Package g0101_0200.s0171_excel_sheet_column_number

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    171 - Excel Sheet Column Number.

    Easy

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

    For example:

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

    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"].

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Integer titleToNumber(String s)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait