Create 0039-combination-sum.md - #53
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shintaro1993
reviewed
Nov 3, 2025
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| if added == remain: | ||
| results.append(combination) | ||
| continue |
shintaro1993
reviewed
Nov 3, 2025
| while stack: | ||
| combination, remain, index = stack.pop() | ||
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| for i in range(index, len(ascendings)): |
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趣味の範囲かもしれませんが、ここの i と index は少し紛らわしく感じるかもしれないと思いました。start や start_index なども選択肢としてよさそうかなと思いました。（index を start にするという意味になります。）
tokuhirat
reviewed
Nov 4, 2025
| stack.append((combination + [added], total + added, index)) | ||
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| return results | ||
| ``` |
oda
reviewed
Nov 17, 2025
| - https://discord.com/channels/1084280443945353267/1196472827457589338/1232733730280575017 | ||
| - > 答えの数ですが、candidates = [1..target] の場合、これは分割数というものですね。 | ||
| - https://oeis.org/A000041 | ||
| - 計算量の評価、複雑そうだったのでサボってしまった。 |
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この問題：https://leetcode.com/problems/combination-sum/
次の問題：https://leetcode.com/problems/generate-parentheses/