Area of Two Circles' Intersection

600D2000· candidate master2s256 MB⌨ stdin/stdout

Sample 1of 2

Input

0 0 4
6 0 4

Output

7.25298806364175601379

Sample 2of 2

Input

0 0 5
11 0 5

Output

0.00000000000000000000

600D.cpp

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Ln 11·137 BGNU C++20 (64)