count the number of words starting with vowel

/*  Input ::   I am Fine.

     Output :: 2         */

#include<iostream.h>

#include<conio.h>

#include<string.h>

void main()

{

int vc=0;

char sen[25], ch;

cout<< "\n Type A Sentance:";

cin.getline(sen,25);

for(int i =0; sen[i]!='\0'; i++)

{

if(sen[i]==' ')

{

while(sen[i] = =  ' ')  /* remove multiple space */

i++;

ch = toupper(sen[i]);

switch(ch)

{

case 'A':

case 'E':

case 'O':

case 'I':

case 'U':

                  vc++;

}

 }

}

cout<<"\n  The total number of words starting with a vowel is : "<< vc;

getch();

}