int count_vowels(int n, char a[])
{
    char vowels[] = "aeiouAEIOU";
    int i, j;
        
    n = 0;
    
    for(i = 0; vowels[i] != NULL; i++)
        for (j = 0; vowels[j] != NULL; j++)
            if(vowels[j] == a[i])
            {
                n++;
                break;
            }
    
    return n;
}

#include <string.h>
#include <stdio.h>
#define MAX 225

int count_char(int n, char a[]);
int count_words(int n, char a[]);
int count_vowels(int n, char a[]);

int main(void)
{
    char line [MAX];
    int a, b, c;
    
    printf("Input a line of text: ");
    gets(line);
    
    a = count_char(a, line);
    b = count_words(b, line);
    c = count_vowels(c, line);
    
    printf("\nThere are %d characters, %d words, and %d vowels in the line.", a, b, c);
    
    return 0;
}

int count_char(int n, char a[])
{
    n= strlen(a);        
    return n;
}

int count_words(int n, char a[])
{    
    char* token;
    
    n=0;
    token = strtok(a, " ");
    
    while(token != NULL)
    {
        n++;
        token = strtok(NULL, " ");
    }
    
    return n;
}

int count_vowels(int n, char a[])
{
    char vowels[] = "aeiouAEIOU";
    int i, j;
        
    n = 0;
    
    for(i = 0; vowels[i] != NULL; i++)
        for (j = 0; vowels[j] != NULL; j++)
            if(vowels[j] == a[i])
            {
                n++;
                break;
            }
    
    return n;
}

int count_vowels(int n, char a[])
{
    char vowels[] = "aeiouAEIOU";
    int i, j;        
    n = 0;
    
    for(i = 0; a[i] != '\0'; i++){
        for (j = 0; vowels[j] != '\0'; j++){
            if(a[i] == vowels[j])
            {
                n++;
                break;
            }
        }
    }
    
    return n;
}

int count_words(int n, char a[])
{    
    
    int i=0;
    n=0;
    
    
    
    while(a[i] != '\0') {
        if(a[i]==' ')
            n++;
        i++;        
    }

    return n+1;

    //token = strtok(a, " ");//char* token;//token = strtok(NULL, " ");
}