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switch and things

tochivelez0 (13)
help regarding our assignment

the trick is input a number -999 to 999

we cant use == ,

i cant simply make this work, what i have in mind is separate hundreds and tens, one and use it for switch

thank you!

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#include <stdio.h>

int number, hundred, ten, tenmod, one; 
			
int main(void){
	
	puts("please enter a number from -999 to 999:");
	scanf("%d", &number);
	
	hundred = number / 100;
	ten = number % 100;
	tenmod = ten / 10;
	one = ten % 10;
	
	printf("%d%d%d", hundred, ten, one);
	
		switch(hundred){
                   case 9 : printf("\nNine Hundred\n");
                   break;
                   case 8 : printf("\nEight Hundred\n");
                   break;
                   case '7' : printf("\nSeven Hundred\n");
                   break;
                   case '6' : printf("\nSix Hundred\n");
                   break;
                   case '5' : printf("\nFive Hundred\n");
                   break;
                   case '4' : printf("\nFour Hundred\n");
                   break;
                   case '3' : printf("\nThree Hundred\n");
                   break;
                   case '2' : printf("\nTwo Hundred\n");
                   break;
                   case '1' : printf("\nOne Hundred\n");
                   break;
                   case '-9' : printf("\nNegativeNine Hundred\n");
                   break;
                   case '-8' : printf("\nNegativeEight Hundred\n");
                   break;
                   case '-7' : printf("\nNegative Seven Hundred\n");
                   break;
                   case '-6' : printf("\nNegative Six Hundred\n");
                   break;
                   case '-5' : printf("\nNegativeFive Hundred\n");
                   break;
                   case '-4' : printf("\nNegative Four Hundred\n");
                   break;
                   case '-3' : printf("\nNegative Three Hundred\n");
                   break;
                   case '-2' : printf("\nNegative Two Hundred\n");
                   break;
                   case '-1' : printf("\nNegative One Hundred\n");
                   break;
				   }  
            
		switch(tenmod){
			 
                   case '9' : printf("\nNinety\n");
                   break;
                   case '8' : printf("\nEighty\n");
                   break;
                   case '7' : printf("\nSeventy\n");
                   break;
                   case '6' : printf("\nSixty\n");
                   break;
                   case '5' : printf("\nFifty\n");
                   break;
                   case '4' : printf("\nForty\n");
                   break;
                   case '3' : printf("\nThirty\n");
                   break;
                   case '2' : printf("\nTwenty\n");
                   break;
                   case '11' : printf("\nEleven\n");
                   break;
                   case '12' : printf("\nTwelve\n");
                   break;
                   case '13' : printf("\nThrirteen\n");
                   break;
                   case '14' : printf("\nFourtheen\n");
                   break;
                   case '15' : printf("\nFifteen\n");
                   break;
                   case '16' : printf("\nSixteen\n");
                   break;
                   case '17' : printf("\nSeventeen\n");
                   break;
                   case '18' : printf("\nEighteen\n");
                   break;
                   case '19' : printf("\nNineteen\n");
				   } 
			
			switch(one){
			 
                   case '9' : printf("\nNine\n");
                   break;
                   case '8' : printf("\nEight\n");
                   break;
                   case '7' : printf("\nSeven\n");
                   break;
                   case '6' : printf("\nSix\n");
                   break;
                   case '5' : printf("\nFive\n");
                   break;
                   case '4' : printf("\nFour\n");
                   break;
                   case '3' : printf("\nThree\n");
                   break;
                   case '2' : printf("\nTwo\n");
                   break;
				   } 
	*/
	system("pause");
	return 0;
}
Renthalkx97 (152)
Missing header file: Windows.h for "system" (BTW it's a bad habit to get into)

You have quotes on some cases, but not all. Why? You don't even need to put quotes on them actually.

Line 15 you pass ten instead of tenmod as a parameter, thus the incorrect output there.

Your ten's and one's place switch statement, you skip both case 1. Why? How will you print 10? Or 1? You gave the hundred's place switch statement a case 1.
Last edited on
tochivelez0 (13)
i want to separate the elevens to nineteen,, sorry i might just missed typing it

from ex. fifty one, etc.
Last edited on
Renthalkx97 (152)
You see, that's where it gets complicated. All of the "teen" numbers are made up of two places: a tens and ones place. You're going to have to check whether the tens place is equal to one or not to decide when you add the "teen" suffix to the number. I.E. 127 doesn't get the suffix, but 117 will.
tochivelez0 (13)
yeah thats the problem,
MiiNiPaa (8886)
Missing header file: Windows.h for "system"
Since when system had moved from <cstdlib> to windows.h?
tochivelez0 (13)
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#include <stdio.h>

