Пожалуйста, помогите ! это срочно . Приведенный ниже код не показывает выходные данные для условий if . Пожалуйста, помогите мне решить эту проблему!

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#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<dos.h>
void main()
{
  clrscr();
  int x;
  x = 0;
  char ch1[100] , ch2 , ch3 , ch4 , ch5 , ch6 , ch7 , ch8 , ch9 , ch10 , ch11;
  cout<<"\n\n\n\n\n\t\t WELCOME !!!\n\n";
  cout<<"\n\t\t Please enter your name : ";
  gets(ch1);
  cout<<"\n\n\t\t LOADING ..... ";
  delay(2000);
  { clrscr();
    cout<<"\n\n\n\t Hi ";
    puts(ch1);
    cout<<"\n\n\t Just go through the rules before beginning the QUIZ !";
    cout<<"\n\n\t Please wait ....";
    delay(2000);
  }
  { clrscr();
    cout<<"\n\n\n\t\t RULES :- \n\n\t";
    delay(2000);
    cout<<" 1) The questions are multiple choice questions.\n\n\t";
    delay(3000);
    cout<<" 2) There is only one correct option to every question.\n\n\t";
    delay(3000);
    cout<<" 3) Enter answer in the form of 'a' , 'b' , 'c' or 'd' only.\n\n\t";
    delay(3000);
    cout<<" 4) 10 points will be awarded for every correct answer.\n\n\t";
    delay(3000);
    cout<<" 5) No points will be deduced for wrong answer.\n\n\t\t\t\t\t";
    delay(2000);
    cout<<" Enjoy the QUIZ !...";
    delay(2000);
    { clrscr();
      cout<<"\n\n\n";
      cout<<"\t\t Q1: Where is RAM located ?\n\n";
      cout<<"\t\t a) Expansion Board\n\n\t\t b) External Drive\n\n\t\t c) Mother Board\n\n\t\t d) All of above\n\n\t\t ";
   XX:cin>>ch2;
      if(ch2=='c')
      { x = x + 10;
	cout<<"\n\n\t\t Absolutely Correct !\n\n\t\t Your score is: "<<x<<"\n\n";
      }
      else
      { if((ch2=='a')||(ch2=='b')||(ch2=='d'))
	cout<<"\n\n\t\t Oops ! Wrong answer.\n\n\t\t The correct answer is c) Mother Board.\n\n";
	else
	{ cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
	  goto XX;
	}
      }
      { clrscr();
	cout<<"\n\n\t\t Q2: Java was originally invented by : \n\n";
	cout<<"\t\t a) Oracle\n\n\t\t b) Microsoft\n\n\t\t c) Novell\n\n\t\t d) Sun\n\n\t\t ";
     YY:cin>>ch3;
	if(ch3=='d')
	{ x = x + 10;
	  cout<<"\n\n\t\t Good Job !\n\n\t\t Your score is : "<<x<<"\n\n";
	}
	else
	{ if((ch3=='a')||(ch3=='b')||(ch3=='c'))
	  cout<<"\n\n\t\t Sorry wrong answer !\n\n\t\t The correct answer is d) Sun.\n\n";
	  else
	  { cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
	    goto YY;
	  }
	}
	{ clrscr();
	  cout<<"\n\n\t\t Q3: India's first super computer is : \n\n";
	  cout<<"\t\t a) Agni\n\n\t\t b) Flow solver\n\n\t\t c) Param\n\n\t\t d) Trisul\n\n\t\t ";
       ZZ:cin>>ch4;
	  if(ch4=='c')
	  { x = x + 10;
	    cout<<"\n\n\t\t Awesome !\n\n\t\t Your score is : "<<x<<"\n\n";
	  }
	  else
	  { if((ch4=='a')||(ch4=='b')||(ch4=='d'))
	    cout<<"\n\n\t\t Oops ! You are wrong.\n\n\t\t The correct answer is c) Param.\n\n";
	    else
	    { cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
