#524. How Big Is It?
How Big Is It?
说明
样例
3
3 2.0 1.0 2.0
4 2.0 2.0 2.0 2.0
3 2.0 1.0 4.0
9.657
16.000
12.657
3
3 2.0 1.0 2.0
4 2.0 2.0 2.0 2.0
3 2.0 1.0 4.0
9.657
16.000
12.657
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