Compilare: user.cpp: In function ‘void numar_fii()’: user.cpp:37:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++) ^ user.cpp: In function ‘void calculeaza_cost()’: user.cpp:85:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++) ^ user.cpp:102:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[start].size();i++) ^ user.cpp:111:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++) ^ user.cpp:102:30: warning: ‘start’ may be used uninitialized in this function [-Wmaybe-uninitialized] for (i=0;i<v[start].size();i++) ^