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[質問] A15のJava実装について #13

@Masakore

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@Masakore

以下のコードでも動作するようですが、Tildaとcustom comparatorを利用する理由は何かあるのでしょうか?
Collections.binarySearch(T, A[i]);

B[i] = ~Collections.binarySearch(T, A[i], (x, y) -> x.compareTo(y) >= 0 ? 1 : -1);

Ref:
https://atcoder.jp/contests/tessoku-book/submissions/37611040

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