View Compilation Error

0_0_39787390_6498.cpp: In function 'int main()':
0_0_39787390_6498.cpp:10:37: error: 'M_PI' is not a member of 'std'
   10 |         a = 0.5 * std::log(2 * std::M_PI * n) / std::log(10) + n * std::log(n / std::M_E) / std::log(10);
      |                                     ^~~~
0_0_39787390_6498.cpp:10:86: error: 'M_E' is not a member of 'std'
   10 |         a = 0.5 * std::log(2 * std::M_PI * n) / std::log(10) + n * std::log(n / std::M_E) / std::log(10);
      |                                                                                      ^~~