need help with repeatation

[kahheng93]

hi guys,i was trying to make user able to make selection again when they make an invalid input, but when i run this code,it just doesnt work that way,it goes printing the same line like crazy...did i do something wrong?

int main (void)


{	
//Local Declarations
	int menu;
	

//Statements

	time_t mytime;
	mytime = time(NULL);
	printf(ctime(&mytime));
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
	printf("\t\t@   WELCOME TO CHEMY'S CHEMISTRY   @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@            MAIN MENU             @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   1. CHEMISTRY QUIZ              @\n");
	printf("\t\t@   2. IDEAL GAS LAW CALCULATOR    @\n");
	printf("\t\t@   3. OPTIONAL GAME               @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   0. EXIT                        @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n\n");
	
	printf("Please choose your menu: ");
	scanf("%d", &menu);
	while(menu != 0)
	
	{
	switch(menu)
	{
	case 1: quiz();
        break; 
	case 2: calculator();
        break;
	case 3: optional();
        break;
	case 0: printf("Goodbye\n");
        break;
	default: printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
			 printf("Please choose your menu: ");
			 scanf("%d", &menu);
        break;
	}}

	return 0;

}

[zeroliken]

put the user input lines inside the loop otherwise the value of menu will never change

[kahheng93]

still, the line printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n"); is repeated again and again very fast when user input an invalid value

int main (void)


{	
//Local Declarations
	int menu;
	

//Statements

	time_t mytime;
	mytime = time(NULL);
	printf(ctime(&mytime));
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
	printf("\t\t@   WELCOME TO CHEMY'S CHEMISTRY   @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@            MAIN MENU             @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   1. CHEMISTRY QUIZ              @\n");
	printf("\t\t@   2. IDEAL GAS LAW CALCULATOR    @\n");
	printf("\t\t@   3. OPTIONAL GAME               @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   0. EXIT                        @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n\n");
	
	printf("Please choose your menu: ");
	scanf("%d", &menu);
	switch(menu)
	{
	case 1: quiz();
        break; 
	case 2: calculator();
        break;
	case 3: optional();
        break;
	case 0: printf("Goodbye\n");
        break;

	}


	while(menu != 0)
	{
		printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
		printf("Please choose your menu: ");
		scanf("%d", &menu);

	switch(menu)
	{
	case 1: quiz();
        break; 
	case 2: calculator();
        break;
	case 3: optional();
        break;
	case 0: printf("Goodbye\n");
        break;

	}
	}

	return 0;

}

[zeroliken]

remove the printf() at line 32 and put it as a default case and don't forget the break if it's not the last case
also menu can only take an int value

Edit: just use a single switch statement and a single loop on it and put the user input at the beginning of the loop
and this line:

printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");

should be the default case

[ddanbe]

Put line 32 in the default clause of the switch statement.
Remove lines 28&29
set menu to a starting value, other then 0.

[kahheng93]

remove the printf() at line 32 and put it as a default case and don't forget the break if it's not the last case
also menu can only take an int value

Edit: just use a single switch statement and a single loop on it and put the user input at the beginning of the loop
and this line:

printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");

should be the default case

im sorry,i dont get it, is this what u mean?

int main (void)


{	
//Local Declarations
	int menu;
	

//Statements

	time_t mytime;
	mytime = time(NULL);
	printf(ctime(&mytime));
	printf("Author: Pung Kah Heng, Seven Lim Xian Wen, Ng Wan Yee, Ernest Lee Yik Hieng\n\n\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
	printf("\t\t@   WELCOME TO CHEMY'S CHEMISTRY   @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@            MAIN MENU             @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   1. CHEMISTRY QUIZ              @\n");
	printf("\t\t@   2. IDEAL GAS LAW CALCULATOR    @\n");
	printf("\t\t@   3. OPTIONAL GAME               @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   4. EXIT                        @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n\n");
	
	printf("Please choose your menu: ");
	scanf("%d", &menu);
	switch(menu)
	{
	case 1: quiz();
        break; 
	case 2: calculator();
        break;
	case 3: optional();
        break;
	case 4: printf("Goodbye\n");
        break;
	default: printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
		break;

	}


	while(menu != 4)
	{
	printf("Please choose your menu: ");
	scanf("%d", &menu);

	switch(menu)
	{
	case 1: quiz();
        break; 
	case 2: calculator();
        break;
	case 3: optional();
        break;
	case 4: printf("Goodbye\n");
        break;
	default: printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
		break;

	}}
	return 0;

}

[zeroliken]

im sorry,i dont get it, is this what u mean?

