#3269. 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，保留小数点3位
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ID: 3269
Type: Default
1000ms
256MiB
Tried: 4
Accepted: 3
Difficulty: 10
Uploaded By:
编创小匠 (paifuture)
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，保留小数点3位
Background
Description
设置变量a=5.5,b=6.7,c=9.3, 输出式子(-b+4ac)/(4a)的值，保留小数点3位，并输出
Format
Input
Output
Samples
8.995
Limitation
1s, 1024KiB for each test case.