 //enter number , -999 to 999
			// no ==
			//BCS111, VELEZ, LE#3 , decamora.lawrence@ciit-ph.com
			
int main(void){
	
	int number, hundred, tens, tenss, tenmod, one, x;
	
	puts("please enter a number from -999 to 999:");
	scanf("%d", &number);
	
	hundred = number / 100;
 
	
		switch(hundred){
                   case 9 : printf("\nNine Hundred");
                   break;
                   case 8 : printf("\nEight Hundred");
                   break;
                   case 7 : printf("\nSeven Hundred");
                   break;
                   case 6 : printf("\nSix Hundred");
                   break;
                   case 5 : printf("\nFive Hundred");
                   break;
                   case 4 : printf("\nFour Hundred");
                   break;
                   case 3 : printf("\nThree Hundred");
                   break;
                   case 2 : printf("\nTwo Hundred");
                   break;
                   case 1 : printf("\nOne Hundred");
                   break;
                   case -9 : printf("\nNegative Nine Hundred");
                   break;
                   case -8 : printf("\nNegative Eight Hundred");
                   break;
                   case -7 : printf("\nNegative Seven Hundred");
                   break;
                   case -6 : printf("\nNegative Six Hundred");
                   break;
                   case -5 : printf("\nNegativeFive Hundred");
                   break;
                   case -4 : printf("\nNegative Four Hundred");
                   break;
                   case -3 : printf("\nNegative Three Hundred");
                   break;
                   case -2 : printf("\nNegative Two Hundred");
                   break;
                   case -1 : printf("\nNegative One Hundred");
                   break;
				   }  
				   
             // if ( x < 10 && x > 20){    
                      	
                   x = number % 100;
				  
               if ( x > 10 && x < 20){   
                 
                   switch(x){ 
                   case 11 : printf(" Eleven");
                   break;
                   case 12 : printf(" Twelve");
                   break;
                   case 13 : printf(" Thirteen");
                   break;
                   case 14 : printf(" Fourteen");
                   break;
                   case 15 : printf(" Fifteen");
                   break;
                   case 16 : printf(" Sixteen");
                   break;
                   case 17 : printf(" Seventeen");
                   break;
                   case 18 : printf(" Eighteen");
                   break;
                   case 19 : printf(" Nineteen");
                   break;
                   } 
                   }
               else if (tens > -10 && tens < 10){ 
                   
                   
                   tens = (number % 100) / 10;
 
                   switch(tens){
			 	   case -9 :
                   case 9 : printf(" Ninety ");
                   break;
                   case -8 :
                   case 8 : printf(" Eighty ");
                   break;
                   case -7 :
                   case 7 : printf(" Seventy ");
                   break;
                   case -6 :
                   case 6 : printf(" Sixty ");
                   break;
                   case -5 :
                   case 5 : printf(" Fifty ");
                   break;
                   case -4 :
                   case 4 : printf(" Forty ");
                   break;
                   case -3 :
                   case 3 : printf(" Thirty ");
                   break;
                   case -2 :
                   case 2 : printf(" Twenty ");
                   break;
                   case -1 :
                   case 1 : printf(" Ten ");
                   break;               
				   } 
} 
//if (one > -10 && one <10) {

                            one = x % 10;             
       
		                	switch(one){
                            case -9 :
                            case 9 : printf(" Nine\n");
                            break;
                            case -8 :
                            case 8 : printf(" Eight\n");
                            break;
                            case -7 :
                            case 7 : printf(" Seven\n");
                            break;
                            case -6 :
                            case 6 : printf(" Six\n");
                            break;
                            case -5 :
                            case 5 : printf(" Five\n");
                            break;
                            case -4 :
                            case 4 : printf(" Four\n");
                            break;
                            case -3 :
                            case 3 : printf(" Three\n");
                            break;
                            case -2 :
                            case 2 : printf(" Two\n");
                            break;
                            case -1 :
                            case 1 : printf(" One\n");
                            break;
				            }   
                           // }
       
                
	system("pause");
	return 0;
}


need help what to do to correct this?

