Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:2:16: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] int w,l,y;main(){std::ifstream f("text.in");char c;while(f.get(c)){if(isalpha(c)){if(!y)y=1,++w;++l;}else y=0;}std::ofstream("text.out")<<l/w;} ^