#A. C++-初识C++-设置变量a=5.5,b=6.7,c=9.3, 输出式子(-b+4ac)/(4a)的值

    Type: Default 1000ms 256MiB

C++-初识C++-设置变量a=5.5,b=6.7,c=9.3, 输出式子(-b+4ac)/(4a)的值

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Background

Description

image

Format

Input

Output

Samples


8.99545

Limitation

1s, 1024KiB for each test case.