Compilare: user.cpp: In function ‘int main()’: user.cpp:36:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<=v[curent].size()-1; ++i) ^ user.cpp:38:76: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (d[v[curent][i]]==-1 && v[curent][i]!=0 && i<v[curent].size()) ^ user.cpp:18:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(intrare,"%d%d%d",&n,&m,&s); ^ user.cpp:21:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(intrare,"%d%d",&x,&y); ^