Compilare: main.cpp: In function 'std::pair<long long int, std::vector<int> > divide(int, int)': main.cpp:37:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < lef.size(); i++) ~~^~~~~~~~~~~~ main.cpp:39:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < rig.size(); i++) ~~^~~~~~~~~~~~ main.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < candidates.size(); i++) ~~^~~~~~~~~~~~~~~~~~~