/* Program to read an array from a file */

#include <stdio.h>
#define  SIZE 50    /* maximum array size */

int  read_file(const char filename[], double list[]);
void print_array(const double list[], int n);

int main() {
  double array[SIZE];
  int count = read_file("scores.txt", array);
  printf("Count of array elements = %d\n", count);
  print_array(array, count);
  return 0;     
}

int read_file(const char filename[], double list[]) {
  int count = 0;
  FILE *infile = fopen(filename, "r");
  if (infile == NULL) {  /* failed to open file */
    printf("Cannot open file %s\n", filename);
    return 0;                  /* exit function */
  } 
  int status = fscanf(infile, "%lf", &list[count]);  
  while (status == 1) {      /* successful read */
    count++;                   /* count element */
    if (count == SIZE) break;     /* exit while */
    status = fscanf(infile, "%lf", &list[count]);  
  }
  fclose(infile);
  return count;      /* number of elements read */
}                

void print_array(const double list[], int n) {
  int i;

  for (i=0; i<n; i++)
    printf("Element[%d] = %.2f\n", i, list[i]);
}