Compilare: main.cpp: In function 'void calc_dp(Trie*, char)': main.cpp:91:13: warning: unused variable 'lose' [-Wunused-variable] int lose = Lose(lit); ^~~~ main.cpp: In function 'void trie_add(Trie*, int, std::__cxx11::string&)': main.cpp:113:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz == s.size()) ~~~~^~~~~~~~~~~ main.cpp: In function 'std::__cxx11::string conv2(int)': main.cpp:148:1: warning: control reaches end of non-void function [-Wreturn-type] } ^