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.

Easy

You are given a string num, representing a large integer. Return the largest-valued odd integer (as a string) that is a non-empty substring of num_, or an empty string_ "" if no odd integer exists.

A substring is a contiguous sequence of characters within a string.

Example 1:

Input: num = “52”

Output: “5”

Explanation: The only non-empty substrings are “5”, “2”, and “52”. “5” is the only odd number.

Example 2:

Input: num = “4206”

Output: ""

Explanation: There are no odd numbers in “4206”.

Example 3:

Input: num = “35427”

Output: “35427”

Explanation: “35427” is already an odd number.

Constraints:

• 1 <= num.length <= 105
• num only consists of digits and does not contain any leading zeros.

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
String	largestOddNumber(String num)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

largestOddNumber

public String largestOddNumber(String num)