May 2022
Beginner to intermediate
296 pages
5h 54m
Korean
Content preview from 똑똑한 코드 작성을 위한 실전 알고리즘
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88
똑똑한 코드 작성을 위한 실전 알고리즘
➍
서로 다른 두 키가 해시 코드 값으로 식별된 동일한 버킷에 매핑되면 충돌이 발생한다.
해당 해시 테이블을 다음과 같이 사용할 수 있다.
table = Hashtable(1000)
table.put('April', 30)
table.put('May', 31)
table.put('September', 30)
print(table.get('August')) # 미스(miss): 존재하지 않는 키이므로 None을 출력
print(table.get('September')) # 히트(hit): 30을 출력
모든 것이 정상적으로 동작한다면 객체
1
,
000
개를 저장할 수 있는 배열에
Entry
객체
3
개가
이
3
개의 (키, 값 ) 쌍에 대해 생성될 것이다.
put
()
과
get
()
의 성능은 배열 내
Entry
객체 개
수와는 독립적이므로 각 행동은 상수 시간 성능, 즉
O
(
1
)으로 고려될 수 있다.
get
(
key
)
가
key
에 대한 해시 코드로 식별된 버킷에서
Entry
를 찾는 데 실패하면
미스
miss
가
발생한다.
get
(
key
)
는 인자로 들어오는
key
가 일치하는
key
의
Entry
를 찾으면
히트
hit
가 발
생한다. 두 동작은 일반적이다. 하지만 두 키에 대한 해시 코드가 같은 버킷을 계산하는 경우에
발생하는
충돌을 해결할 전략
은
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.