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  • Amazon has many visitors to its site. And it tracks what pages the customers …

     Akash  updated 10 months, 2 weeks ago 1 Member · 1 Post
  • Akash 

    Administrator
    at

    Amazon has many visitors to its site. And it tracks what pages the customers visited, etc and other stuff.
    Make an efficient data structure for storing 3 days of information of all those customers who have visited site exactly two different days and searched more than 3 unique pages of the site in those 2 days.
    So whoever visited site exactly two days out of these three days and visited more then 3 unique pages should be in the contact list.
    What’s the efficient approach to solve these kinds of problems?

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