Untitled

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


#define FILENAME "enterprise.txt"

char field[111] = "";

struct object {
  char letter;
  int x;
  int y;
};

struct object objects[100];

int count = 0;

int main() {
  FILE * fin = 0;

  memset(objects,0,sizeof(objects));

  fin = fopen(FILENAME, "r");
  if (!fin) {
    fprintf(stderr, "Could not open %s\n", FILENAME);
    exit(-1);
  }

  int res = fread(field, 110,1,fin);
  if (!res) {
    fprintf(stderr, "Could not read in the field\n");
    exit(-2);
  }

  fclose(fin);

  field[110] = 0;

  char * f1 = field;
  int pos = 0;

  size_t off = 0;
  while (1) {
    off = strspn(f1, ".\n");
    pos = off+pos+1;
    if (*(f1+off) == 0)
      break;
    printf("%c %d,%d\n", *(f1+off), pos/11,pos%11);

    objects[count].letter = *(f1+off);
    objects[count].y = pos/11;
    objects[count].x = pos%11;
    count++;

    f1 += off+1;
  }
  int i,j;
  printf("Count: %d\n", count);
  for (i = 0; i < count; i++) {
    for (j = i; j < count; j++) {
      int x1=objects[i].x,
          x2=objects[j].x,
          y1=objects[i].y,
          y2=objects[j].y;
      printf("%c:%c dist:%.4f\n", objects[i].letter,objects[j].letter,
              sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)));
    }
  }

  return 0;
}