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"Good man never makes girls wait or breaks an appointment!" said the mandarin duck father. Softly touching his little ducks' head, he told them a stor 阅读全文
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The little cat is majoring in physics in the capital of Byterland. A piece of sad news comes to him these days: his mother is getting ill. Being worri 阅读全文
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Problem Description Bob and Alice are playing a new game. There are n boxes which have been numbered from 1 to n. Each box is either empty or contains 阅读全文
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题目描述 一年一度的“幻影阁夏日品酒大会”隆重开幕了。大会包含品尝和趣味挑战 两个环节,分别向优胜者颁发“首席品酒家”和“首席猎手”两个奖项,吸引了众多品酒师参加。 在大会的晚餐上,调酒师 Rainbow 调制了 n 杯鸡尾酒。这 n 杯鸡尾酒排成一行,其中第 n 杯酒 (1 ≤ i ≤ n) 被贴 阅读全文