منابع مشابه
Threes!, Fives, 1024!, and 2048 are Hard
We analyze the computational complexity of the popular computer games Threes!, 1024!, 2048 and many of their variants. For most known versions expanded to an m× n board, we show that it is NP-hard to decide whether a given starting position can be played to reach a specific (constant) tile value.
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This is a delightful book, and in some ways an alarming one. It deals with the special entertainment films for children, produced by Mary Field for the J. Arthur Rank Organisation between 1944 and 1950. She called the book "Good Company", because her aim was to see that for a few hours each week, children should have an opportunity of "intimacy with good example", believing that "the friends yo...
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Accidents happen: “An invisible car came out of nowhere, struck my vehicle and vanished.” “I pulled away from the side of the road, glanced at my mother-in-law, and headed for the embankment.” “As I approached the intersection a sign suddenly appeared in a place where no stop sign had ever appeared before.” Luckily, we don’t normally have to deal with problems as bizarre as these. One interesti...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2018
ISSN: 1745-2473,1745-2481
DOI: 10.1038/s41567-017-0032-5