PiWithoutMacro.cpp

#include <bits/stdc++.h>
using namespace std;

int main(void)
{
  // Generates the value of the macro PI, without having to rely on an already existing macro in C++
  // Since the macro varies from compiler to compiler
  std::cout << "Value of PI: " << std::setprecision(20) << acos(-1) << std::endl;
  
  return 0;
}