Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:2:50: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] std::ifstream f{"dinozaur.in"};int a[200],v;main(){for(char c;f>>c;)v=a[c]++;std::ofstream{"dinozaur.out"}<<!!v;} ^ main.cpp: In function 'int main()': main.cpp:2:74: warning: array subscript has type 'char' [-Wchar-subscripts] std::ifstream f{"dinozaur.in"};int a[200],v;main(){for(char c;f>>c;)v=a[c]++;std::ofstream{"dinozaur.out"}<<!!v;} ^