/in/foo.cc: In function 'void Dijkstra(int, LL*)':
/in/foo.cc:49:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if (vis[k.sc]) continue; vis[k.sc] = 1;
   ^~
/in/foo.cc:49:28: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
   if (vis[k.sc]) continue; vis[k.sc] = 1;
                            ^~~
/in/foo.cc:50:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < v[k.sc].size(); i++)
                   ~~^~~~~~~~~~~~~~~~