Compilare: main.cpp: In member function 'void skiplist::DeleteNode(int)': main.cpp:147:21: warning: unused variable 'prev' [-Wunused-variable] node *n=header,*prev; ^~~~ main.cpp: In member function 'node* skiplist::FindCMMic(int)': main.cpp:202:17: warning: unused variable 'numar' [-Wunused-variable] int i=nivel,numar=0; ^~~~~ main.cpp: In member function 'node* skiplist::FindCMMare(int)': main.cpp:224:17: warning: unused variable 'numar' [-Wunused-variable] int i=nivel,numar=0; ^~~~~ main.cpp: In function 'int main()': main.cpp:264:13: warning: unused variable 'j' [-Wunused-variable] int i,n,j,nr,v[4],k; ^ main.cpp:264:15: warning: unused variable 'nr' [-Wunused-variable] int i,n,j,nr,v[4],k; ^~ main.cpp:264:18: warning: unused variable 'v' [-Wunused-variable] int i,n,j,nr,v[4],k; ^ main.cpp:264:23: warning: unused variable 'k' [-Wunused-variable] int i,n,j,nr,v[4],k; ^ main.cpp: In member function 'node* skiplist::FindCMMic(int)': main.cpp:219:12: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] return p; ^ main.cpp: In member function 'node* skiplist::FindCMMare(int)': main.cpp:241:11: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] return p; ^