Solution: Valid Word Abbreviation
Understand how to validate word abbreviations by applying the two-pointer strategy to simultaneously traverse the word and its abbreviation. Learn how to handle numeric skips and character matches effectively, ensuring correct abbreviation verification. This lesson builds your skill in linear string processing and handling edge cases like leading zeros.
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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 ...