import cpp
import semmle.code.cpp.valuenumbering.GlobalValueNumbering

from GVN g
where strictcount(g.getAnExpr()) > 1
select
  g,
  strictconcat(Location loc
  | loc = g.getAnExpr().getLocation()
  | loc.getStartLine() +
    ":c" + loc.getStartColumn() + "-c" + loc.getEndColumn()
  , " ")