HackerRank 30 Days Of Code Challenge, Day8(Ques 9 in Java)
Objective Today, we're learning about Key-Value pair mappings using a Map or Dictionary data structure. Check out the Tutorial tab for learning materials and an instructional video! Task Given names and phone numbers, assemble a phone book that maps friends' names to their respective phone numbers. You will then be given an unknown number of names to query your phone book for. For each queried, print the associated entry from your phone book on a new line in the form name=phoneNumber ; if an entry for is not found, print Not found instead. Note: Your phone book should be a Dictionary/Map/HashMap data structure. Input Format The first line contains an integer, , denoting the number of entries in the phone book. Each of the subsequent lines describes an entry in the form of space-separated values on a single line. The first value is a friend's name, and the ...