At your last code lines 28-43 are unnecessary

[kahheng93]

but without line 28-29, the error comes up says variable 'menu' is being used without being defined...i think its easier if i give u full code and you can try run it to see whats wrong,thanks :D

#include <stdio.h>
#include <conio.h>
#include <time.h>



//Function Declarations
void quiz (void);
void calculator (void);
void optional (void);
void pressure (void);
void volume (void);
void mol (void);
void temperature (void);
void hangman (void);


int main (void)


{	
//Local Declarations
	int menu;
	

//Statements

	time_t mytime;
	mytime = time(NULL);
	printf(ctime(&mytime));
	printf("Author: Pung Kah Heng, Seven Lim Xian Wen, Ng Wan Yee, Ernest Lee Yik Hieng\n\n\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
	printf("\t\t@   WELCOME TO CHEMY'S CHEMISTRY   @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@            MAIN MENU             @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   1. CHEMISTRY QUIZ              @\n");
	printf("\t\t@   2. IDEAL GAS LAW CALCULATOR    @\n");
	printf("\t\t@   3. OPTIONAL GAME               @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   4. EXIT                        @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n\n");
	
	printf("Please choose your menu: ");
	scanf("%d", &menu);
	switch(menu)
	{
	case 1: quiz();
        break; 
	case 2: calculator();
        break;
	case 3: optional();
        break;
	case 4: printf("Goodbye\n");
        break;
	default: printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
		break;

	}


	while(menu != 4)
	{
	printf("Please choose your menu: ");
	scanf("%d", &menu);

	switch(menu)
	{
	case 1: quiz();
        break; 
	case 2: calculator();
        break;
	case 3: optional();
        break;
	case 4: printf("Goodbye\n");
        break;
	default: printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
		break;

	}}
	return 0;

}


//quiz

		
void quiz (void)
{	
	char back;
	char answer;
	int score = 0;
	
	//Question 1
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 1\n\n");
	printf("A balloon contains 4 moles of an ideal gas with a volume of 5.0 L.If an\n"); 
	printf("additional 8 moles of the gas is added at constant pressure and \n");
	printf("temperature, what will be the final volume of the balloon?\n");
	printf("<a> 15L\n");
	printf("<b> 30L\n");
	printf("<c> 45L\n");
	printf("<d> 60L\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'a')
	{score++;}

	//Question 2
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 2\n\n");
	printf("What is the density (in g/L) of a gas with a molar mass of 60 g/mol\n"); 
	printf("at 0.75 atm and 27 °C?\n");
	printf("<a> 1.83 g/L\n");
	printf("<b> 1.93 g/L\n");
	printf("<c> 2.83 g/L\n");
	printf("<d> 2.93 g/L\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'a')
	{score++;}

	//Question 3
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 3\n\n");
	printf("A mixture of helium and neon gases is held in a container at 1.2 atmospheres.\n"); 
	printf("If the mixture contains twice as many helium atoms as neon atoms, what is the\n");
	printf("partial pressure of helium?\n");
	printf("<a> 0.6 atm\n");
	printf("<b> 0.7 atm\n");
	printf("<c> 0.8 atm\n");
	printf("<d> 0.9 atm\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'c')
	{score++;}

	//Question 4
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 4\n\n");
	printf("4 moles of nitrogen gas are confined to a 6.0 L vessel at 177 °C and \n"); 
	printf("12.0 atm. If the vessel is allowed to expand isothermically to 36.0 L, \n");
	printf("what would be the final pressure?\n");
	printf("<a> 5.0 atm\n");
	printf("<b> 24.0 atm\n");
	printf("<c> 12.0 atm\n");
	printf("<d> 2.0 atm\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'd')
	{score++;}


	//Question 5
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 5\n\n");
	printf("A 9.0 L volume of chlorine gas is heated from 27 °C to 127 °C at constant\n"); 
	printf("pressure. What is the final volume?\n");
	printf("<a> 1.0 L\n");
	printf("<b> 2.0 L\n");
	printf("<c> 3.0 L\n");
	printf("<d> 4.0 L\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'b')
	{score++;}

	//Question 6
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 6\n\n");
	printf("The temperature of a sample of an ideal gas in a sealed 5.0 L container is\n"); 
	printf("raised from 27 °C to 77 °C. If the initial pressure of the gas was 3.0 atm,\n");
	printf("what is the final pressure?\n");
	printf("<a> 3.4 atm\n");
	printf("<b> 2.4 atm\n");
	printf("<c> 3.5 atm\n");
	printf("<d> 2.5 atm\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'c')
	{score++;}

