Compilare: user.c: In function ‘main’: user.c:32:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d\n", &Z, &C); ^ user.c:53:4: warning: ‘e’ may be used uninitialized in this function [-Wmaybe-uninitialized] e--; ^ user.c:55:20: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] fputc(theater[b++] + 'A', f); ^