A mixed integer programming formulation for the off-line version of the problem has been proposed.

给出了问题的数学描述，并对其静态问题，构造了一个混合整数规划模型。

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The difference between the two commands is that gets returns an extra bit of information: a 64-bit integer that acts much like a "version" identifier of a name/value pair.

两个命令之间的差异在于，gets 返回的信息稍微多一些：64 位的整型值非常像名称/值对的 “版本” 标识符。

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When using arithmetic expressions, it's also important to remember that, until version 7.2, Vim supported only integer arithmetic. A common mistake under earlier versions was writing something like.

在使用算术表达式时，还需要记住一点，在版本7.2之前，Vim只支持整数运算。

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