Compilare: main.cpp: In member function 'void Graf::ciclu_eulerian()': main.cpp:64:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for(i = 0; i < lista_adiacenta[x].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for(int i = 0; i < euler.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~~~