svoid test_substringsScoreIC_optimized1() {
  embedded void testIt(S s, S... l) {
    Set<S> set = litciset(l);
    assertEqualsVerbose(substringsScoreIC(s, set), substringsScoreIC_optimized1(s, set));
  }
  testIt("abcd", "a", "B");
  testIt("abcd", "a", "ab");
  testIt("abcdab", "ab", "x");
}