November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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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.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.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.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.
393
부록
A
연습문제 해답
parent = merkle_parent(hashes[i], hashes[i + 1])
parent_level.append(parent)
return parent_level
연습문제
11. 3
merkle
_
root
함수를 작성하시오.
def merkle_root(hashes):
'''Takes a list of binary hashes and returns the merkle root
'''
current_level = hashes
while len(current_level) > 1:
current_level = merkle_parent_level(current_level)
return current_level[0]
연습문제
11. 4
Block
클래스에서
validate
_
merkle
_
root
메서드를 작성하시오.
class Block:
...
def validate_merkle_root(self):
hashes = [h[::-1] for h in self.tx_hashes]
root = merkle_root(hashes)
return root[::-1] == self.merkle_root
연습문제
11. 5
27
개의 단말 노드가 달린 머클트리를 구성하고 모든 노드를
None
값으로 초기화하시오. 그리
고 머클트리의 각 레벨을 출력하시오. ...
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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.