Solution: Valid Word Abbreviation
Understand how to use the two pointers technique to validate if a given abbreviation correctly represents a word. Learn to parse letters and numbers without leading zeros, and ensure full coverage of the word. This lesson helps you implement an efficient linear time solution with constant space.
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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 remaining or ...