Amazon Interview Experience | Set 238 (For SDE)
- Find the missing number in the increasing sequence. i.e. :
input: 1 2 3 5 6 7 output: 4. Tell the complexity.
- Tell YES or NO if two binary trees have the same numbers (could be of different structures, non-unique elements)
- Find the nth from frequent character in string (any character)
- TPM guy: Design an elevator system (one lift, maybe more)
- Design a Messenger like Facebook or Whatsapp
- Given 1M U.S. phone numbers (10 digit), choose a data structure/method for the most efficient search. Tell the complexity.
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