Compilare: user.cpp: In function ‘void init()’: user.cpp:46:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<G[x0].size();i++) ^ user.cpp: In function ‘void dijkstra()’: user.cpp:61:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<G[vfmin].size();j++) ^ user.cpp: In function ‘void afisare()’: user.cpp:72:7: warning: unused variable ‘poz’ [-Wunused-variable] int i,poz,lg; ^ user.cpp:72:11: warning: unused variable ‘lg’ [-Wunused-variable] int i,poz,lg; ^ user.cpp: In function ‘void citire()’: user.cpp:27:26: 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:30:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d",&x,&y,&cost); ^