منابع مشابه
A note on unscrambling address lines
A writer stores some data in memory accessible via address lines. If an adversary permutes the address lines after the writer leaves the message, then how can a reader find the permutation? This is the so-called unscrambling address lines problem of Broder et al. [SODA’99, 1999, pp. 870–871]. By a divide-and-conquer approach, we give a very simple algorithm to recover the permutation. Our metho...
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Let G be a set of points in the plane which are colored red or green. If the number of red points differ from the number of green points by at most 1 and no color class is collinear, then there are at least |G| − 3 bichromatic lines which are determined by G. We conjecture that the tight lower bound is in fact |G| − 1.
متن کاملExperimental note on fading of briefly flashed lines.
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ژورنال
عنوان ژورنال: Nature
سال: 1871
ISSN: 0028-0836,1476-4687
DOI: 10.1038/003266c0