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This a great book of puzzels and logics.-This is a great book of puzzels and logics.

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用贪心算法求解删数问题,贪心算法作为解决问题的一类重要方法，因其直观、高效的特点而受到重视-Deleted with the greedy algorithm to solve a few problems Abstract greedy algorithm to solve the problem as a class of important ways, because of its intuitive and efficient characteristics of attention.

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