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Given a sequence of positive numbers, a segment is defined to be a consecutive subsequence. For example, given the sequence {0.1, 0.2, 0.3, 0.4}, we h 阅读全文
posted @ 2018-06-05 23:22
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Suppose that all the keys in a binary tree are distinct positive integers. Given the preorder and inorder traversal sequences, you are supposed to out 阅读全文
posted @ 2018-06-05 22:47
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The string APPAPT contains two PAT's as substrings. The first one is formed by the 2nd, the 4th, and the 6th characters, and the second one is formed 阅读全文
posted @ 2018-06-05 21:19
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1124 Raffle for Weibo Followers (20)（20 分） John got a full mark on PAT. He was so happy that he decided to hold a raffle（抽奖） for his followers on Weib 阅读全文
posted @ 2018-06-05 21:06
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Behind the scenes in the computer's memory, color is always talked about as a series of 24 bits of information for each pixel. In an image, the color 阅读全文
posted @ 2018-06-05 20:39
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The ranklist of PAT is generated from the status list, which shows the scores of the submittions. This time you are supposed to generate the ranklist 阅读全文
posted @ 2018-06-05 20:22
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A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involved in moving a product from supplier to customer 阅读全文
posted @ 2018-06-05 12:59
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"Damn Single (单身狗)" is the Chinese nickname for someone who is being single. You are supposed to find those who are alone in a big party, so they can 阅读全文
posted @ 2018-06-05 01:36
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If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver 阅读全文
posted @ 2018-06-05 00:44
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