/in/foo.cc: In function 'void query(int, int, int, int, int)':
/in/foo.cc:58:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if(mid>=L)query(rt<<1,l,mid,L,R);if(mid<R)query(rt<<1|1,mid+1,r,L,R);
  ^~
/in/foo.cc:58:35: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
  if(mid>=L)query(rt<<1,l,mid,L,R);if(mid<R)query(rt<<1|1,mid+1,r,L,R);
                                   ^~