Compilare: main.cpp: In function 'nod* mfiu(nod*, int, nod*)': main.cpp:50:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void ansQues()': main.cpp:130:13: warning: unused variable 'k' [-Wunused-variable] int k, e; ^ main.cpp:130:16: warning: unused variable 'e' [-Wunused-variable] int k, e; ^ main.cpp:131:14: warning: variable 'tip' set but not used [-Wunused-but-set-variable] char tip; ^~~