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class Solution {
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 public:
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  bool checkRecord(string s);
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};
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/*********************************************************/
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bool Solution::checkRecord(string s) {
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  int i, size = s.size(), maxL = 0, countA = 0, countL = 0;
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  for (i = 0; i < size; ++i) {
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    if (s[i] == 'L') {
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      ++countL;
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    } else {
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      countL = 0;
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    }
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    if (s[i] == 'A') {
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      ++countA;
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    }
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    if (maxL < countL) {
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      maxL = countL;
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    }
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    if (countA >= 2 || maxL >= 3) {
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      return false;
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    }
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  }
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  return true;
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}
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/*********************************************************/