Compilare: user.cpp: In function ‘bool Check(int)’: user.cpp:16:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Fact[Idx].size(); ++ i) ^ user.cpp: In function ‘void Add(int)’: user.cpp:24:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Fact[Idx].size(); ++ i) ^ user.cpp: In function ‘void Sub(int)’: user.cpp:30:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Fact[Idx].size(); ++ i) ^ user.cpp: In function ‘int main()’: user.cpp:63:23: warning: format ‘%i’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%i\n", Ans); ^