Compilare: main.cpp: In function 'std::vector<int> Plus(const std::vector<int>&, const std::vector<int>&)': main.cpp:21:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ia < a.size() && ib < b.size()) ~~~^~~~~~~~~~ main.cpp:21:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ia < a.size() && ib < b.size()) ~~~^~~~~~~~~~ main.cpp:40:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ia < a.size()) ~~~^~~~~~~~~~ main.cpp:43:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ib < b.size()) ~~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> Mult(const std::vector<int>&, const std::vector<int>&)': main.cpp:53:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ia < a.size() && ib < b.size()) ~~~^~~~~~~~~~ main.cpp:53:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ia < a.size() && ib < b.size()) ~~~^~~~~~~~~~