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class Solution {
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  public boolean repeatedSubstringPattern(String s) {
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    String temp = "";
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    for (int i = 0; i < s.length() / 2; i++) {
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      temp += s.charAt(i);
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      if (s.length() % temp.length() == 0) {
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        int times_repeat = s.length() / temp.length();
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        StringBuilder str = new StringBuilder();
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        for (int j = 0; j < times_repeat; j++) {
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          str.append(temp);
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        }
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        if (str.toString().equals(s)) return true;
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      }
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    }
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    return false;
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  }
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}