Backtracking has proven itself to be a universal algorithmic technique that can be applied while solving all kinds of computational problems, from the most primitive (such as counting all possible ...
この記事は note株式会社 Advent Calendar 2022の 15 日目の記事です。 LeetCode はプログラミング問題の対策サイトだというのが専らの紹介文だと思うんだけど、別にそれだけに限定した使い方じゃなくても十分楽しいサービスだよ、という話をしたい。 LeetCodeとは ...
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# [1994. The Number of Good Subsets](https://leetcode.com/problems/the-number-of-good-subsets) [中文文档](/solution/1900-1999/1994.The%20Number%20of%20Good ...