Sort Colors#101
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nodchip
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May 19, 2026
| """ | ||
| Dutch National Flag: one pass, O(1) extra space. | ||
| """ | ||
| length_zero, i, length_two = 0, 0, 0 |
| class Solution: | ||
| def sortColors(self, nums: list[int]) -> None: | ||
| """ | ||
| Dutch National Flag: one pass, O(1) extra space. |
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ドイツの国旗に例えたのは理解はできるのですが、わざわざ例える必要はないように感じました。
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オランダですね。この問題が「Dutch national flag problem」と呼ばれることがあります。
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step2.py の解法はDutch national flag というアルゴリズムのようです。step2.py以外のコメントとしては不適切ですね。
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https://leetcode.com/problems/sort-colors/description/?envType=problem-list-v2&envId=rab78cw1