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168. excel sheet column title

admin 11月 15, 2020 0

Given a positive integer, return its corresponding column title as appear in an Excel sheet.

For example:

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1 -> A
2 -> B
3 -> C
...
26 -> Z
27 -> AA
28 -> AB 
...

Example 1:

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Input: 1
Output: "A"

Example 2:

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Input: 28
Output: "AB"

Example 3:

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2
 
Input: 701
Output: "ZY"
 
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class  {
    public String convertToTitle(int n) {
        String s = "";
      while (n != 0) {
            int temp = (n-1) % 26;
          s = (char) ('A' + temp) + s;
            n = (n-1) / 26;
      }
        return s; 
    }
}
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