout << n++ << "\t" << strColor[i] << strColor[j] << strColor[k] << endl;
	cout << "total:" << n << endl;
}