Compilare: main.cpp: In member function 'node* skiplist::FindCMMare(int)': main.cpp:202:17: warning: unused variable 'numar' [-Wunused-variable] int i=nivel,numar=0; ^~~~~ main.cpp: In function 'int main()': main.cpp:234:13: warning: unused variable 'j' [-Wunused-variable] int i,n,j,x,y,z; ^ main.cpp: In member function 'void skiplist::FindNode(int)': main.cpp:162:11: warning: 'n' may be used uninitialized in this function [-Wmaybe-uninitialized] node *n=header,*prev; ^