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What (who) is watchman$91230$ - definition
Watchman problem
watchman
WIKIMEDIA DISAMBIGUATION PAGE
Watchman (disambiguation); Watchmen (disambiguation)
(watchmen)
A watchman is a person whose job is to guard a building or area.
N-COUNT
see also nightwatchman
Watchman
WIKIMEDIA DISAMBIGUATION PAGE
Watchman (disambiguation); Watchmen (disambiguation)
·noun One set to watch; a person who keeps guard; a guard; a sentinel.
II. Watchman ·noun Specifically, one who guards a building, or the streets of a city, by night.
watchman
WIKIMEDIA DISAMBIGUATION PAGE
Watchman (disambiguation); Watchmen (disambiguation)
n. a night watchman
Wikipedia
Watchman route problem
The Watchman Problem is an optimization problem in computational geometry where the objective is to compute the shortest route a watchman should take to guard an entire area with obstacles given only a map of the area. The challenge is to make sure the watchman peeks behind every corner and to determine the best order in which corners should be visited in. The problem may be solved in polynomial time when the area to be guarded is a simple polygon. The problem is NP-hard for polygons with holes, but may be approximated in polynomial time by a solution whose length is within a polylogarithmic factor of optimal.
