摘要:
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitra 阅读全文
posted @ 2017-10-17 14:34
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摘要:
Watchmen are in a danger and Doctor Manhattan together with his friend Daniel Dreiberg should warn them as soon as possible. There are n watchmen on a 阅读全文
posted @ 2017-10-17 14:27
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