Compilare: main.cpp: In function 'void dijkstra(int, long long int (&)[100005], int (&)[100005], int (&)[100005])': main.cpp:33:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 33 | long long cost = d[x] + v[x][i].second; | ~^~~~~~~~~~~~ main.cpp:27:39: warning: unused variable 'dx' [-Wunused-variable] 27 | | ^