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Find number of vowels in a string.

#include<stdio.h>
int main()
{
char str[25];
printf("Enter string.\n");
gets(str);
int i = 0;
int count = 0;
while(str[i] != '\0')
{
if(str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u')
{
count++;
}
i++;
}
printf("\nNo. of vowels is %d",count);
return 0;

}

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