Compilare: main.cpp: In function 'void dijkstra(int, int)': main.cpp:35:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graf[nod].size(); i++) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < special.size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp:100:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < special.size(); i++) ~~^~~~~~~~~~~~~~~~