#3279. C++-初识C++-设置变量a=5.5,b=6.7,c=9.3（全部为double）, 输出式子(-b+4ac)/4*a的过程值
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ID: 3279
Type: Default
1000ms
256MiB
Tried: 5
Accepted: 5
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（全部为double）, 输出式子(-b+4ac)/4*a的过程值
Background
Description
设置变量a=5.5,b=6.7,c=9.3（全部为double）, 输出式子(-b+4ac)/4*a的过程值
Format
Input
Output
Samples
5.5
6.7
9.3
204.6
197.9
49.475
272.113
Limitation
1s, 1024KiB for each test case.