# Largest Odd Number in String Leetcode Solution

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## Largest Odd Number in String

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.

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.

Program:

``````Found = False
length = len(num)
Largest = 0
for i in range(length)[::-1]:
if (int(num[i])%2 != 0):
Largest = i
Found = True
break
if Found == True:
return(num[:Largest+1])
else:
return ""``````