Eroare de compilare: user.c:5:1: error: unknown type name ‘bool’ bool lib; ^ user.c: In function ‘main’: user.c:27:31: error: ‘false’ undeclared (first use in this function) lib = false; ^ user.c:27:31: note: each undeclared identifier is reported only once for each function it appears in user.c:33:31: error: ‘true’ undeclared (first use in this function) lib = true; ^ user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &n, &m); ^ user.c:18:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d\n", &sw); ^