HDU1017——简单数学题（考查你的读题能力）A Mathematical Curiosity

这是一道比较简单的题，因为n给的比较小，所以直接用for循环来判断就好了。

但是要注意输入输出格式，因为一不小心就会造成PE。

题目如下：

Given two integers n and m, count the number of pairs of integers (a,b) such that 0 < a < b < n and (a^2+b^2 +m)/(ab) is an integer.

This problem contains multiple test cases!

The first line of a multiple input is an integer N, then a blank line followed by N input blocks.Each input block is in the format indicated in the problem description. There is a blank line between input blocks.

The output format consists of N output blocks. There is a blank line between output blocks.

 输入样例：

1

 

10 1

20 3

30 4

输出样例：

Case 1: 2

Case 2: 4

Case 3：5

题目的大致意思是：

给定两个整数n和m，计算形如(a,b)的整数对数，使(a^2+b^2+m)/(ab)算出来的结果也是一个整数。别忘了，a,b要符合0<a<b<