【PAT乙级真题解惑1012数字分类】2025-3-29

缘由PAT乙级真题解惑1012数字分类_编程语言-CSDN问答

	int n = 0, x = 0, j = 0, a[5]{}, g = 0; bool z = 1;
	std::cin >> n;//13 1 2 3 4 5 6 7 8 9 10 16 18 20
sr:if (x < n)
{
	   std::cin >> j;
	   if (j % 5 == 0 && j % 2 == 0)
		   a[0] += j;
	   else if (j % 5 == 1)
		   a[1] += (z ? j : -j), z = !z;
	   else if (j % 5 == 2)
		   ++a[2];
	   else if (j % 5 == 3)
		   a[3] += j, ++g;
	   else if (j % 5 == 4 && a[4] < j)
		   a[4] = j;
	   ++x;
	   goto sr;
}
   x = 0;
sc:if (x < 5)
{
	   if (a[x])
	   if (x == 3)
		   std::cout << std::fixed << std::setprecision(1) << a[x] * 1.0 / g << " ";
	   else
		   std::cout << a[x] << (x < 4 ? " " : "\n");
	   else
		   std::cout << "N ";
	   ++x;
	   goto sc;
}

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