// Allows user to specify number of times to run
// the windows disk defrag utility on C:
#include <string>
#include <iostream>
#include <windows.h>
using namespace std;

int main()
{
  int loop = 0;
  int alpha;   // alpha is how many times the user wants to run it
  string drive;
  cout<<"Please enter the drive letter you would like to defrag.\n(enter a single letter)\n";
  cin>>drive;
  string defrag  = "defrag " + drive + ": -f";
  string anylize = "defrag " + drive + ": -a -v";
  string numbers = "Please enter a number between 0 and 20\n";
  string plural = " "; // see below
  cout<<"Anylizing your "<<drive<<": drive, Please Wait.\n\n";
  system(anylize);   // sends command to system
  cout<<"\nHow many times do you want to defrag?\n";
top:
  cin>>alpha;
  if (alpha == 0)          // If the user inputs 0, program ends.
   {
    goto end;
   }
  else
  {
    if (alpha < 0){
      cout<<numbers;
      goto top;   }
    else                   // 0>alpha>20 informs user of cap and allows new input
    {
      if (alpha > 20) {
        cout<<numbers;
        goto top;     }
      else
      {
        system("cls");
        while (loop<alpha) // loops until it reaches the user's input
         {
          loop++;
          if (loop==1){    // if/else to use correct plurality of "pass"
            plural = " ";}
          else {
            plural ="es ";}
          system(defrag);
          system("cls");
          cout<<loop<<" Pass"<<plural<<"completed.\n\n";
         }
      }
    }
  }
end:
cout<<"\nAll done.\nPress enter to exit.\n";
cin.get();
}

const char* std::string::c_str();

// Allows user to specify number of times to run
// the windows disk defrag utility on C:
#include <string>
#include <iostream>
#include <windows.h>
using namespace std;

int main()
{
  int loop = 0;
  int numberOfRuns;   // numberOfRuns is how many times the user wants to run it
  string drive;
  cout<<"Please enter the drive letter you would like to defrag.\n(enter a single letter)\n";
  cin>>drive;
  string defrag  = "defrag " + drive + ": -f";
  string anylize = "defrag " + drive + ": -a -v";
  string numbers = "Please enter a number between 0 and 20\n";
  string plural = " "; // see below
  bool done = false;
  cout<<"Anylizing your "<<drive<<": drive, Please Wait.\n\n";
  system(anylize.c_str());   // sends command to system
  cout<<"\nHow many times do you want to defrag?\n";
 while (!done)
{
  cin>>numberOfRuns;
  if (numberOfRuns == 0)          // If the user inputs 0, program ends.
   {
    done = true;
   }
  else
  {
    if (numberOfRuns < 0){
      cout<<numbers;
    }
    else                   // 0>numberOfRuns>20 informs user of cap and allows new input
    {
      if (numberOfRuns > 20) {
        cout<<numbers;
        }
      else
      {
        system("cls");
        while (loop<numberOfRuns) // loops until it reaches the user's input
         {
          loop++;
          if (loop==1){    // if/else to use correct plurality of "pass"
            plural = " ";}
          else {
            plural ="es ";}
          system(defrag.c_str());
          system("cls");
          cout<<loop<<" Pass"<<plural<<"completed.\n\n";
         }
         done = true;
      }
    }
  }
}
cout<<"\nAll done.\nPress enter to exit.\n";
cin.get();
}