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class Solution {
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 public:
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  int percentageLetter(string s, char letter) {
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    int count = 0;
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    for (int i = 0; i < s.length(); i++) {
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      if (s[i] == letter) {
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        count++;
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      }
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    }
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    return (count * 100) / s.length();
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  }
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};