Compilare: user.cpp: In function ‘void dijkstra(int)’: user.cpp:29:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a[nod].size();i++) ^ user.cpp: In function ‘void dijkstra2(int)’: user.cpp:58:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a[nod].size();i++) ^ user.cpp:48:18: warning: unused variable ‘nodc’ [-Wunused-variable] int i,curent,nodc=nod; ^ user.cpp: In function ‘int main()’: user.cpp:107:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<sol.size();i++) ^ user.cpp:112:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<sol2.size();i++) ^