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##题面 Problem Description Rope Pulling, also known as Tug of War, is a classic game. Zhang3 organized a rope pulling contest between Class 1 and Class 阅读全文
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##题面 It is Zhang3's birthday! Zhang3 has bought a birthday cake and now it's time to take it home. There are n villages, labeled 1,2,…,n. There are m 阅读全文
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##题面 Problem Description It's the night before Zhang3's birthday, and she's preparing for her birthday party in the classroom. She has brought a huge 阅读全文
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##题面 Problem Description Sometimes, changing the order of the words in a sentence doesn't influence understanding. For example, if we change "what tim 阅读全文