In general, one useful approach is to pass a length to the 'counted string' function one smaller than the size of the buffer and then explicitly assign zero to the last character in the buffer.

通常，一种有用的方法是，向“计数字符串”函数传递比缓冲区大小小一的长度，然后将零显式赋给缓冲区中的最后一个字符。

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The client writes the string to be counted into memcached, and the worker uses the ID supplied by the client to read the string, count the words, then writes the information back to memcached.

客户机把要被计数的字符串写入 memcached，工人使用客户机提供的 ID 读取字符串，统计单词数量，然后将信息写回 memcached。

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Thus, two different sequence of "buy" days could produce the same string of decreasing prices and be counted as only a single solution.

因此，两个不同的天数序列可能产生同一个股价序列，这样只能计算一次。

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