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Interesting problem... even more interesting solution

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440bx:
Hello,

What follows is, at best, only indirectly related to Pascal or programming in that it tests one's abilities to visualize solutions to a problem.

The problem is one given to elementary school children in China.  It is presented in youtube. Link: https://www.youtube.com/watch?v=3g8voItQD0c

I invite those interested in problem solving to take a crack at it.

For the record, I did solve the problem but not the way I would have liked to have solved it.

Have fun!

MathMan:
Being the show-off that I am I posted my solution here initially, sorry  :-[

Just for the record - I solved it too, mathematically, as I usually do.

Thaddy:
This is an elementary school problem. What's the fuzz?

440bx:

--- Quote from: MathMan on November 27, 2024, 09:09:59 am ---Just for the record - I solved it too, mathematically, as I usually do.

--- End quote ---
That's how I solved it too but the really beautiful solution, which he gives at the end, I missed.

Thaddy:
Did I miss something in removing the noise? Took less than two seconds to solve it when I knew the constants and the length of the video.
The Chinese are right.

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