Compilare: main.cpp: In function 'int main()': main.cpp:73:11: warning: unused variable 'OK' [-Wunused-variable] bool OK; ^~ main.cpp:74:10: warning: 'alfa' may be used uninitialized in this function [-Wmaybe-uninitialized] int alfa; ^~~~ main.cpp:95:19: warning: 'copie' may be used uninitialized in this function [-Wmaybe-uninitialized] int ramas=nr-copie; ^~~~~ main.cpp:96:17: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] ramas=ramas+st-1; ~~~~~^~~