Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:51:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<G[nod].size(); i++) ^ user.cpp: In function ‘void citire()’: user.cpp:27:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d %d",&n,&m); ^ user.cpp:30:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin,"%d %d %d",&a,&b,&c); ^