Compilare: main.cpp: In function 'std::vector<int> find_eulerian_path(std::unordered_map<int, std::vector<int> >&, int)': main.cpp:32:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int i = 0; i < graf[vecin].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:73:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | for(int i = 0; i < drumuri.size(); i++){ | ~~^~~~~~~~~~~~~~~~ main.cpp:75:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for(int j = 0; j < drumuri[i].size(); j++){ | ~~^~~~~~~~~~~~~~~~~~~