	//Question 7
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 7\n\n");
	printf("A 0.614 mole sample of ideal gas at 12 °C occupies a volume of 4.3 L."); 
	printf(" What is the pressure of the gas?\n");
	printf("<a> 3.0 atm\n");
	printf("<b> 3.1 atm\n");
	printf("<c> 3.2 atm\n");
	printf("<d> 3.3 atm\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'd')
	{score++;}

	//Question 8
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 8\n\n");
	printf("Helium gas has a molar mass of 2 g/mol. Oxygen gas has a molar mass of \n");
	printf("32 g/mol.How much faster or slower would oxygen effuse from a small \n"); 
	printf("opening than helium?\n");
	printf("<a> Oxygen would effuse 1/4 as fast as helium (rO = 0.25 rHe)\n");
	printf("<b> Oxygen would effuse 1/2 as fast as helium (rO = 0.25 rHe)\n");
	printf("<c> Helium would effuse 1/4 as fast as oxygen (rO = 0.25 rHe)\n");
	printf("<d> Helium would effuse 1/2 as fast as oxygen (rO = 0.25 rHe)\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'd')
	{score++;}


	//Question 9
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 9\n\n");
	printf("What is the average velocity of nitrogen gas molecules at STP? Molar mass\n");
	printf("of nitrogen = 14 g/mol\n");
	printf("<a> 291.34 m/s\n");
	printf("<b> 493.15 m/s\n");
	printf("<c> 12.42 m/s\n");
	printf("<d> 21.57 m/s\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'b')
	{score++;}


	//Question 10
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*  Welcome to try CHEMY's CHEMISTRY QUIZ... Are you ready for it???  *\n");
	printf("\t**********************************************************************\n");
	printf("\n\n\nQuestion 10\n\n");
	printf("A 60.0 L tank of chlorine gas at 27 °C and 125 atm springs a leak. When \n");
	printf("the leak was discovered, the pressure was reduced to 50 atm. How many moles \n");
	printf("of chlorine gas escaped?\n");
	printf("<a> 187.5 moles\n");
	printf("<b> 287.5 moles\n");
	printf("<c> 387.5 moles\n");
	printf("<d> 487.5 moles\n");
	printf("\nPlease key in your answer: ");
	scanf(" %c", &answer);

	if (answer == 'a')
	{score++;}

	//Calculate Total Marks

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          CHEMY's CHEMISTRY QUIZ... Your score will be...           *\n");
	printf("\t**********************************************************************\n");
	printf("\n\nYour score is %d/10.\n\n", score);
	printf("\n\nWould you like to go back to main menu? y/n\n");
	scanf(" %c", &back);
	if (back == 'y')
		{system ("cls");
		main ();}
	else if (back == 'Y')
		{system ("cls");
		main ();}
	else
		exit ();

}



//Calculator Menu

void calculator (void)
{
	
	int calculator;

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try CHEMY's CHEMISTRY CALCULATOR ^_^           *\n");
	printf("\t**********************************************************************\n\n\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
	printf("\t\t@     IDEAL GAS LAW CALCULATOR     @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@            MAIN MENU             @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   1. PRESSURE                    @\n");
	printf("\t\t@   2. VOLUME                      @\n");
	printf("\t\t@   3. NUMBER OF MOL               @\n");
	printf("\t\t@   4. TEMPERATURE                 @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   0. BACK                        @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n\n");
	printf("Please choose your menu: ");
	scanf("%d", &calculator);
	
	while (calculator != 0)
	{
	switch (calculator)
	{
		case 1 : pressure ();
			break;
		case 2 : volume ();
			break;
		case 3 : mol ();
			break;
		case 4 : temperature ();
			break;
		case 0 : printf("Goodbye");
			break;
		default :printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
				 printf("Please choose your menu: ");
				 scanf("%d", &calculator);
			 break; 

	}
	}

	return;
}

//Calculator --- Pressure
void pressure (void)
{
	float volume;
	float mole;
	float temp;
	float pressure;
	char back;

