mirror of
https://github.com/krahets/hello-algo.git
synced 2026-06-28 16:44:22 +00:00
docs: add Japanese translate documents (#1812)
* docs: add Japanese documents (`ja/docs`) * docs: add Japanese documents (`ja/codes`) * docs: add Japanese documents * Remove pythontutor blocks in ja/ * Add an empty at the end of each markdown file. * Add the missing figures (use the English version temporarily). * Add index.md for Japanese version. * Add index.html for Japanese version. * Add missing index.assets * Fix backtracking_algorithm.md for Japanese version. * Add avatar_eltociear.jpg. Fix image links on the Japanese landing page. * Add the Japanese banner. --------- Co-authored-by: krahets <krahets@163.com>
This commit is contained in:
committed by
GitHub
parent
2487a27036
commit
954c45864b
@@ -0,0 +1,98 @@
|
||||
"""
|
||||
File: array_queue.py
|
||||
Created Time: 2022-12-01
|
||||
Author: Peng Chen (pengchzn@gmail.com)
|
||||
"""
|
||||
|
||||
|
||||
class ArrayQueue:
|
||||
"""循環配列ベースのキュークラス"""
|
||||
|
||||
def __init__(self, size: int):
|
||||
"""コンストラクタ"""
|
||||
self._nums: list[int] = [0] * size # キュー要素を格納する配列
|
||||
self._front: int = 0 # フロントポインタ、フロント要素を指す
|
||||
self._size: int = 0 # キューの長さ
|
||||
|
||||
def capacity(self) -> int:
|
||||
"""キューの容量を取得"""
|
||||
return len(self._nums)
|
||||
|
||||
def size(self) -> int:
|
||||
"""キューの長さを取得"""
|
||||
return self._size
|
||||
|
||||
def is_empty(self) -> bool:
|
||||
"""キューが空かどうかを判定"""
|
||||
return self._size == 0
|
||||
|
||||
def push(self, num: int):
|
||||
"""エンキュー"""
|
||||
if self._size == self.capacity():
|
||||
raise IndexError("Queue is full")
|
||||
# リアポインタを計算、リアインデックス + 1 を指す
|
||||
# モジュロ演算を使用してリアポインタを配列の末尾から先頭に戻す
|
||||
rear: int = (self._front + self._size) % self.capacity()
|
||||
# num をリアに追加
|
||||
self._nums[rear] = num
|
||||
self._size += 1
|
||||
|
||||
def pop(self) -> int:
|
||||
"""デキュー"""
|
||||
num: int = self.peek()
|
||||
# フロントポインタを1つ後ろに移動、末尾を超えた場合は配列の先頭に戻る
|
||||
self._front = (self._front + 1) % self.capacity()
|
||||
self._size -= 1
|
||||
return num
|
||||
|
||||
def peek(self) -> int:
|
||||
"""フロント要素にアクセス"""
|
||||
if self.is_empty():
|
||||
raise IndexError("Queue is empty")
|
||||
return self._nums[self._front]
|
||||
|
||||
def to_list(self) -> list[int]:
|
||||
"""出力用の配列を返す"""
|
||||
res = [0] * self.size()
|
||||
j: int = self._front
|
||||
for i in range(self.size()):
|
||||
res[i] = self._nums[(j % self.capacity())]
|
||||
j += 1
|
||||
return res
|
||||
|
||||
|
||||
"""Driver Code"""
|
||||
if __name__ == "__main__":
|
||||
# キューを初期化
|
||||
queue = ArrayQueue(10)
|
||||
|
||||
# 要素をエンキュー
|
||||
queue.push(1)
|
||||
queue.push(3)
|
||||
queue.push(2)
|
||||
queue.push(5)
|
||||
queue.push(4)
|
||||
print("キュー queue =", queue.to_list())
|
||||
|
||||
# フロント要素にアクセス
|
||||
peek: int = queue.peek()
|
||||
print("フロント要素 peek =", peek)
|
||||
|
||||
# 要素をデキュー
|
||||
pop: int = queue.pop()
|
||||
print("デキューされた要素 pop =", pop)
|
||||
print("デキュー後のキュー =", queue.to_list())
|
||||
|
||||
# キューの長さを取得
|
||||
size: int = queue.size()
|
||||
print("キューの長さ size =", size)
|
||||
|
||||
# キューが空かどうかを判定
|
||||
is_empty: bool = queue.is_empty()
|
||||
print("キューが空かどうか =", is_empty)
|
||||
|
||||
# 循環配列のテスト
|
||||
for i in range(10):
|
||||
queue.push(i)
|
||||
queue.pop()
|
||||
print("第", i, "回目のエンキュー + デキューで、queue =", queue.to_list())
|
||||
Reference in New Issue
Block a user