Compilare: main.cpp: In function 'void dijkstra(int, int)': main.cpp:30:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(i=0;i<v[poz].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:34:28: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] 34 | if(d[urm]>d[poz]+val) | ~~~~~^