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package co.kr.ibeauty.codewars;

public class DuplicateEncoder {

static String encode(String word){

String result = "";

char[] s = word.toLowerCase().toCharArray();

for(int i=0; i<s.length; i++){

String words = removeCharAt(word.toLowerCase(), i);

if(words.contains(String.valueOf(s[i])))

result += ")";

else

result += "(";

}

return result;

}

public static String removeCharAt(String s, int pos) {

return s.substring(0, pos) + s.substring(pos + 1);

}

}