Compilare: user.cpp: In function ‘int bfs(int)’: user.cpp:24:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:42:36: warning: variable ‘critic’ set but not used [-Wunused-but-set-variable] int m,i,x,y,cap,s,nod,vecin,st,critic,mini,ns,vs; ^~~~~~ user.cpp:43:30: 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:45:41: 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,&cap); ^