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g0101_0200.s0168_excel_sheet_column_title.readme.md Maven / Gradle / Ivy

168\. Excel Sheet Column Title

Easy

Given an integer `columnNumber`, return _its corresponding column title as it appears in an Excel sheet_.

For example:

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

**Example 1:**

**Input:** columnNumber = 1

**Output:** "A"

**Example 2:**

**Input:** columnNumber = 28

**Output:** "AB"

**Example 3:**

**Input:** columnNumber = 701

**Output:** "ZY"

**Constraints:**

*   1 <= columnNumber <= 231 - 1