Compilare: user.cpp: In function ‘int main()’: user.cpp:81:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i< v[0].v.size(); i++) ^ user.cpp:102:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<v2[nod].v.size() && mere; i++){ ^ user.cpp:111:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i< v[arc.destinatie].v.size(); i++) ^ user.cpp:133:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i< v2[n+1].v.size(); i++) ^ user.cpp:152:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<v[nod].v.size() && mere; i++){ ^ user.cpp:161:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i< v2[arc.destinatie].v.size(); i++) ^