perplexus.info :: General : Eight Buttons

Eight Buttons (Posted on 2023-03-21)

There are precisely eight buttons in a row. Each button shows an arrow pointing left (L) or right (R).

When you press a button, all buttons in the direction of its arrow (not including itself) rotate 180 degrees.

Determine the least number of button presses required to get from RRRRLLLL to LRLRLRLR.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

The smallest number of button presses required is 6.
For an explanation, refer to the computer program assisted solution submitted by Charlie in this location and here.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: computer solution	Charlie	2023-03-21 17:26:29
computer solution	Charlie	2023-03-21 14:51:52

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