Read the details of the problem very carefully and make note of any example cases given. Experiment with pencil and paper to get a feel for the ideas behind the problem.
认真阅读题目本身的细节，仔细分析对题目给出的示例，研究题目时使用纸和笔来获得一些关于解题的思路。
Read the details of the problem very carefully and make note of any example cases given. Experiment with pencil and paper to get a feel for the ideas behind the problem.
认真阅读题目本身的细节，仔细分析对题目给出的示例，研究题目时使用纸和笔来获得一些关于解题的思路。
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