Compilare: user.cpp: In function ‘void init()’: user.cpp:92:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘void extindArbore()’: user.cpp:156:9: warning: unused variable ‘pas’ [-Wunused-variable] int pas=0; ^ user.cpp: In function ‘int main()’: user.cpp:175:9: warning: unused variable ‘i’ [-Wunused-variable] int i,a,b; ^ user.cpp:175:11: warning: unused variable ‘a’ [-Wunused-variable] int i,a,b; ^ user.cpp:175:13: warning: unused variable ‘b’ [-Wunused-variable] int i,a,b; ^