Painting Wall Painting Wall
Simple+
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Nicola has built a simple robot for painting of the wall. The wall is marked at each meter and the robot has a list of painting operations. Each operation describes which part of wall it needs to paint as a range from place to place, inclusively. For example: the operation [1, 5] means to paint the sections from 1 to 5 meters including sections 1 and 5. Operations are executed in the order they are placed in the list of operations. If the range of various operations are overlapped, then they must be counted once .

Stephan has prepared a list of operations, but we need to...

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