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Spoj Problem: The Great Ball(Segment Tree Or BIT type)
By Tanmoy1228, history, 10 years ago, In English

can anyone give me any idea for this problem.

Problem: The Great Ball

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10 years ago, # |
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Store each entrance and exit as an event (a change in number of people which is +1 or -1, and a time the event occurs). Then process the events in order of time and keep track of the number of people after each event.

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