Excel Sheet Column Number LeetCode solution in C++

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// ��������Please upvote if it helps ��������
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class Solution {
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 public:
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  int titleToNumber(string columnTitle) {
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    int result = 0;
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    for (char c : columnTitle) {
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      // d = s[i](char) - 'A' + 1 (we used  s[i] -  'A' to convert the letter to
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      // a number like it's going to be C)
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      int d = c - 'A' + 1;
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      result = result * 26 + d;
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    }
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    return result;
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  }
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};

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