Help with result only...

I did this program, he picks up a word and shows only the vowels,
You input "house" hi show "oue"
I want the result like this "o-u-e"

Code:

#include<conio.h>
#include<stdio.h>
#include<string.h>
int main()
{
    
    char str[30],vogal[]={'a','e','i','o','u','A','E','I','O','U'} ,k[40];
    char a;
    int cont=0,i,qtd,aux=0;
 
     printf(" Digite uma palavra: ");
     fflush(stdin);
     scanf("%s",str); 
     qtd=strlen(str);     
     
 for(cont=0;cont<qtd;cont++)
   for(i=0;i<10;i++) 
    if(str[cont]==vogal[i])
      k[aux++]=str[cont];
      k[++aux]='0';     
           
 k[aux-1]=NULL;
 printf(" \n        %s ",k);
 getch();
}

You could add a - after each character you write. Then when you are done remove the last - by setting the final character to \0

Code:

 k[aux-1]=NULL;

That is almost certainly not what you wanted to do. NULL is used to indicate zero in a pointer, not end of string. Either 0 or '\0' is what you want.

--
Mats

Originally Posted by matsp

Code:

 k[aux-1]=NULL;

That is almost certainly not what you wanted to do. NULL is used to indicate zero in a pointer, not end of string. Either 0 or '\0' is what you want.

--
Mats

Thanks for the tip, but i still need the result like "a-e-i-o-u"

Originally Posted by Ervilha

Thanks for the tip, but i still need the result like "a-e-i-o-u"

Yes, I understand.

Code:

      k[aux++]=str[cont];
      k[++aux]='0';

I take it you don't understand the difference between ++aux and aux++? One increments after the "use", the other before the "use". Also, is that '0' supposed to be '-' or '\0'. You should probably stick to EITHER ++aux or aux++ in both lines.

Code:

fflush(stdin);

This is undefined, and should not be used [it may crash on a different system - fflush is only defined for output files in the C standard]. See the FAQ for "How do I clear the input buffer" if you need to do this in your code - but as far as I can tell, you actually want fflush(stdout) where you have it - if you need any fflush at all, that is.

--
Mats

--
Mats

An appropriate placed code, below, should solve your issue. I do believe matsp eluded to this as well.

[code

k[aux++] = '-';

[/code]