✡ leetcode 168. Excel Sheet Column Title 26进制数字 --------- java

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

For example:

    1 -> A

    2 -> B

    3 -> C

    ...

    26 -> Z

    27 -> AA

    28 -> AB

26进制的实现。

没什么难点。就是需要需要注意是 n = (n-1)／26

public class Solution {

    public String convertToTitle(int n) {

        if (n == 0){

            return "";

        }

        StringBuffer str = new StringBuffer();

        while (n != 0){

            int pos = (n - 1) % 26;

            char ch = (char) ('A' + pos);

            str.insert(0, ch);

            n = (n - 1) / 26;

        }

        return str.toString();

    }

}

巴特西

✡ leetcode 168. Excel Sheet Column Title 26进制数字 --------- java

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