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

int vzestupne(int a, int b)
{
  return (a < b);
}

void setrid1(int p[], int Max, int (*p_f)())
{
  int Mez, Nejmensi, I;
  for (Mez = 0; Mez < Max - 1; Mez++) {
    Nejmensi = Mez;
    for (I = Mez + 1; I <= Max - 1; I++) {
      /* if (p[I] < p[Nejmensi]) { */
      if (p_f(p[I], p[Nejmensi])) {
        Nejmensi = I;
      }
    }
    I = p[Nejmensi];
    p[Nejmensi] = p[Mez];
    p[Mez] = I;
  }
}

void setrid2(int *p, int Max)
{
  int *p_pom1 = p, *p_pom2 = p, *p_Nejmensi, nejmensi;
  for (p_pom1 = p; p_pom1 < p + Max - 1; p_pom1++) {
    p_Nejmensi = p_pom1;
    for (p_pom2 = p_pom1 + 1; p_pom2 <= p + Max - 1; p_pom2++) {
      if (*p_pom2 < *p_Nejmensi) {
        p_Nejmensi = p_pom2;
      }
    }
    nejmensi = *p_Nejmensi;
    *p_Nejmensi = *p_pom1;
    *p_pom1 = nejmensi;
  }
}

int main()
{
  char *vstup, *vystup;
  int *p_i;
  int delka = 0;
  FILE *fw, *fr;
  if ((vstup = (char *) malloc(20 * sizeof(char))) == NULL) {
    printf("M lo pamØti!\n");
    exit(1);
  }
  if ((vystup = (char *) malloc(20 * sizeof(char))) == NULL) {
    printf("M lo pamØti!\n");
    exit(1);
  }
  if ((p_i = (int *) malloc(sizeof(int))) == NULL) {
    printf("M lo pamØti!\n");
    exit(1);
  }
  printf("Zadej jm‚no vstupn¡ho souboru: "); scanf("%s", vstup);
  printf("Zadej jm‚no vìstupn¡ho souboru: "); scanf("%s", vystup);
  fr = fopen(vstup, "r");
  while (fscanf(fr, "%d", p_i) != EOF)
    delka++;
  fclose(fr);
  free((void *) p_i);
  if ((p_i = (int *) malloc(delka * sizeof(int))) == NULL) {
    printf("M lo pamØti!\n");
    exit(1);
  }
  fr = fopen(vstup, "r");
  delka = 0;
  while (fscanf(fr, "%d", p_i + delka) != EOF)
    delka++;
  fclose(fr);
  setrid1(p_i, delka, vzestupne);
  fw = fopen(vystup, "w");
  for (delka-- ; 0 <= delka; delka--)
    fprintf(fw, "%d\n", *(p_i + delka));
  fclose(fw);
  return 0;
}