sbool substringsScoreICPosNeg_optimize;

static int substringsScoreICPosNeg(S s, Cl<S> pos, Cl<S> neg) {
  if (substringsScoreICPosNeg_optimize)
    ret substringsScoreIC_optimized1(s, asCISet(pos))-substringsScoreIC_optimized1(s, asCISet(neg));
  else
    ret substringsScoreIC(s, pos)-substringsScoreIC(s, neg);
}

static int substringsScoreICPosNeg(S s, Pair<? extends Cl<S>> posNeg) {
  ret substringsScoreICPosNeg(s, posNeg.a, posNeg.b);
}