Compilare: user.cpp: In function ‘void bellman(int, int)’: user.cpp:28:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<graf[crt].size(); i++) ^ user.cpp: In function ‘bool dijkstra(int, int)’: user.cpp:57:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<graf[ crt_nod ].size(); i++) ^ user.cpp:42:21: warning: variable ‘crt_cost’ set but not used [-Wunused-but-set-variable] int i, crt_nod, crt_cost, urm_nod, urm_cost; ^ user.cpp: In function ‘int main()’: user.cpp:79:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, x, y, z, w; ^