Thread: Need help with arrays. Can't seem to find my problem in the code.

The problem is---
Must use arrays - Ask the user for ratings for a professor in a loop. The ratings can go from 0 to 100. Allow the user to keep entering ratings, until they type in -1. Store these ratings in an appropriate array.
Once the user is done entering values, print how how many of each rating a professor has. Show the highest ratings first, and do not show ratings that weren't given. Also print out the total number of ratings and the average.
Example:
Enter rating (-1 to quit): 90
Enter rating (-1 to quit): 89
Enter rating (-1 to quit): 88
Enter rating (-1 to quit): -100
Error..ratings must be between 0 and 100.
Enter rating (-1 to quit): 101
Error..ratings must be between 0 and 100.
Enter rating (-1 to quit): 88
Enter rating (-1 to quit): -1
There were 4 ratings entered
1 rating(s) of 90
1 rating(s) of 89
2 rating(s) of 88
The average of the ratings were: 88.75
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My code is
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Code:

#include <stdio.h>
#include <stdlib.h>


int main()
{
    int rating[100]; // size of 100
    int freq[100]; // size of 100
    int t; // total number of rating
    int size;
    int i = 0, j = 0; // two counters
    int count = 0;
    const int Quit = -1;
    double average;
    double total;


    /* Input elements in rating */
    printf("Enter rating (-1 to quit): ", i + 1);
    scanf_s("%d", &rating[i]);


    for (i = 0; i<size; i++)
    {
        scanf("%d", &rating[i]);


        /* Initially initialize frequencies to -1 */
        freq[i] = -1;
    }
    for (i = 0; i<size; i++)
    {
        count = 1;
        for (j = i + 1; j<size; j++)
        {
            /* If duplicate rating is found */
            if (rating[i] == rating[j])
            {
                count++;


                /* Make sure not to count frequency of same rating again */
                freq[j] = 0;
            }
        }


        /* If frequency of current rating is not counted */
        if (freq[i] != 0)
        {
            freq[i] = count;
        }
    }


    /*
    * Print frequency of each rating
    */
    printf("\nThere were %d ratings entered\n", total amount of ratings);
    for (i = 0; i<size; i++)
    {
        if (freq[i] != 0)
        {
            printf("%d rating(s) of %d \n", freq[i], rating[i]);
        }
    }


    return 0;
}