class Solution {
    public boolean wordBreak(String s, List<String> wordDict) {
        boolean[] dp = new boolean[s.length()+1];
        dp[0] = true;
        for(int i=1; i<=s.length(); i++)
        {
            for(int j=0; j<i; j++)
            {
                if(dp[j] && wordDict.contains(s.substring(j,i))){
                    dp[i] = true;
                    break;
                }                    
            }
        }
        return dp[s.length()];
    }
}