How should I tackle this problem and what do I need to know

Develop the program, through the use of signatures, definitions and function calls, which reads from the keyboard a line of characters character-by-character ending with '\n' (end-of-line) and writes on the terminal a graphic of horizontal asterisk bars with the occurrences of the read vowels, with the following presentation:Attachment 16435

Code:

---

typedef int Vowel[5];
/**
* Reads a string of characters from the keyboard and fills array v with
* the occurrence of each vowel. Index 0 is A, index 1 is E, ..o
* index 4 is U
*/
void getVowels( Vowel v );
/**
* returns the largest value contained in array v of occurrence of each
* vowel
*/
int majorOcurrence( Vowel v );
/**
* draws the graph with the presentation suggested in the figure.
*/
graphic void( Vowel v );
int main( void ){
Vowel v={0,0,0,0,0};
readVowels( v );
graphic(v); //this function calls the greatestOcurrence(Vowel v):
return 0;
}

---

I have little to no experience building graphs and my teacher doesn't really gives a intel on what to do. We use the pg/pglib.h to make graphs another think He didnt enter in detail on how to do like how can I write the letters bellow the graph? How to make the graph? my questions are mostly graph related.
Can you please help me?

I have no idea what pg/pglib.h is, but if it creates an image file or some kind of graphical output in a separate window then that is not what this program is asking for. Instead you are meant to create a "graphical" output on the terminal, so you write the letters just by printing letters.

Code:

---

Letras
 |
 |
 |        *
 |        *
 |        *                *
 |        *    *          *
 |  *    *    *    *    *
 |  *    *    *    *    *
 +-----|-----|-----|-----|------>
    A    E    I    O    U

---

Quote:

---

Originally Posted by john.c

I have no idea what pg/pglib.h is, but if it creates an image file or some kind of graphical output in a separate window then that is not what this program is asking for. Instead you are meant to create a "graphical" output on the terminal, so you write the letters just by printing letters.

Code:

---

Letras
 |
 |
 |        *
 |        *
 |        *                *
 |        *    *          *
 |  *    *    *    *    *
 |  *    *    *    *    *
 +-----|-----|-----|-----|------>
    A    E    I    O    U

---

---

Then How can I go about making this graph without a graph library, the letters seem to grouped bellow the graph in an specific manner, how can I go abut doing that?

You're not thinking.
The last two lines are simply printed like this:

Code:

---

printf(" +-----|-----|-----|-----|------>\n");
printf("    A    E    I    O    U\n");

---