it show 911 = nine hundred eleven one, other numbers works flawlessly, how can i say to stop once it selected eleven to nineteen
rich1 (106)
In these special cases, try using return instead of break
tochivelez0 (13)
where would i put the break? it closes automatically if i change the breaks to return in line 63
rich1 (106)
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#include <stdio.h>

void read_number(int n)
{
    int number = n, hundred, tens, tenss, tenmod, one, x;

    hundred = number / 100;

    switch(hundred) {
    case 9 :
        printf("\nNine Hundred");
        break;
    case 8 :
        printf("\nEight Hundred");
        break;
    case 7 :
        printf("\nSeven Hundred");
        break;
    case 6 :
        printf("\nSix Hundred");
        break;
    case 5 :
        printf("\nFive Hundred");
        break;
    case 4 :
        printf("\nFour Hundred");
        break;
    case 3 :
        printf("\nThree Hundred");
        break;
    case 2 :
        printf("\nTwo Hundred");
        break;
    case 1 :
        printf("\nOne Hundred");
        break;
    case -9 :
        printf("\nNegative Nine Hundred");
        break;
    case -8 :
        printf("\nNegative Eight Hundred");
        break;
    case -7 :
        printf("\nNegative Seven Hundred");
        break;
    case -6 :
        printf("\nNegative Six Hundred");
        break;
    case -5 :
        printf("\nNegativeFive Hundred");
        break;
    case -4 :
        printf("\nNegative Four Hundred");
        break;
    case -3 :
        printf("\nNegative Three Hundred");
        break;
    case -2 :
        printf("\nNegative Two Hundred");
        break;
    case -1 :
        printf("\nNegative One Hundred");
        break;
    }

    x = number % 100;

    if ( x > 10 && x < 20) {

        switch(x) {
        case 11 :
            printf(" Eleven");
            return; //break;
        case 12 :
            printf(" Twelve");
            return; //break;
        case 13 :
            printf(" Thirteen");
            return; //break;
        case 14 :
            printf(" Fourteen");
            return; //break;
        case 15 :
            printf(" Fifteen");
            return; //break;
        case 16 :
            printf(" Sixteen");
            return; //break;
        case 17 :
            printf(" Seventeen");
            return; //break;
        case 18 :
            printf(" Eighteen");
            return; //break;
        case 19 :
            printf(" Nineteen");
            return; //break;
        }
    } else if (tens > -10 && tens < 10) {


        tens = (number % 100) / 10;

        switch(tens) {
        case -9 :
        case 9 :
            printf(" Ninety ");
            break;
        case -8 :
        case 8 :
            printf(" Eighty ");
            break;
        case -7 :
        case 7 :
            printf(" Seventy ");
            break;
        case -6 :
        case 6 :
            printf(" Sixty ");
            break;
        case -5 :
        case 5 :
            printf(" Fifty ");
            break;
        case -4 :
        case 4 :
            printf(" Forty ");
            break;
        case -3 :
        case 3 :
            printf(" Thirty ");
            break;
        case -2 :
        case 2 :
            printf(" Twenty ");
            break;
        case -1 :
        case 1 :
            printf(" Ten ");
            break;
        }
    }

    one = x % 10;

    switch(one) {
    case -9 :
    case 9 :
        printf(" Nine\n");
        break;
    case -8 :
    case 8 :
        printf(" Eight\n");
        break;
    case -7 :
    case 7 :
        printf(" Seven\n");
        break;
    case -6 :
    case 6 :
        printf(" Six\n");
        break;
    case -5 :
    case 5 :
        printf(" Five\n");
        break;
    case -4 :
    case 4 :
        printf(" Four\n");
        break;
    case -3 :
    case 3 :
        printf(" Three\n");
        break;
    case -2 :
    case 2 :
        printf(" Two\n");
        break;
    case -1 :
    case 1 :
        printf(" One\n");
        break;
    }
}

int main(void)
{
    for(int i = 0; i <= 100; ++i) {
        read_number(i);
    }

    return 0;
}
tochivelez0 (13)
thanks man! what does putting return do there? it returns it to the top or stops it? incase i'm asked what about it?
Ericool (522)
Look for c++ Interpreter Design Pattern , it could help.
Renthalkx97 (152)

Missing header file: Windows.h for "system"
Since when system had moved from <cstdlib> to windows.h?


Including window.h lets you access system. Try it out.
MiiNiPaa (8886)
Including window.h lets you access system
It lets you to do this on your concrete version of windows.h. Correct header to include is stdlib.h/cstdlib. windows.h might include one of those, this is why name system becomes visible for you.
Still windows.h is not reqiured to do so, and might stop behaving same way later/earlier. Name system() does appears anywhere in official documentation for windows.h, therefore assuming that it will bring it is a bad idea.
C++ stanard says that you should include <cstdio> for system, period. Relying on side effect of implementation is never appropriate.
Last edited on
Renthalkx97 (152)
Thank you for the clarification.
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