Compilare: main.cpp: In function 'int main()': main.cpp:37:29: warning: variable 'last' set but not used [-Wunused-but-set-variable] int st , med , dr , i , last ; ^~~~ main.cpp:58:20: warning: 'med' may be used uninitialized in this function [-Wmaybe-uninitialized] i = ok ( med ) ; ^