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题目如下 Jeff's got n cards, each card contains either digit 0, or digit 5. Jeff can choose several cards and put them in a line so that he gets some numb 阅读全文
posted @ 2025-07-12 21:56
sirro1uta
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题目如下 A. Number Transformation time limit per test2 seconds memory limit per test512 megabytes You are given two integers 𝑥 and 𝑦. You want to choose 阅读全文
posted @ 2025-07-12 21:24
sirro1uta
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题目如下 B. Alphabetical Strings time limit per test2 seconds memory limit per test512 megabytes A string 𝑠 of length 𝑛 (1≤𝑛≤26) is called alphabetical 阅读全文
posted @ 2025-07-12 20:24
sirro1uta
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