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954c45864b
* 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>
53 lines
1.4 KiB
Python
53 lines
1.4 KiB
Python
"""
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File: hanota.py
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Created Time: 2023-07-16
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Author: krahets (krahets@163.com)
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"""
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def move(src: list[int], tar: list[int]):
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"""円盤を移動"""
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# src の上から円盤を取り出す
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pan = src.pop()
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# 円盤を tar の上に置く
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tar.append(pan)
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def dfs(i: int, src: list[int], buf: list[int], tar: list[int]):
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"""ハノイの塔問題 f(i) を解く"""
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# src に円盤が 1 つだけ残っている場合、それを tar に移動
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if i == 1:
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move(src, tar)
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return
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# 部分問題 f(i-1)：tar の助けを借りて src の上の i-1 個の円盤を buf に移動
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dfs(i - 1, src, tar, buf)
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# 部分問題 f(1)：残りの 1 個の円盤を src から tar に移動
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move(src, tar)
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# 部分問題 f(i-1)：src の助けを借りて buf の上の i-1 個の円盤を tar に移動
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dfs(i - 1, buf, src, tar)
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def solve_hanota(A: list[int], B: list[int], C: list[int]):
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"""ハノイの塔問題を解く"""
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n = len(A)
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# B の助けを借りて A の上の n 個の円盤を C に移動
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dfs(n, A, B, C)
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"""ドライバーコード"""
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if __name__ == "__main__":
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# リストの末尾が柱の上部
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A = [5, 4, 3, 2, 1]
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B = []
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C = []
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print("初期状態：")
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print(f"A = {A}")
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print(f"B = {B}")
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print(f"C = {C}")
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solve_hanota(A, B, C)
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print("円盤移動後：")
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print(f"A = {A}")
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print(f"B = {B}")
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print(f"C = {C}") |