Solution: Largest Odd Number in String
Explore how to identify the largest odd-valued substring within a given number string using a greedy technique. This lesson helps you implement a solution by scanning from the end to find the rightmost odd digit and extracting the substring accordingly. You will understand the approach's time and space efficiency and apply it confidently in coding interviews.
We'll cover the following...
We'll cover the following...
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:
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