carloscn / carloscn/structstudy

leetcode168:Excel表列名称(excel-sheet-column-title)

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Level-easy 一般问题 字符串 数学 数组
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C
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Description

给你一个整数 columnNumber ,返回它在 Excel 表中相对应的列名称。

例如:

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

示例 1:
输入:columnNumber = 1
输出:"A"

示例 2:
输入:columnNumber = 28
输出:"AB"

示例 3:
输入:columnNumber = 701
输出:"ZY"

示例 4:
输入:columnNumber = 2147483647
输出:"FXSHRXW"
 

提示:

1 <= columnNumber <= 231 - 1

来源:力扣(LeetCode)
链接:https://leetcode.cn/problems/excel-sheet-column-title

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