Yesterday I was pairing the socks from the clean laundry, and figured out the way I was doing it is not very efficient. 저는 양말 한 켤레를 고르고 그 양말과 짝을 찾기 위해 더미를 반복하는 순진한 검색을 하고 있었어요. This requires iterating over n n n socks on average.