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*                    IDEAL GAS LAW < PRESSURE >                      *\n");
	printf("\t**********************************************************************\n\n\n");
	printf("Please key in the volume: ");
	scanf("%f", &volume);
	printf("\nPlease key in the number of mol: ");
	scanf("%f", &mole);
	printf("\nPlease key in the temperature: ");
	scanf("%f", &temp);
	pressure = (mole * 0.082057 * temp) / volume;
	printf("\n\nPressure --> %.4f\n\n", pressure);
	printf("\n\nWould you like to go back to main menu? y/n\n");
	scanf(" %c", &back);
	if (back == 'y')
		{system ("cls");
		main ();}
	else if (back == 'Y')
		{system ("cls");
		main ();}
	else 
		exit ();
}

//Calculator --- Volume
void volume (void)
{ 
	float volume;
	float mole;
	float temp;
	float pressure;
	char back;

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*                    IDEAL GAS LAW < VOLUME >                        *\n");
	printf("\t**********************************************************************\n\n\n");
	printf("Please key in the pressure: ");
	scanf("%f", &pressure);
	printf("\nPlease key in the number of mol: ");
	scanf("%f", &mole);
	printf("\nPlease key in the temperature: ");
	scanf("%f", &temp);
	volume = (mole * 0.082057 * temp) / pressure;
	printf("\n\nVolume --> %.4f\n\n", volume);
	printf("\n\nWould you like to go back to main menu? y/n\n");
	scanf(" %c", &back);
	if (back == 'y')
		{system ("cls");
		main ();}
	else if (back == 'Y')
		{system ("cls");
		main ();}
	else 
		exit ();
}

//Calculator --- Number of Mol
void mol (void)
{ 
	float volume;
	float mole;
	float temp;
	float pressure;
	char back;

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*                 IDEAL GAS LAW < NUMBER OF MOL >                    *\n");
	printf("\t**********************************************************************\n\n\n");
	printf("Please key in the pressure: ");
	scanf("%f", &pressure);
	printf("\nPlease key in the volume: ");
	scanf("%f", &volume);
	printf("\nPlease key in the temperature: ");
	scanf("%f", &temp);
	mole = ( pressure * volume ) / ( 0.082057 * temp );
	printf("\n\nNumber of mol --> %.4f\n\n", mole);
	printf("\n\nWould you like to go back to main menu? y/n\n");
	scanf(" %c", &back);
	if (back == 'y')
		{system ("cls");
		main ();}
	else if (back == 'Y')
		{system ("cls");
		main ();}
	else 
		exit ();
}

//Calculator --- Temperature
void temperature (void)
{ 
	float volume;
	float mole;
	float temp;
	float pressure;
	char back;

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*                  IDEAL GAS LAW < TEMPERATURE >                     *\n");
	printf("\t**********************************************************************\n\n\n");
	printf("Please key in the pressure: ");
	scanf("%f", &pressure);
	printf("\nPlease key in the volume: ");
	scanf("%f", &volume);
	printf("\nPlease key in the number of mole: ");
	scanf("%f", &mole);
	temp = (pressure * volume) / (mole * 0.082057);
	printf("\n\nTemperature --> %.4f\n\n", temp);
	printf("\n\nWould you like to go back to main menu? y/n\n");
	scanf(" %c", &back);
	if (back == 'y')
		{system ("cls");
		main ();}
	else if (back == 'Y')
		{system ("cls");
		main ();}
	else 
		exit ();
}

//Optional Games
void optional (void)
{
	int games;

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try CHEMY's CHEMISTRY OPTIONAL GAMES!          *\n");
	printf("\t**********************************************************************\n\n\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
	printf("\t\t@     CHEMISTRY OPTIONAL GAMES     @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@            MAIN MENU             @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   1. HANGMAN                     @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@   0. BACK                        @\n");
	printf("\t\t@                                  @\n");
	printf("\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n\n");
	printf("Please choose your menu: ");
	scanf("%d", &games);
	
	while (games != 0 ) 
	{
	switch (games)
	{
	case 1 : 
		hangman ();
		break;

	case 0 : 
		printf("Goodbye");
		break;

	default : 
		printf("I'm sorry, but you have enter an invalid selection. Please try again.\n\n");	
		printf("Please choose your menu: ");
		scanf("%d", &games);
		break;
	}
	}
			  

	return 0;
}


//Optional Games --- Hangman
void hangman (void)
{
	int wrong =0;
	int answer;
	char back;
	

	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");

	//Question 1
	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
			
	 switch (wrong) 
	 {
     case 0 :
		printf("Amount of wrong answers: %d\n\n", wrong);
	    printf("\n");
	    printf("\n");
	    printf("\n");
	    printf("\n");
		printf("\n");
	    printf("\n");
		printf("____________\n\n");
        break;
	 }

