#include <iostream>
using namespace std;
int main()
{
int cnt = 0;
for(int a = 0; a <= 2; a++)
{
for(int b = 0; b <= 5; b++)
{
for(int c = 0; c <= 10; c++)
{
if(0.5 * a + 0.2 * b + 0.1 * c == 1)
{
cout << "5角钱的个数为:" << a << "张" << " ";
cout << "2角钱的个数为:" << b << "张" << " ";
cout << "1角钱的个数为:" << c << "张" << " ";
cnt++;
cout << endl;
}
}
}
}
cout << "共有" << cnt << "种情况" << endl;
return 0;
}