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  • [LintCode] Read Characters From File

    The API: int read4(char *buf) reads 4 characters at a time from a file.

    The return value is the actual number of characters read. For example, it returns 3 if there is only 3 characters left in the file.

    By using the read4 API, implement the function int read(char *buf, int n) that reads n characters from the file.

    The read function may be called multiple times.

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  • 原文地址:https://www.cnblogs.com/lz87/p/7072121.html
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