Compilare: user.c: In function ‘main’: user.c:49:9: warning: variable ‘similar_to’ set but not used [-Wunused-but-set-variable] int similar_to[10001]; ^ user.c:48:22: warning: variable ‘repr_list’ set but not used [-Wunused-but-set-variable] int nb_repr = 0, repr_list[10000]; ^ user.c:81:16: warning: ‘root’ may be used uninitialized in this function [-Wmaybe-uninitialized] relabel(&trees[i], root, 1); ^