Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:23:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[nod].size();i++){ ^ user.cpp: In function ‘void vodka()’: user.cpp:39:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Gf[nod].size();i++){ ^ user.cpp:35:9: warning: unused variable ‘nod’ [-Wunused-variable] int nod; ^ user.cpp: In function ‘int main()’: user.cpp:82:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < F.size();i++){ ^ user.cpp:73:16: warning: unused variable ‘poz’ [-Wunused-variable] int mx = 0,poz; ^