Compilare: main.cpp: In function 'void aduna(std::vector<int>&, std::vector<int>)': main.cpp:13:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < a.size() || rest > 0; ++i) { ~~^~~~~~~~~~ main.cpp:14:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i >= a.size()) { ~~^~~~~~~~~~~ main.cpp:19:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < b.size()) ~~^~~~~~~~~~