An abbreviation of a word follows the form <first letter><number><last letter>. Below are some examples of word abbreviations:
a) it --> it (no abbreviation)
1
↓
b) d|o|g --> d1g
1 1 1
1---5----0----5--8
↓ ↓ ↓ ↓ ↓
c) i|nternationalizatio|n --> i18n
1
1---5----0
↓ ↓ ↓
d) l|ocalizatio|n --> l10n
Assume you have a dictionary and given a word, find whether its abbreviation is unique in the dictionary. A word's abbreviation is unique if no other word from the dictionary has the same abbreviation.
Example:
Given dictionary = [ "deer", "door", "cake", "card" ]
isUnique("dear") -> false
isUnique("cart") -> true
isUnique("cane") -> false
isUnique("make") -> true
[Design] [Array] [Hash Table] [String]
- Two Sum III - Data structure design (Easy)
- Generalized Abbreviation (Medium)