ZOJ1002Fire net C++
Fire Net
Time Limit: 2000 msMemory Limit: 65536 KB
Suppose that we have a square city with straight streets. A map of a city is a square board with n rows and n columns, each representing a street or a piece of wall.
A blockhouse is a small castle that has
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2020-11-21 13:09:31 ·
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