Compilare: main.cpp: In function 'int bfs()': main.cpp:23:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for (int i = 0; i < l[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int dijkstra(int)': main.cpp:60:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for (int i = 0; i < l[x].size(); i++) { | ~~^~~~~~~~~~~~~