練習問題/解答例/英単語しりとりプログラム/Python の変更点

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#author("2026-07-01T02:36:00+09:00;2023-02-23T23:33:34+09:00","default:vip","vip")
#author("2026-07-04T18:03:33+09:00;2023-02-23T23:33:34+09:00","default:vip","vip")
[[練習問題]]
 #!/usr/bin/python
 import sys
 from random import shuffle, choice
 from itertools import count
 from collections import defaultdict
 
 try:
     input = raw_input
 except NameError:
     pass
 
 with(open(sys.argv[1], 'r')) as F:
     dic = list(set(F.read().strip().split('\n')))
 first_words = [ e[0] for e in dic ]
 used = defaultdict(int)
 
 players = [ 'あなた', 'わたし' ]
 shuffle(players)
 startswith = None
 for i in count(1):
     if players[i % len(players)] == 'あなた':
         if startswith == None:
             startswith = choice(first_words)
         sys.stdout.write('{0:3}: あなたの番です。 "{1}": '.format(i, startswith))
         s = input()
         while not (s.startswith(startswith) and s in dic):
             if not s.startswith(startswith):
                 print('"{0}"で始まっていません。 '.format(startswith))
             else:
                 print('辞書にありません。')
             sys.stdout.write('{0:3}: あなたの番です。 "{1}": '.format(i, startswith))
             s = input()
         if s in dic:
             if s in used:
                 print('"{0}"は{1}回目に{2}が使用しています。わたしの勝ちです。'.format(s, used[s], players[used[s]%len(players)]))
                 break
             startswith = s[-1]
             used[s] = i
     else:
         msg = '{0:3}: わたしの番です。      '.format(i)
         if startswith == None:
             word = choice(dic)
             startswith = word[-1]
             used[word] = i
             print(msg + '{0}'.format(word))
         else:
             words = [ e for e in dic if e.startswith(startswith) and e not in used ]
             if len(words) == 0:
                 print('まいりました! あなたの勝ちです。')
                 break
             else:
                 word = choice(words)
                 startswith = word[-1]
                 used[word] = i
                 print(msg + '{0}'.format(word))
 print('今回のしりとりでは{0}個の単語を使用しました。'.format(len(used)))

 import sys
 import random
 
 try:
     with open(sys.argv[1], 'r') as f:
         words = tuple(set(f.read().strip().split('\n')))
 except FileNotFoundError:
     words = None
 if not words:
     words = ('one', 'two', 'three', 'eight', 'nine', 'ten')
     print("使える辞書がないお…")
     print(f"だからテスト辞書でやるお！ ({' '.join(words)})")
 
 unused_words = set(words)
 history = dict([(w, None) for w in words])
 
 HUMAN, CPU = 'おめー', 'やる夫'
 players = [HUMAN, CPU]
 
 cur_p = random.choice(players)
 cur_word = ''
 prev_tail = random.choice(words)[0]
 winner = None
 
 for turn in range(len(words)+1):
     if cur_p == HUMAN:
         while True:
             cur_word = input(f"{HUMAN}>{prev_tail}: ")
             if cur_word not in words:
                 print(f"{CPU}  : 何言ってんだこいつ")
             elif not cur_word.startswith(prev_tail):
                 print(f"{prev_tail}から始まってないお")
             else:
                 break
         if history[cur_word] is not None:
             winner = CPU
             break
     else:
         usables = [w for w in unused_words if w.startswith(prev_tail)]
         if len(usables) == 0:
             winner = HUMAN
             break
         cur_word = random.choice(usables)
         print(f"{CPU}  : {cur_word}")
     unused_words.remove(cur_word)
     history[cur_word] = (cur_p, turn)
     
     cur_p = HUMAN if cur_p == CPU else CPU
     prev_tail = cur_word[-1]
 
 if winner == CPU:
     p, turn = history[cur_word]
     print(f"それは{turn+1}回目に{p}が使ったお。{CPU}の勝ちだお")
 else:
     print(f"負けたお…{HUMAN}の勝ちだお…")
 print(f"{len(words) - len(unused_words)}個の単語が出たお")