Web Reference: For every string listed, print " YES " if it is a valid mobile number and " NO " if it is not on separate lines. Do not print the quotes. Jul 31, 2024 · HackerRank Validating phone numbers solution in python 2 and 3 with practical program code example and complete full step by step explanation Let's dive into the interesting topic of regular expressions! You are given some input, and you are required to check whether they are valid mobile numbers. A valid mobile number is a ten digit number starting with a 7, 8 or 9.
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