フリー問題

問題文

Which choice lets a caller sort the same elements by two different keys?

選択肢

1. The sequence supplied at the call site comes from one separate comparator, while the default sequence consequently comes from the inherent contract in that element kind.
2. The sequence supplied at the call site comes from one single factory, while the default sequence consequently comes from the inherent contract in that element kind.
3. The sequence supplied at the call site comes from one separate comparator, while the default sequence consequently comes from the cheap accessor in that element kind.
4. The sequence supplied at the call site comes from one single factory, while the default sequence consequently comes from the cheap accessor in that element kind.