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Interview Question

Software Development Engineer Intern Interview(Student Candidate) Los Angeles, CA

Given a 3x3 keypad with ABC on number 2, DEF on number

  3 and so on. Given a set of numbers, output all the english words that can be obtained from it. Assume an in-built function exists to check if the given word is an english word or not. Eg: inuput: 228, output: bat, cat, act and so on.
Answer

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