Compilare: user.cpp: In function ‘void Citire()’: user.cpp:22:19: warning: unused variable ‘contr’ [-Wunused-variable] int i,k=0,x,y,contr=1; ^ user.cpp:23:16: warning: unused variable ‘p’ [-Wunused-variable] nod *prim,*p,*u; ^ user.cpp: In function ‘void BreadhtFirst()’: user.cpp:55:18: warning: variable ‘v’ set but not used [-Wunused-but-set-variable] int i,contor,v,pr,ul; ^ user.cpp: In function ‘int main()’: user.cpp:84:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp: In function ‘void Citire()’: user.cpp:43:32: warning: ‘u’ may be used uninitialized in this function [-Wmaybe-uninitialized] u->urm=prim; ^