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

#define LEN	81
#define LINES	100

char *strdup(const char *s)
{
  unsigned len = strlen(s);
  char *p = malloc(len + 1);
  return p ? strcpy(p, s) : NULL;
}

int compara(char **p1, char **p2)
{  
  return strcmp(*p1, *p2);
}

int main(int argc, char *argv[])
{
  FILE *f;
  if (argc != 2) {
    fprintf(stderr, "utilizare: program numefisier\n");
    return 1;
  }
  if (!(f = fopen(argv[1], "r"))) {
    perror("eroare la deschidere");
    return 1;
  }
  int i = 0, size = 0;
  // char text[LINES][LEN];
  // char *text[LINES];
  char **text = NULL;
  char line[LEN];
  while (fgets(line, LEN, f)) {
    if (i >= size) {
      char **t1 = realloc(text, (size+=10)*sizeof(char *));
      if (t1) text = t1; else break;
    }
    text[i++] = strdup(line);
  }
  int linii = i;
  qsort(text, linii, sizeof(char *), compara);
  for (i = 0; i < linii; ++i) {
    fputs(text[i], stdout);
    free(text[i]);
  }
  //  while (fgets(line, LEN, f))
  //  fputs(line, stdout);
  fclose(f);
  return 0;
}