简单acm题,为什么会wrong answer?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/14 19:21:01

简单acm题,为什么会wrong answer?
Description
Your task is to Calculate a + b.
Input
There are multiple test cases.Each test case contains only one line.Each line consists of a pair of real number a and b（0

改用double吧,float很难保证在1000000以内还有4位小数的精度

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