i'm having a problem on running the output after putting the input.. the output doesn't show after i put the variables and i don't know how to set the code .. so if you guys could help me with this, that would be grateful..

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

int read_temps (float temps[]);
int hot_days (int numOfTemp, float temps[]);
int printf_temps (int numOfTemp, float temps[], int numOfHotDays);

int main (void) {
int index = 0;
float tempVal;
float temps[31];
int numOfTemp, numOfHotDays;

do {
    printf ("Enter the temperature:");
    scanf ("%f", &tempVal);
    if (tempVal!=-500.0) {
        temps[index] = tempVal;
        index++;
    }
} while (tempVal != -500.0);

return ;

{
    int i;
    int count = 0;
    for (i = 0; i < numOfTemp; i++) {
        if (temps[i] > 32.0)
            count++;
    }
    return count;
}

{
    float sum = 0.0;
    int i;
    printf ("\nInput Temperatures:");
    printf ("\n-------------------------");

    for (i = 0;i < numOfTemp; i++) {
        printf ("\nDay %d : %.2fF", i+1, temps[i]);
        sum = sum + temps[i];
    }
    printf ("\nNumber of Hot Days : %d", numOfHotDays);
    printf ("\nAverage Temperature: %.2f", sum/numOfTemp);
}

{
    clrscr ();
    numOfTemp = read_temps (temps);
    numOfHotDays = hot_days (numOfTemp, temps);
    clrscr ();
    printf_temps (numOfTemp, temps, numOfHotDays);
    getch ();
}
}