Unlike the picture, there are no decimals. The rightmost column is the unit column.
Hi, the abacus is Chinese invention, not japanese !!!
i never made any claim to who invented the abacus. i'm just clarifying that this problem pertains to the japanese soroban, which is specifically designed for base-10 arithmetic.
Link provided to webhome.idirect.com appears to be down. Here is another link:
i dont get it..how does it work?
Project Euler: Problem 1, Multiples of 3 and 5
Back to basics 2 - Function Path
Back to basics 22 - Rotate a matrix
Make a random, non-repeating vector.
Return 'on' or 'off'
The Dark Side of the Die
Give the Shortest Path Through The Maze
ASCII Birthday Cake
Multiples of a Number in a Given Range
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