Rohit on his birthday

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Rohit is celebreating his birthday. He invited all of his friends. He asks Saan to help him check wether all of the invited friends are present in the party or not. The number of friends being large to his decides to check the presence of of friend randomly. In the party every friend has a unique ID number. Saan is having a list containg ID numbers (in asecnding order) of the friends present in th

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solution.cppC++17

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