#1991Medium#1 in Bloomberg's list· asked at 20 companies
Word Break
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What we know
Example 1
Input: s = "leetcode", wordDict = ["leet","code"] Output: true
Example 2
Input: s = "applepenapple", wordDict = ["apple","pen"] Output: true
"apple pen apple" reuses "apple".
Example 3
Input: s = "catsandog", wordDict = ["cats","dog","sand","and","cat"] Output: false
Constraints
- •
1 <= s.length <= 300 - •
1 <= wordDict.length <= 1000 - •
1 <= wordDict[i].length <= 20 - •
All the strings of
wordDictare unique.