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Have you been looking for an excuse to buy a robot vacuum? Well, if $600 off a great model sounds like a good excuse to you, check out this Amazon deal on the Ecovacs Deebot X9 Pro Omni. As of Feb. 27, this robot vacuum is down to $699, a 46% discount off the list price. Not only that, but according to camelcamelcamel, it's never been cheaper than this before.
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Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).
For the film, the director asked him to dress up as an admiral. It was for a cameo scene, shaking hands with Hanks when the crew were rescued from the sea.