UPC6597: Don't Be a Subsequence（貪心+思惟）

6597: Don't Be a Subsequence 時間限制: 1 Sec  內存限制: 128 MB 提交: 209  解決: 34 [提交] [狀態] [討論版] [命題人:admin]php 題目描述ios A subsequence of a string S is a string that can be obtained by deleting zero or more char

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