Compilare: main.cpp: In function 'void inmultire(std::vector<int>&, int)': main.cpp:13:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < a.size(); ++i) { ~~^~~~~~~~~~ main.cpp: In function 'void aduna(std::vector<int>&, std::vector<int>)': main.cpp:56:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < max(a.size(), b.size()); ++i) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:57:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < a.size() && i < b.size()) ~~^~~~~~~~~~ main.cpp:57:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < a.size() && i < b.size()) ~~^~~~~~~~~~ main.cpp:59:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (i >= a.size() && i < b.size()) ~~^~~~~~~~~~~ main.cpp:59:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (i >= a.size() && i < b.size()) ~~^~~~~~~~~~ main.cpp:62:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < a.size(); ++i) { ~~^~~~~~~~~~ main.cpp:64:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i == a.size() - 1) ~~^~~~~~~~~~~~~~~