Nested if loop in for loop - c

Question

this code just generates a random number to be taken in as the temperature and records it every hour. I am having issues with my for loop on getting the max and min values of my code. It looks correct to me and similar to all the examples I have seen but it's giving me the wrong output.
Thank you
#include <stdio.h>
#include <stdlib.h>
void GetValue(int[], int x);
#define array_size 25
int main() {
int x, max, min, temperature[25];
float sum;
float average;
int array[array_size];
printf("Temperature Conditions on October 9, 2015:\n");
printf("Time of Day \t Temperature in Degrees F\n");
for (x = 0; x < 25; x++) {
//if statements to get min and max
GetValue(temperature, x);
if (temperature[x] > max) {
max = temperature[x];
}
if (temperature[x] < min) {
min = temperature[x];
}
printf("%d \t \t \t %d\n", x,temperature[x]);
}
//prints statements
printf("\nMaximum Temperature for the day: %d Degrees F\nMinimum Temperature for the day: %d Degrees F\n", temperature[12],max, min);
//adds up all temps
sum=0;
for (x=0;x<25;x++){
sum=(sum+temperature[x]);
}
//prints and creates average
average=sum/25;
printf("Average Temperature for the day: %.2f Degrees F\n",average);
return 0;
}
//gets values and puts them into array
void GetValue(int value[], int x) {
value[x] = (rand()%(100-60+1))+60;
}

Answer 1

You invoked undefine behavior by using values of uninitialized variables having automatic storage duration, which is indeterminate.
Use values of variables only after assigning some value to them.
Format your code properly.
Match format specifier and data for printf().
Avoid using magic number. Use the #defined number for number of elements in this case.
Corrected code:
#include <stdio.h>
#include <stdlib.h>
void GetValue(int[], int x);
#define array_size 25
int main(void) {
int x, max = 0, min = 0, temperature[array_size];
float sum;
float average;
printf("Temperature Conditions on October 9, 2015:\n");
printf("Time of Day \t Temperature in Degrees F\n");
for (x = 0; x < array_size; x++) {
//if statements to get min and max
GetValue(temperature, x);
// in the first iteration, there won't be a valid number in max and min
if (x == 0 || temperature[x] > max) {
max = temperature[x];
}
if (x == 0 || temperature[x] < min) {
min = temperature[x];
}
printf("%d \t \t \t %d\n", x, temperature[x]);
}
//prints statements
printf("\nMaximum Temperature for the day: %d Degrees F\nMinimum Temperature for the day: %d Degrees F\n", max, min);
//adds up all temps
sum=0;
for (x=0;x<array_size;x++){
sum=(sum+temperature[x]);
}
//prints and creates average
average=sum/array_size;
printf("Average Temperature for the day: %.2f Degrees F\n", average);
return 0;
}
//gets values and puts them into array
void GetValue(int value[], int x) {
value[x] = (rand()%(100-60+1))+60;
}