Compilare: main.cpp: In function 'int main()': main.cpp:45:80: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 45 | distances[el.first].first == distances[node].first + el.second && main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int i = 1; i < distances.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~