문제시간질문
I(공개)2021년 10월 4일 12:20:54What does one end mean in this question? Doesn't end mean either at the start or end? But it says it is either 1 through k or n - k + 1 through k
2021년 10월 4일 12:31:54

There was a typo. It should be "n - k + 1 through n", instead of "through k".