Monk Takes a Walk

#include<stdio.h>
#include <string.h>
#define pf printf
#define sf scanf
int main()
{ 	
	int t;
	sf("%d",&t);
	while(t--)
	{int c=0,i;
	char s[1000000];
	sf("%s",s);
	int n = strlen(s);
	for(i=0;i<n;i++)
	{
		switch(s[i])
		{
			case 'a':
			case 'e':
			case 'i':
			case 'o':
			case 'u':
			case 'A':
			case 'E':
			case 'I':
			case 'O':
			case 'U': c++;
		}
 
	}
	
	pf("%d\n",c);
 
 
 
 
 
 
 
}
 
}