In given table of numbers find three numbers with these properties:
- all three numbers must be different,
- middle number must me average of other two numbers,
- distance between first and second number must be equal to
distance between second and third number,
(all three numbers may be in single row , or in single column, or may be laying on diagonal)
Find as many numbers as you can in 100 seconds.
Last updated on 2016年07月28日
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