random.h

#ifndef RANDOM_H
#define RANDOM_H
#include <random> 

int randomNum(int min, int max){
   static bool first = true;
   if (first) 
   {  
      srand( time(NULL) ); 
      first = false;
   }
   return min + rand() % (( max + 1 ) - min);
}

#endif