Compilare: main.cpp: In function 'void Precalculare_Aux(int, int, std::vector<int>)': main.cpp:55:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= sons.size(); ++ i ) { ~~^~~~~~~~~~~~~~ main.cpp: In function 'void Dfs(int, int)': main.cpp:92:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (gr > fii.size()) ~~~^~~~~~~~~~~~ main.cpp:67:10: warning: variable 'frunza' set but not used [-Wunused-but-set-variable] bool frunza = 1; ^~~~~~