/in/foo.cc: In function 'int find(int)':
/in/foo.cc:7:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if(x!=fa[x]) fa[x]=find(fa[x]);return fa[x];
  ^~
/in/foo.cc:7:33: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  if(x!=fa[x]) fa[x]=find(fa[x]);return fa[x];
                                 ^~~~~~