Compilare: user.cpp: In function ‘int main()’: user.cpp:64:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < parts.size(); i++) ^ user.cpp:86:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (actQ < querries.size() && querries[actQ].time == time) ^ user.cpp:96:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (; actQ < querries.size(); actQ++) ^ user.cpp:98:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < parts.size(); i++) ^