Question

我制作了一个Python脚本来测试Monty Hall Problem 我的问题是代码似乎输出了30％的胜利和60％的损失，而它应该做相反的事情。

debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug1: Connecting to 52.1.*.* [52.1.*.*] port 22.
debug1: Connection established.
debug1: identity file mypem.pem type -1
debug1: identity file mypem.pem-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.2
debug1: match: OpenSSH_6.2 pat OpenSSH*
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5-etm@openssh.com none
debug1: kex: client->server aes128-ctr hmac-md5-etm@openssh.com none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: RSA 6b:5a:e2:0c:c5:98:ff:34:6e:c6:2c:84:ea:a0:88:0f
debug1: Host '52.1.*.*' is known and matches the RSA host key.
debug1: Found key in /Users/sergey.novgorodsky/.ssh/known_hosts:2
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: mypem.pem
debug1: read PEM private key done: type RSA
debug1: Authentications that can continue: publickey
debug1: No more authentication methods to try.
Permission denied (publickey).

我觉得我错过了一些明显的东西。任何帮助将不胜感激。

Answer 1

这实际上并没有正确实现Monty Hall问题。当初始猜测不正确时，在给出切换要约之前会显示另一个不正确的门，因此这是一个确定性选项。当初始猜测正确时，其他一个不正确的门会随机显示。

在您的实施中，在最初的猜测之后，您没有得到任何额外的信息 - 您只是随意选择第二扇门，这与您的第一扇门不同。

以下是如何实施正确方法的示例：

In [168]: from random import randint, choice
     ...: wins = 0
     ...: losses = 0
     ...: for i in range(1000):
     ...:     correctDoor = randint(1, 3)
     ...:     guessDoor = randint(1, 3)
     ...:     if guessDoor != correctDoor:
     ...:         newGuessDoor = correctDoor
     ...:     else:
     ...:         newGuessDoor = choice([i for i in [1,2,3] if i != guessDoor])
     ...:     if newGuessDoor == correctDoor:
     ...:         wins = wins+1
     ...:     else:
     ...:         losses = losses+1
     ...: print('Wins = ' + str(wins) + '\nLosses = ' + str(losses) + '')
     ...:
Wins = 653
Losses = 347

Python3脚本没有产生预期的结果

1 个答案: