Virtual currency FTO
Publish: 2021-05-16 03:00:29
1. Today, October 19, 2018-78, 8 dollars
2. There is no map; However, after 12 rectangles are spliced, they are another rectangle; Then the sum of the lengths of the 12 rectangles is the inner overlapping line, which is calculated twice; So l (2) = 40 * 2 + 40 * 2 * 2 = 240; L(3)=40*2+40*2*3=320
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