Word Break
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public class Solution { public boolean wordBreak(String s, Set<String> wordDict) { boolean[] res = new boolean[s.length() + 1]; res[0] = true; for (int i = 0; i < s.length(); i++) { if (!res[i]) { continue; } for (String word: wordDict) { int len = i + word.length(); if (len > s.length()) { continue; } if (s.substring(i, len).equals(word)) { res[len] = true; } } } return res[s.length()]; }}
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