Help with result only...

#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();
}