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Re:两个代码就是加1的位置不一样，为什么一个对一个错？

Posted by towelie at 2014-02-24 08:29:44 on Problem 1423 and last updated at 2014-02-24 08:32:35
In Reply To:Re:两个代码就是加1的位置不一样，为什么一个对一个错？ Posted by:kimi940211 at 2014-02-23 22:01:57 
It's a floating point round-off error: e.g.

(pow(2.0, 53) + 1) and pow(2.0, 53) would be rounded to the same floating point number when using the IEEE 754 representation

> 一个是m加1，一个是m赋值给answer后answer加1
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