Package g0101_0200.s0171_excel_sheet_column_number

Class Solution

java.lang.Object

g0101_0200.s0171_excel_sheet_column_number.Solution

public class Solution
extends Object

171 - Excel Sheet Column Number.<p>Easy</p> <p>Given a string <code>columnTitle</code> that represents the column title as appear in an Excel sheet, return <em>its corresponding column number</em>.</p> <p>For example:</p> <pre><code> A -> 1 B -> 2 C -> 3 ... Z -> 26 AA -> 27 AB -> 28 ... </code></pre> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> columnTitle = &ldquo;A&rdquo;</p> <p><strong>Output:</strong> 1</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> columnTitle = &ldquo;AB&rdquo;</p> <p><strong>Output:</strong> 28</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> columnTitle = &ldquo;ZY&rdquo;</p> <p><strong>Output:</strong> 701</p> <p><strong>Example 4:</strong></p> <p><strong>Input:</strong> columnTitle = &ldquo;FXSHRXW&rdquo;</p> <p><strong>Output:</strong> 2147483647</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= columnTitle.length <= 7</code></li> <li><code>columnTitle</code> consists only of uppercase English letters.</li> <li><code>columnTitle</code> is in the range <code>[&quot;A&quot;, &quot;FXSHRXW&quot;]</code>.</li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	titleToNumber(String s)

Methods inherited from class java.lang.Object

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

Constructor Details

Solution

public Solution()

Method Details

titleToNumber

public int titleToNumber(String s)