Package g1901_2000.s1903_largest_odd_number_in_string

Class Solution

java.lang.Object

g1901_2000.s1903_largest_odd_number_in_string.Solution

public class Solution
extends Object

1903 - Largest Odd Number in String.<p>Easy</p> <p>You are given a string <code>num</code>, representing a large integer. Return <em>the <strong>largest-valued odd</strong> integer (as a string) that is a <strong>non-empty substring</strong> of</em> <code>num</code><em>, or an empty string</em> <code>&quot;&quot;</code> <em>if no odd integer exists</em>.</p> <p>A <strong>substring</strong> is a contiguous sequence of characters within a string.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> num = &ldquo;52&rdquo;</p> <p><strong>Output:</strong> &ldquo;5&rdquo;</p> <p><strong>Explanation:</strong> The only non-empty substrings are &ldquo;5&rdquo;, &ldquo;2&rdquo;, and &ldquo;52&rdquo;. &ldquo;5&rdquo; is the only odd number.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> num = &ldquo;4206&rdquo;</p> <p><strong>Output:</strong> &quot;&quot;</p> <p><strong>Explanation:</strong> There are no odd numbers in &ldquo;4206&rdquo;.</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> num = &ldquo;35427&rdquo;</p> <p><strong>Output:</strong> &ldquo;35427&rdquo;</p> <p><strong>Explanation:</strong> &ldquo;35427&rdquo; is already an odd number.</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= num.length <= 10⁵</code></li> <li><code>num</code> only consists of digits and does not contain any leading zeros.</li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
String	largestOddNumber(String num)

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

largestOddNumber

public String largestOddNumber(String num)