Check out example codes for "calc". It will help you in understanding the concepts better.

Code Example 1

ok I'll stop cheating thank you

Code Example 2

shut up guys im just trying to do my science homework!!!!

Code Example 3

#include <iostream>
using namespace std;

main(){
cout << "stop using a calculator" << endl;
}

Code Example 4

could mean "to calculate" or the combination of certain integers. 
Not to be confused with concatination, the combination of (mainly string) 
<cont. from line 2> variables

Code Example 5

#include <iostream>
#define LOG(x) std::cout << x << std::endl

struct BadGamer{
  void BAD(){
  	LOG("Uses Calculator and is Bad at games");
  }
};
struct GoodGamer{
  void GOOD(){
  	LOG("Doesn't use Calculator and is Good at games");
  }
};

int main(){
  int rep;
  LOG("Do you Use calculator");
  std::cin >> rep >> std::endl;
  if(rep == 1){
  	BadGamer.BAD();
  }
  if(rep == 0){
  	GoodGamer.GOOD();
  }else{
    std::cout << "BRUUH" std::endl;
  }
}

Code Example 6

this is calc

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