   
	
	printf("Question 1\n");
	printf("What is the Atomic number of Potassium?\n");
	scanf("%d", &answer);

	if (answer != 19)
	{wrong++;}


	

	//Question 2
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	switch (wrong) 
	{
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
     break;


     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;
	 }

	printf("Question 2\n");
	printf("What is the Atomic number of Hydrogen?\n");
	scanf("%d", &answer);

	if (answer != 1)
	{wrong++;}


		
 	//Question 3
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	 switch (wrong) 
	 {
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
     break;

     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

	case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;
 }
	printf("Question 3\n");
	printf("What is the electron number of sodium?\n");
	scanf("%d", &answer);

	if (answer != 11)
	{wrong++;}

		
	
 	//Question 4
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	 switch (wrong) 
	 {
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
     break;

     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

	 
     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

	 }

	printf("Question 4\n");
	printf("What is the group number of silver?\n");
	scanf("%d", &answer);

	if (answer != 11)
	{wrong++;}


		
	
 	//Question 5
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	switch (wrong) 
	{
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
     break;


     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

	 case 4 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;
	
	}

 
	printf("Question 5\n");
	printf("What is the neutron number of chlorine?\n");
	scanf("%d", &answer);

	if (answer != 18)
	{wrong++;}


		
	 
 	//Question 6
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	switch (wrong) 
	{
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
     break;

     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

      case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 4 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;
	
	 case 5 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;
	}
 
	printf("Question 6\n");
	printf("What is the period number of sodium?\n");
	scanf("%d", &answer);

	if (answer != 3)
	{wrong++;}
	
		
	 
 	//Question 7
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	switch (wrong) 
	{
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
     break;

     
     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

      case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 4 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

     case 5 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
     break;

	 case 6 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   /\n");
      printf("__|_________\n\n");
	  break;
	}

	printf("Question 7\n");
	printf("What is the group number of oxygen?\n");
	scanf("%d", &answer);

	if (answer != 16)
	{wrong++;}

	 
	 
	 //Question 8
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	switch (wrong) 
	{
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
	  printf("Question 8\n");
	  printf("What is the proton number of Rubidium?\n");
	  scanf("%d", &answer);
 	if (answer != 37)
	{wrong++;}
	break;

	 case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
      printf("Question 8\n");
	  printf("What is the proton number of Rubidium?\n");
	  scanf("%d", &answer);
	if (answer != 37)
	{wrong++;}
	break;

      case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
      printf("Question 8\n");
	  printf("What is the proton number of Rubidium?\n");
	  scanf("%d", &answer);
 
	if (answer != 37)
	{wrong++;}
	break;

     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
      printf("Question 8\n");
	  printf("What is the proton number of Rubidium?\n");
	  scanf("%d", &answer);

	if (answer != 37)
	{wrong++;}
	break;

     case 4 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
    	 printf("Question 8\n");
	  printf("What is the proton number of Rubidium?\n");
	  scanf("%d", &answer);

	if (answer != 37)
	{wrong++;}
	break;

     case 5 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
 	  printf("Question 8\n");
	  printf("What is the proton number of Rubidium?\n");
	  scanf("%d", &answer);

	if (answer != 37)
	{wrong++;}
	break;

     case 6 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   /\n");
      printf("__|_________\n\n");
	  printf("Question 8\n");
	  printf("What is the proton number of Rubidium?\n");
	  scanf("%d", &answer);
	  if (answer != 37)
	  {wrong++;}
	  break;

	 default :
		 break;

	}

	

	//Question 9
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	
	 switch (wrong) {
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
     
	 printf("Question 9\n");
     printf("What is the group number of calcium?\n");
	 scanf("%d", &answer);

	if (answer != 2)
	{wrong++;}
	break;

     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
      printf("Question 9\n");
      printf("What is the group number of calcium?\n");
	  scanf("%d", &answer);

	if (answer != 2)
	{wrong++;}
	break;

     case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
      printf("Question 9\n");
	  printf("What is the group number of calcium?\n");
	  scanf("%d", &answer);

	if (answer != 2)
	{wrong++;}
	break;

