Compilare: main.cpp: In function 'void Dijkstra(int)': main.cpp:38:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < l[Nod].size(); ++i) { ~~^~~~~~~~~~~~~~~ main.cpp:43:18: warning: unused variable 'ok' [-Wunused-variable] bool ok = 0, ok2 = 0, ok3 = 0; ^~ main.cpp:43:26: warning: unused variable 'ok2' [-Wunused-variable] bool ok = 0, ok2 = 0, ok3 = 0; ^~~ main.cpp:43:35: warning: unused variable 'ok3' [-Wunused-variable] bool ok = 0, ok2 = 0, ok3 = 0; ^~~ main.cpp: In function 'int main()': main.cpp:88:31: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] fout << dmin << " " << ans; ^