本文介绍了一个数学概念——平方自由数，并提供了一段用于判断整数是否为平方自由数的程序代码。平方自由数是指除了1以外，不能被任何完全平方数整除的整数。
HDU 3826 Squarefree number：题目解答源码
In mathematics,a squarefree number is one which is divisible by no perfect squares,except 1.For example,10 is square-free but 18 is not,as it is divisible by 9=3^2.Now you need to determine whether an integer is squarefree or not.
输入描述
The first line contains an integer T indicating the number of test cases.
For each test case,there is a single line contains an integer N.
程序源码
源代码如下
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