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Monkey and Banana A group of researchers are designing an experiment to test the IQ of a monkey. They will hang a banana at the roof of a building, an 阅读全文
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Jury Compromise In Frobnia, a far-away country, the verdicts in court trials are determined by a jury consisting of members of the general public. Eve 阅读全文
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H. Subsequences (hard version) The only difference between the easy and the hard versions is constraints. A subsequence is a string that can be derive 阅读全文
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number 题目描述 300iq loves numbers who are multiple of 300. One day he got a string consisted of numbers. He wants to know how many substrings in the str 阅读全文
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Tickets Jesus, what a great movie! Thousands of people are rushing to the cinema. However, this is really a tuff time for Joe who sells the film ticke 阅读全文
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FJ has purchased N (1 <= N <= 2000) yummy treats for the cows who get money for giving vast amounts of milk. FJ sells one treat per day and wants to m 阅读全文
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Piggy-Bank Before ACM can do anything, a budget must be prepared and the necessary financial support obtained. The main income for this action comes f 阅读全文