#coding:utf-8

from random import *

import time

import bisect

from bisect import bisect_left

"""

这条谜语来自一个名叫 Dan O'Leary的朋友。他最近发现一个单词，这个单词有一个音

节，五个字母，然后有以下所述的特定性质。 去掉第一个字母，得到的是与原词同音异

形异义词，发音与原词一模一样。替换一下首字母，也就是把第一个字母放回去，然后

把第二个字母去掉，得到的是另外一个这样的同音异形异义词。那么问题来了，这是个

什么词呢？

现在我给你提供一个错误的例子。咱们先看一下五个字母的单词，「wrack」。去掉第一

个字母，得到的四个字母单词是「R-A-C-K」。但去掉第二个字母得到的是「W-A-CK」，

这就不是前两个词的同音异形异义词。（译者注：词义的细节就略去了，没有太大

必要。）

但这个词至少有一个，Dan 和咱们都知道的，分别删除前两个字母会产生两个同音异形

异义的四个字母的单词。问题就是，这是哪个词？

字典提供了一个名为read_dictionary的函数，该函数会读取发音词典，然后返回

一个 Python 词典，返回的这个词典会映射每一个单词到描述单词读音的字符串。

写一个函数来找到所有满足谜语要求的单词。

"""

filename = "C:\Users\LzyRapx\PycharmProjects\untitled\c06d.txt"

fin = open('C:\Users\LzyRapx\PycharmProjects\untitled\words.txt')

def read_dictionary(filename):

"""

Reads from a file and builds a dictionary that maps from

each word to a string that describes its primary pronunciation.

Secondary pronunciations are added to the dictionary with

a number, in parentheses, at the end of the key, so the

key for the second pronunciation of "abdominal" is "abdominal(2)".

filename: string

returns: map from string to pronunciation

"""

d = dict()

fin = open(filename)

for line in fin:

# skip over the comments

if line[0] == '#':

continue

t = line.split()

word = t[0].lower()

pron = ' '.join(t[1:])

d[word] = pron

return d

def create_dict(doc):

d = {}

while True:

line = doc.readline()

if len(line.strip()) in range(4,6):

d[line.strip()] = True

if not line:

break

return d

def new_word(word):

#del(word[0]) wrong

return word[1:]

def new_word2(word):

#del(word[1]) wrong

return word[0]+word[2:]

def solve():

for word in word_d:

word2 = new_word(word)

word3 = new_word(word)

if word in pron_d:

if word2 in pron_d:

if word3 in pron_d:

if pron_d[word] == pron_d[word2]:

if pron_d[word] == pron_d[word3]:

print word,word2,word3

if __name__ =='__main__':

word_d = create_dict(fin)

pron_d = read_dictionary(filename)

solve()

"""

knell nell nell

wrong rong rong

knit nit nit

herb erb erb

wrap rap rap

knead nead nead

knew new new

knee nee nee

hours ours ours

gnash nash nash

eaux aux aux

wraps raps raps

knees nees nees

kneed need need

kneel neel neel

whole hole hole

llama lama lama

scent cent cent

wring ring ring

knoll noll noll

wrung rung rung

extra xtra xtra

write rite rite

gnat nat nat

knots nots nots

wrack rack rack

wreck reck reck

wrath rath rath

aisle isle isle

knave nave nave

hour our our

eide ide ide

gnats nats nats

llano lano lano

knock nock nock

wrest rest rest

eerie erie erie

wrote rote rote

knack nack nack

wrist rist rist

wren ren ren

knot not not

"""