	      goto ZZ;
	    }
	  }
	  { clrscr();
	    cout<<"\n\n\t\t Q4: ROM is composed of : \n\n";
	    cout<<"\t\t a) Floppy Disk\n\n\t\t b) Magnetic cores\n\n\t\t c) Microprocessors\n\n\t\t d) Photoelectric cells\n\n\t\t ";
	 AA:cin>>ch5;
	    if(ch5=='d')
	    { x = x + 10;
	      cout<<"\n\n\t\t Great Job !\n\n\t\t Your score is : "<<x<<"\n\n";
	    }
	    else
	    { if((ch5=='a')||(ch5=='b')||(ch5=='c'))
	      cout<<"\n\n\t\t Sorry wrong answer !\n\n\t\t The correct answer is d) Photoelectric cells.\n\n";
	      else
	      { cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid opition (a,b,c,d).\n\n\t\t ";
		goto AA;
	      }
	    }
	    { clrscr();
	      cout<<"\n\n\t\t Q5: The word length of a computer is measured in : \n\n";
	      cout<<"\t\t a) Bits\n\n\t\t b) Bytes\n\n\t\t c) Millimetres\n\n\t\t d) Metres\n\n\t\t ";
	   BB:cin>>ch6;
	      if(ch6=='b')
	      { x = x + 10;
		cout<<"\n Well Done !\n Your score is : "<<x<<"\n\n";
	      }
	      else
	      { if((ch6=='a')||(ch6=='c')||(ch6=='d'))
		cout<<"\n\n\t\t Oops ! This is wrong !\n\n\t\t The correct answer is b) Bytes.\n\n";
		else
		{ cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
		  goto BB;
		}
	      }
	      { clrscr();
		cout<<"\n\n\t\t Q6: Compiliers and Interpreters are themselves : \n\n";
		cout<<"\t\t a) High Level Language\n\n\t\t b) Codes\n\n\t\t c) Mnemonics\n\n\t\t d) Programs\n\n\t\t ";
	     CC:cin>>ch7;
		if(ch7=='d')
		{ x = x + 10;
		  cout<<"\n\n\t\t Awesome !\n\n\t\t Your score is : "<<x<<"\n\n";
		}
		else
		{ if((ch7=='a')||(ch7=='b')||(ch7=='c'))
		  cout<<"\n\n\t\t Wrong answer !\n\n\t\t The correct answer is d) Programs\n\n";
		  else
		  { cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
		    goto CC;
		  }
		}
		{ clrscr();
		  cout<<"\n\n\t\t Q7: Who is considered as The Father of Artificial Intelligence ?\n\n";
		  cout<<"\t\t a) Alan Turing\n\n\t\t b) John McCarthy\n\n\t\t c) George Boole\n\n\t\t d) Allen Newell\n\n\t\t ";
	       DD:cin>>ch8;
		  if(ch8=='b')
		  { x = x + 10;
		    cout<<"\n\n\t\t Great Job !\n\n\t\t Your score is : "<<x<<"\n\n";
		  }
		  else
		  { if((ch8=='a')||(ch8=='c')||(ch8=='d'))
		    cout<<"\n\n\t\t Sorry wrong answer !\n\n\t\t The correct answer is b) John McCarthy.\n\n";
		    else
		    { cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
		      goto DD;
		    }
		  }
		  { clrscr();
		    cout<<"\n\n\t\t Q8: CD ROM is a/an : \n\n";
		    cout<<"\t\t a) Optical device\n\n\t\t b) Magnetic device\n\n\t\t c) Electro Magnetic device\n\n\t\t d) Mechanical device\n\n\t\t ";
		 EE:cin>>ch9;
		    if(ch9=='c')
		    { x = x + 10;
		      cout<<"\n\n\t\t Brilliant !\n\n\t\t Your score is : "<<x<<"\n\n";
		    }
		    else
		    { if((ch9=='a')||(ch9=='b')||(ch9=='d'))
		      cout<<"\n\n\t\t Oops ! You are wrong !\n\n\t\t The correct answer is c) Electro Magnetic device.\n\n";
