py3 C C++階乘模運算速解Leetcode 3577 Count the Number of Computer Unlocking Pe...

py3 C C++階乘模運算速解Leetcode 3577  Count the Number of Computer Unlocking Permutations

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Py3 C++利用Euclid公式達O(n)解Leetcode1925 Count Square Sum Triples

Py3 C++利用Euclid公式達O(n)解Leetcode 1925  Count Square Sum Triples

用數論方法解畢氏定理三角整數解個數，這應該算是Diophantine  Equation中最簡單的例題

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