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Given a non-empty tree with root R, and with weight Wi assigned to each tree node Ti. The weight of a path from R to L is defined to be the sum 阅读全文
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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
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Forbes magazine publishes every year its list of billionaires based on the annual ranking of the world's wealthiest people. Now you are supposed to si 阅读全文
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Mice and Rice is the name of a programming contest in which each programmer must write a piece of code to control the movements of a mouse in a given 阅读全文