CS256 - Principles of Structured Design Fall 2021

Displaying ./code/cs256su21code/midtermSol/p4.c

/*
4. 
   Consider the following array declaration:

   int numbers[64];

   Assume that the array has been filled with integers. Give me code that sets up a loop that will calculate the 
   average of all the values in that array, then output the average once the loop finishes.
   
   You must declare all variables (other than the already-declared array) used in the loop, initialize variables 
   when necessary. You can treat the average as an integer number.

   Hint: If you don't remember, you get the average by dividing the sum of all the numbers by the number of elements.

*/

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


int main(){

   int numbers[64];

   //generating random numbers to populate the array
   for(int i = 0; i < 64; i++){
      numbers[i] = rand() % 100; //generating pseudorandom numbers between 0 and 99
   }

   int sum = 0, avg;

   for(int i = 0; i < 64; i++){
      sum = sum + numbers[i];
   }

   avg = sum / 64;

   printf("average value = %d\n", avg);

   return 0;
}