Security Issues

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Aman has been working as the security guard at Basu Company from the last 10 years. He only has one task at hand, he has to observe how many people went in the office and how many left. So he writes down a '+' when ever a person enters the office and '-' whenever a person exits the office. Initially there is no one in the office. But as usual he dosed off while at duty and maybe missed some going

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solution.cppC++17

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