		      else
		      { cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
			goto EE;
		      }
		    }
		    { clrscr();
		      cout<<"\n\n\t\t Q9: Who is the founder of Bing ?\n\n";
		      cout<<"\t\t a) Steve Ballmer\n\n\t\t b) David Filo\n\n\t\t c) Jeny Yang\n\n\t\t d) None of the above\n\n\t\t ";
		   FF:cin>>ch10;
		      if(ch10=='a')
		      { x = x + 10;
			cout<<"\n\n\t\t Absolutely correct !\n\n\t\t Your score is : "<<x<<"\n\n";
		      }
		      else
		      { if((ch10=='b')||(ch10=='c')||(ch10=='d'))
			cout<<"\n\n\t\t Wrong answer !\n\n\t\t The correct answer is a) Steve Ballmer.\n\n";
			else
			{ cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
			  goto FF;
			}
		      }
		      { clrscr();
			cout<<"\n\n\t\t Q10: Who are the founders of Google ?\n\n";
			cout<<"\t\t a) Larry Page & Sergey Brin\n\n\t\t b) Jawed Karim & Chad Hurley\n\n\t\t c) Steve Chen & Chad Hurley\n\n\t\t d) Jerry Yang & Steve Ballmer\n\n\t\t ";
		     GG:cin>>ch11;
			if(ch11=='a')
			{ x = x + 10;
			  cout<<"\n\n\t\t Brilliant Job !\n\n\t\t Your score is : "<<x<<"\n\n";
			}
			else
			{ if((ch11=='b')||(ch11=='c')||(ch11=='d'))
			  cout<<"\n\n\t\t Sorry wrong answer !\n\n\t\t The correct answer is a) Larry Page & Sergey Brin.\n\n";
			  else
			  { cout<<"\n\n\t\t Invalid opiton !!!\n\n\t\t Please enter a valid option (a,b,c,d).\n\n\t\t ";
			    goto GG;
			  }
			}
			{ clrscr();
			  cout<<"\n\n\n\t\t Well Done ! ";
			  cout<<"\n\n\t\t Here's the result ";
			  cout<<"\n\n\n\t\t\t\t LOADING";
			  delay(1000);
			  cout<<".";
			  delay(1000);
			  cout<<".";
			  delay(1000);
			  cout<<".";
			  delay(1000);
			  cout<<".";
			  delay(2000);
			  if((x==100)||(x==90)||(x==80))
			  { cout<<"\n\n\t\t AWESOME !!!\n\t\t You are Extremely BRILLIANT !!!\n\t\t Keep it up !\n\t\t Your total score is : "<<x;
			  }
			  else
			  { if((x==70)||(x==60)||(x==50))
			    cout<<"\n\n\t\t Good Job !\n\t\t You can perform more better.\n\t\t Your score is : "<<x;
			    else
			    { if((x==40)||(x==30))
			      cout<<"\n\n\t\t You are Average !\n\t\t Better luck next time !\n\t\t Your total score is : "<<x;
			      else
			      cout<<"\n\n\t\t Not a Good performance !!!\n\t\t Your total score is : "<<x;
			    }
			  }
			}
		      }
		    }
		  }
		}
	      }
	    }
	  }
	}
      }
    }
  }
}

Что я уже пробовал:

Приведенная ниже часть всех вопросов не показывает никаких результатов !

if(ch5=='d')
	    { x = x + 10;
	      cout<<"\n\n\t\t Great Job !\n\n\t\t Your score is : "<<x<<"\n\n";
	    }
	    else
	    { if((ch5=='a')||(ch5=='b')||(ch5=='c'))
	      cout<<"\n\n\t\t Sorry wrong answer !\n\n\t\t The correct answer is d) Photoelectric cells.\n\n";
	      else
	      { cout<<"\n\n\t\t Invalid option !!!\n\n\t\t Please enter a valid opition (a,b,c,d).\n\n\t\t ";
		goto AA;
	      }
	    }

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