回答編集履歴
4
修正
test
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@@ -22,7 +22,9 @@
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２つ目のプログラムはmapの用法の悪い例です。
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指示
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今回の問題のポイントは、指示が上から下へと順序があるので、その通りに実行する必要があるため内包表記の処理に改めました。
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3
追記
test
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@@ -10,7 +10,7 @@
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--- 追記 ---
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--- 追記1 ---
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@@ -18,6 +18,14 @@
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--- 追記2 ---
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指示は上から下へと順序があるので、その通りに実行する必要があるためmapは不要だと私は結論付けました。
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```python
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'''
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@@ -68,9 +76,13 @@
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print(reduce(run_command, init_property + commands))
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```
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``` python
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# —- Another solution —-
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# —- Another solution 1 —-
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@@ -155,3 +167,79 @@
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print(status)
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```
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``` python
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# —- Another solution 2 —-
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class Status:
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def __init__(self):
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self.properties = [0, 0]
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def __str__(self):
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return ' '.join(map(str, self.properties))
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def s_in(self, i, v):
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self.properties[i - 1] = v
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def s_add(self, v):
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self.properties[1] = self.properties[0] + v
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def s_sub(self, v):
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self.s_add(-v)
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def command(cmd):
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kw = command[0]
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args = list(map(int, command[1:]))
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after = {
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'IN': status.s_in,
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'Add': status.s_add,
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'Sub': status.s_sub,
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}[kw](*args)
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return None
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status = Status()
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commands = [
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input().split()
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for _ in range(int(input()))
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]
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after = [status.command(cmd) for cmd in commands]
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print(status)
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```
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2
追記
test
CHANGED
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@@ -14,7 +14,7 @@
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-
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LouiS0616さんのクラスのアイデアからmapを使用した別解を提案します。
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1
追記
test
CHANGED
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@@ -7,6 +7,14 @@
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7
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run_commandはプレイヤーの財産（property）と指示（command）を引数に指示に従った後のプレイヤーの財産を返します。
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--- 追記 ---
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@@ -60,4 +68,90 @@
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print(reduce(run_command, init_property + commands))
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# —- Another solution —-
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class Status:
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def __init__(self):
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self.properties = [0, 0]
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def __str__(self):
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return ' '.join(map(str, self.properties))
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def s_in(self, i, v):
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self.properties[i - 1] = v
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def s_add(self, v):
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self.properties[1] = self.properties[0] + v
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def s_sub(self, v):
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self.s_add(-v)
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def run_command(status):
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command_dict = {
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'IN': status.s_in,
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'Add': status.s_add,
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'Sub': status.s_sub,
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}
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def _run_command(command):
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kw = command[0]
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args = list(map(int, command[1:]))
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command_dict[kw](*args)
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return None
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return _run_command
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status = Status()
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commands = [
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input().split()
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for _ in range(int(input()))
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]
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after = list(map(run_command(status), commands))
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print(status)
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63
157
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```
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