Stone game 4

class Solution {
    public boolean winnerSquareGame(int n) {
        boolean[] dp=new boolean[n+1];
        for(int i=0; i<n; i++){
            if(dp[i]){
                continue;
            }
            for(int k=1; i+k*k<=n; k++){
                dp[i+k*k]=true;
            }
        }
        return dp[n];
    }
}
#Status: took help with dp.