The official statement of a problem is always the one in the PDF document. The HTML version of the statement is also given to help you, but may contain some content that is not well displayed. In case of doubt, always use the PDF.
Input
0 0 100 100 80 80 20 20 70 70 30 30
Output
0 0 100 100 80 80 20 20 70 70 30 30 [28.28, 42.43, 98.99, 113.14, 141.42]
24 15 25 16 25 87 55 75 5 70
24 15 25 16 25 87 55 75 5 70 [1.41, 58.19, 67.54, 72.01]