Excel Sheet Column Number

Given a string columnTitle that represents the column title as appears in an Excel sheet, return its corresponding column number.

DescriptionExplanationSolutions

Given a string columnTitle that represents the column title as appears in an Excel sheet, return its corresponding column number.

For example:

Example 1

Input: columnTitle = "A"

Output: 1

Example 2

Input: columnTitle = "AB"

Output: 28

Example 3

Input: columnTitle = "ZY"

Output: 701

Constraints

• 1 <= columnTitle.length <= 7
• columnTitle consists only of uppercase English letters.
• columnTitle is in the range ["A", "FXSHRXW"].

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JavaJavaScriptTypeScriptPython3C#

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class Solution { public int titleToNumber(String columnTitle) { } }

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