Compilare: main.cpp: In function 'int main()': main.cpp:49:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (int i = 0; i < odd_deg.size(); i += 2) { | ~~^~~~~~~~~~~~~~~~ main.cpp:60:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for (int i = 1; i+1 < ret.size(); i += 2) { | ~~~~^~~~~~~~~~~~