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Solution: Valid Word Abbreviation

Explore how to verify the validity of a word abbreviation by using two pointers to simultaneously traverse the original word and its abbreviation. Understand how to handle numeric skips without leading zeros and match characters accurately, ensuring efficient linear time complexity and constant space usage.

Statement

A string can be abbreviated by replacing any number of non-adjacent, non-empty substrings with their respective lengths. The numeric replacements must not contain leading zeros.

Given a string word and an abbreviation abbr, determine whether abbr is a valid abbreviation of word.

The abbreviation abbr consists of lowercase English letters and numeric values. Each numeric value in abbr represents the number of characters skipped in word. Letters in abbr must match the corresponding characters in word exactly. The abbreviation is valid if and only if it fully accounts for every character in word from left to right with no characters remaining or ...