/* Program to count the number of vowels in a given string */
/* Problem 24 */

#include <stdio.h>
#include <conio.h>
#include <string.h>

main()
{
char str[80];
int i,len,count;
clrscr();
printf("Please enter a string : ");
gets(str);
count = 0;
len = strlen(str);
for (i = 0; i < len; i++)
{
	if ((str[i] == 'a') || (str[i] == 'e') || (str[i] == 'i'))
		count++;
	else
		if ((str[i] == 'o') || (str[i] == 'u'))
			count++;
}
printf("\nEntered string contains %d vowels",count);
printf("\n\nPress any key to exit...");
getch();
}