// uloha-4-3.c -- Tyzden 4 - Uloha 3
// Martin Hoang, 15.10.2014 13:35:50

#include <stdio.h>

int main()
{
  char x[10],y[10],y_1[10],x_1[10];
  int counter_1 = 0, counter_2 = 0, i = 0, j = 0, var;
  FILE *fr_1,*fr_2;

  fr_1 = fopen("PRVY.TXT", "r");
  fr_2 = fopen("DRUHY.TXT", "r");
  while (((x_1[i] = getc(fr_1)) != EOF) && ((y_1[j] = getc(fr_2)) != EOF))
  {
   fscanf(fr_1, "%c", &x_1[i]);
   fscanf(fr_2, "%c", &y_1[j]);
   j++;
   i++;
   counter_2++;
  }
  for (i = 0; i <= counter_2; i++)
  {
    if (x_1[i] != y_1[i]) counter_1++;
  }
  i = 0; j = 0;
  while (((x[i] = getc(fr_1)) != EOF) || ((y[j] = getc(fr_2)) != EOF))
  {
   fscanf(fr_1, "%c", &x[i]);
   fscanf(fr_2, "%c", &y[j]);
   if (x[i] != EOF) i++;
   if (y[j] != EOF) j++;
  }
  if (j > i) var = j - i; else var = i - j;
  if (counter_2 == 0) printf("Subory su identicke");
  else printf("Pocet roznych znakov: %i\n", counter_2);
  if (j != i) printf("Jeden zo suborov je dlhsi o %i znakov\n", var);
  fclose(fr_1);
  fclose(fr_2);

  return 0;
}