Compilare: main.cpp: In function 'void dfs(int)': main.cpp:55:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<V[node].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:76:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<sol.size();i++) ~^~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:82:8: warning: unused variable 'j' [-Wunused-variable] {int i,j; ^