leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
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1359.cpp (218B)

      1 class Solution {
      2   public:
      3     int countOrders(const int n) {
      4         long res = 1, mod = (long)1E9 + 7;
      5         for (int i = 1; i <= n; i++)
      6             res = res * (i * 2 - 1) * i % mod;
      7         return res;
      8     }
      9 };