main cpp code example

Example 1: python main

def main():
    print("Hello World!")

if __name__ == "__main__":
    main()

Example 2: python main

if __name__ == "__main__":
    # execute only if run as a script
    main()

Example 3: c++ main function

int main() {
  
  //Your code... Or someone elses, doesn't really matter.
  
  return 0;
}