C Programming Tutorial - 48 - Creating an Expandable Program

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

int main()
{
    int i, howMany;
    int total = 0;
    float average = 0.0;
    int * pointsArray;

    printf("How many numbers do you want to use?\n");
    scanf(" %d", &howMany);

    pointsArray = (int *) malloc(howMany * sizeof(int));

    printf("Enter them hoss!\n");

    for(i=0; i<howMany; i++){
        scanf(" %d", &pointsArray[i]);
        total += pointsArray[i];
    }

    average = (float)total / (float)howMany;
    printf("Average is %f", average);

    free(pointsArray);

    return 0;
}