Compilare: main.cpp: In function 'int main()': main.cpp:98:32: warning: 'r.gigi::cul' may be used uninitialized in this function [-Wmaybe-uninitialized] char costi = r.cul - 1 + 'a'; ~~~~~~~~~~^~~~~ main.cpp:97:38: warning: 'r.gigi::y' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << r.x << ' ' << r.y << '\n'; ^~~~ main.cpp:97:24: warning: 'r.gigi::x' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << r.x << ' ' << r.y << '\n'; ^~~