回答編集履歴
3
今更だけど、無駄な処理をしてたので修正。
test
CHANGED
@@ -22,9 +22,9 @@
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def my_shuffle(src):
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dst = src[:]
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while True:
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dst = src[:]
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random.shuffle(dst)
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**実行結果** [Wandbox](https://wandbox.org/permlink/
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**実行結果** [Wandbox](https://wandbox.org/permlink/EKjPqj85WXTMt1wh)
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```
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[2, 1, 3]
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[3, 1, 2]
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[1, 3, 2]
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[3, 2, 1]
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[1, 3, 2]
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[2, 3, 1]
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[3, 2, 1]
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[2, 1, 3]
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[1, 2
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[3, 1, 2]
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[
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[1, 3, 2]
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[3, 2, 1]
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[1, 3, 2]
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[3,
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[3, 1, 2]
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[3, 1, 2]
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```
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@@ -132,9 +132,9 @@
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def my_shuffle(src):
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dst = src[:]
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while True:
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dst = src[:]
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random.shuffle(dst)
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2
追記
test
CHANGED
@@ -4,7 +4,7 @@
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一度`list(
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一度`list(辞書.keys())`を取得したら、それを使うようにしてください。
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@@ -113,3 +113,65 @@
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上記コードの`my_shuffle`では第一要素が変わるまで何回もシャッフルし続けています。
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書いてみた
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---
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上記の点を踏まえると次のように書くことが出来ます。
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```Python
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import random
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def my_shuffle(src):
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while True:
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dst = src[:]
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random.shuffle(dst)
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if src[0] != dst[0]:
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break
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return dst
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my_dict = {
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'a': 16, 'b': 29, 'c': 35, 'd': 55, 'e': 57, 'n': 70, 'o': 72, 'p': 101, 'q': 103
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}
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keys = list(my_dict.keys())
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n = int(input())
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for _ in range(n):
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keys = my_shuffle(keys)
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print(keys[:2])
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```
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関数の使い方にかなり無駄があるので、そのような基礎的な部分も改めて復習してください。
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1
コードの変更
test
CHANGED
@@ -20,29 +20,21 @@
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def shuffled(src):
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"""引数自体を変更せずに、シャッフルしたリストを返す。"""
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dst = src[:]
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random.shuffle(dst)
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return dst
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def my_shuffle(src):
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while True:
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dst = src[:]
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ds
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random.shuffle(dst)
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if src[0] != dst[0]:
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break
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return dst
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@@ -56,9 +48,9 @@
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for _ in range(20):
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my_list = my_shuffle(my_list)
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print(my_list)
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my_list = my_shuffle(my_list)
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@@ -72,15 +64,37 @@
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-
**実行結果** [Wandbox](https://wandbox.org/permlink/
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+
**実行結果** [Wandbox](https://wandbox.org/permlink/ZqJTMqamvafVMi3Q)
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```
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[3, 2, 1]
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[2, 1, 3]
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[1, 3, 2]
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[2, 3, 1]
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[1, 2, 3]
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[2, 1, 3]
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[3, 2, 1]
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[2, 1, 3]
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[1, 2, 3]
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[3, 1, 2]
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[2, 1, 3]
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[1, 3, 2]
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[2, 3, 1]
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[3, 1, 2]
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@@ -90,31 +104,9 @@
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[2, 3, 1]
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[3, 2, 1]
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[1, 2, 3]
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[1, 3, 2]
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```
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