Compilare: main.cpp: In function 'void Citeste()': main.cpp:27:14: warning: unused variable 'y' [-Wunused-variable] int i, x,y,c; ^ main.cpp:27:16: warning: unused variable 'c' [-Wunused-variable] int i, x,y,c; ^ main.cpp: In function 'void Dijkstra()': main.cpp:59:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<G[im].size(); j++) ~^~~~~~~~~~~~~