     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
 	  printf("Question 9\n");
	  printf("What is the group number of calcium?\n");
	  scanf("%d", &answer);

	if (answer != 2)
	{wrong++;}
	break;

     case 4 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("Question 9\n");
	  printf("What is the group number of calcium?\n");
	  scanf("%d", &answer);

	if (answer != 2)
	{wrong++;}
	break;

     case 5 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("Question 9\n");
	  printf("What is the group number of calcium?\n");
	  scanf("%d", &answer);

	if (answer != 2)
	{wrong++;}
	break;

     case 6 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   /\n");
      printf("__|_________\n\n");
	  printf("Question 9\n");
	  printf("What is the group number of calcium?\n");
	  scanf("%d", &answer);

	if (answer != 2)
	{wrong++;}
	break;
	 
	 default :
		 break;
	 
 }
	


	//Question 10
	system ("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");


	printf("Answer as many question correctly as possible or the man will be hanged!!\n\n");
	
	switch (wrong) {
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
      printf("Question 10\n");
	  printf("What is the proton number of carbon?\n");
	  scanf("%d", &answer);

	 if (answer != 6)
	 {wrong++;}
	 break;


     case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("Question 10\n");
	  printf("What is the proton number of carbon?\n");
	  scanf("%d", &answer);
	
	if (answer != 6)
	{wrong++;}
	break;
   
     case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
  	  printf("Question 10\n");
	  printf("What is the proton number of carbon?\n");
	  scanf("%d", &answer);

	if (answer != 6)
	{wrong++;}
	break;


     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("Question 10\n");
	  printf("What is the proton number of carbon?\n");
	  scanf("%d", &answer);

	if (answer != 6)
	{wrong++;}
	break;


     case 4 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("Question 10\n");
	  printf("What is the proton number of carbon?\n");
	  scanf("%d", &answer);

	if (answer != 6)
	{wrong++;}
	break;
	

     case 5 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
 	  printf("Question 10\n");
	  printf("What is the proton number of carbon?\n");
	  scanf("%d", &answer);

	if (answer != 6)
	{wrong++;}
	break;
	
     case 6 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   /\n");
      printf("__|_________\n\n");
	  printf("Question 10\n");
	  printf("What is the proton number of carbon?\n");
	  scanf("%d", &answer);

	if (answer != 6)
	{wrong++;}
	break;
	
	 default:
		 break;

 }

	
	system("cls");
	printf("\t**********************************************************************\n");
	printf("\t*          Welcome to try Hangman optional games!                    *\n");
	printf("\t**********************************************************************\n\n\n");
	printf("Result:\n\n");
			switch (wrong) {
     case 0 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("\n");
      printf("____________\n\n");
	  printf("CONGRATULATIONS, THE MAN SURVIVE!");
     break;

      case 1 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("CONGRATULATIONS, THE MAN SURVIVE!");
     break;

      case 2 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |\n");
      printf("  |\n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("CONGRATULATIONS, THE MAN SURVIVE!");
     break;

     case 3 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |    |\n");
      printf("  |    |\n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("CONGRATULATIONS, THE MAN SURVIVE!");
     break;

     case 4 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("CONGRATULATIONS, THE MAN SURVIVE!");
     break;

     case 5 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |\n");
      printf("__|_________\n\n");
	  printf("CONGRATULATIONS, THE MAN SURVIVE!");
     break;

     case 6 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   /\n");
      printf("__|_________\n\n");
	  printf("CONGRATULATIONS, THE MAN SURVIVE!");
     break;

     case 7 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   / \\\n");
      printf("__|_________\n\n");
	  printf("GMAE OVER");
     break;

	  case 8 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   / \\\n");
      printf("__|_________\n\n");
	  printf("GMAE OVER");
     break;

	 case 9 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   / \\\n");
      printf("__|_________\n\n");
	  printf("GMAE OVER");
     break;

 	 case 10 :
      printf("Amount of wrong answers: %d\n\n", wrong);
      printf("  _______\n");
      printf("  |/   | \n");
      printf("  |    O \n");
      printf("  |   \\|/\n");
      printf("  |    | \n");
      printf("  |   / \\\n");
      printf("__|_________\n\n");
	  printf("GMAE OVER");
     break;

	
}

	
	printf("\n\nWould you like to go back to main menu? y/n\n");
	scanf(" %c", &back);
	if (back == 'y')
		{system ("cls");
		main ();}
	else if (back == 'Y')
		{system ("cls");
		main ();}
	else
		exit ();
}

[ddanbe]

Also, initialize your menu variable(eg on line 45) to a value other than 4.

[zeroliken]

how about you initialize the value of menu to zero @ line 23

int menu = 0;

[kahheng93]

awesome,thanks both of you,but is there anyway to change it so that when a user input abc, the program wont crash?

[ddanbe]

Check out the Isdigit function.

[kahheng93]

k thanks alot