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Create 139 Word Break #38

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Create 139 Word Break #38

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19 changes: 19 additions & 0 deletions src/com/blankj/medium/139 Word Break
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
public boolean wordBreak(String s, List<String> wordDict) {
HashSet<String> words=new HashSet(wordDict);
int n=s.length();
boolean[] dp=new boolean[n+1];

int len=0;
for(String word: wordDict) len=Math.max(len,word.length());

dp[0]=true;
for(int i=0;i<n;i++){
if(!dp[i]) continue;

for(int l=1;i+l<=n && l <= len ; l++){
if(words.contains(s.substring(i,i+l))) dp[i+1]=true;
}
}

return dp[n];
}