Compilare: user.cpp: In function ‘void lee()’: user.cpp:51:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<=strlen(comenzi)-1;i++) ^ user.cpp:42:12: warning: unused variable ‘x’ [-Wunused-variable] double x; ^ user.cpp: In function ‘void afisare()’: user.cpp:123:24: warning: ‘camere_pos’ may be used uninitialized in this function [-Wmaybe-uninitialized] procent=camere_pos / camere * 100; ^