#378Medium#1 in DoorDash's list· asked at 6 companies
Design Add and Search Words Data Structure
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What we know
Example 1
Input: ["WordDictionary","addWord","addWord","addWord","search","search","search","search"] [[],["bad"],["dad"],["mad"],["pad"],["bad"],[".ad"],["b.."]] Output: [null,null,null,null,false,true,true,true]
Constraints
- •
1 <= word.length <= 25 - •
wordinaddWordconsists of lowercase letters; insearchit may also contain '.'. - •
There will be at most 2 dots in
searchwords. - •
At most
10^4calls will be made.