Compilare: main.cpp: In function 'std::vector<int> aduna(std::vector<int>, std::vector<int>)': main.cpp:16:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for (int i = x.size(); i < y.size(); i++) | ~~^~~~~~~~~~ main.cpp:19:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = y.size(); i < x.size(); i++) | ~~^~~~~~~~~~ main.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (int i = 0; i < x.size(); i++) | ~~^~~~~~~~~~