Problem

Submissions

Problem: Largest Odd Number in String

Statement

You are given a string, num, which represents a large integer. Your task is to find the largest odd-valued integer that can be formed as a non-empty substring of num. Return this odd integer as a string. If no odd integer exists, return an empty string ("").

Note: A substring is a continuous sequence of characters within a string.

Constraints:

$1 \leq$ num.length $\leq 10^4$
num only consists of digits and does not contain any leading zeros.

Examples

Problem

Submissions

Problem: Largest Odd Number in String

Statement

You are given a string, num, which represents a large integer. Your task is to find the largest odd-valued integer that can be formed as a non-empty substring of num. Return this odd integer as a string. If no odd integer exists, return an empty string ("").

Note: A substring is a continuous sequence of characters within a string.

Constraints:

$1 \leq$ num.length $\leq 10^4$
num only consists of digits and does not contain any leading zeros.

Examples