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Solution: Strobogrammatic Number

Explore the two pointer technique to verify if a given number string is strobogrammatic. Learn how to compare digit pairs from both ends using a fixed mapping and understand the efficient O(n) time and O(1) space complexity of this approach.

Statement

Given a string num representing an integer, determine whether it is a strobogrammatic number. Return TRUE if the number is strobogrammatic or FALSE if it is not.

Note: A strobogrammatic number appears the same when rotated 180180 ...