ISLANDS AND PIRATES

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ISLANDS AND PIRATES There are n Islands in a line in an area. There are two kinds of Pirates A and B that reside there. A Islands can be either empty or occupied by one of the Pirates. An empty Islands is said to be controlled by a tribe of Islands A if it is surrounded by Islands of Pirates A from the left and from the right. Same goes for the tribe B. Find out the number of Islands that are ei

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