Eroare de compilare: main.cpp: In function 'bool bellmanford(int)': main.cpp:39:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (int i = 0; i < graf[nodcurent].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:40:32: error: 'class std::vector<std::pair<int, int> >' has no member named 'first' 40 | int vecin = graf[nodcurent].first; | ^~~~~ main.cpp:41:31: error: 'class std::vector<std::pair<int, int> >' has no member named 'second' 41 | int cost = graf[nodcurent].second; | ^~~~~~ Non zero exit status: 1