` ````
```

Loading Question ...

Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings.
The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be **any** subsequence of the other strings.

A **subsequence** is a sequence that can be derived from one sequence by deleting some characters without changing the order of the remaining elements. Trivially, any string is a subsequence of itself and an empty string is a subsequence of any string.

The input will be two strings, and the output needs to be the length of the longest uncommon subsequence. If the longest uncommon subsequence doesn't exist, return -1.

**Example 1:**

Input:"aba", "cdc"Output:3Explanation:The longest uncommon subsequence is "aba" (or "cdc"),

because "aba" is a subsequence of "aba",

but not a subsequence of any other strings in the group of two strings.

**Note:**

- Both strings' lengths will not exceed 100.
- Only letters from a ~ z will appear in input strings.

Seen this question in a real interview before?

Yes

No

When did you encounter this question?

last week

last month

last 3 month

last 6 month

more than 6 months

other

Which stage?

Online Assessment

Phone Interview

On Campus Interview

Onsite Interview

Don't know

Which company?

Adobe

Aetion

Airbnb

Alibaba

Amazon

Apple

Baidu

Bloomberg

Cloudera

Coursera

Cryptic Studios

Dropbox

eBay

Epic Systems

Expedia

Facebook

Fallible

Games

Gilt Groupe

GoDaddy

Goo

Google

Hedvig

Helix

Houzz

Hulu

Indeed

Intuit

IXL

LinkedIn

LiveRamp

Lyft

MAQ Software

Mathworks

Microsoft

NetEase

Netsuite

Palantir

Palantir Technologies

Pinterest

Pocket Gems

Poynt

Pure

Pure Storage

Rackspace

Radius

Riot

Riot Games

Samsung

Snapchat

Square

Storage

Tencent

TinyCo

Twitter

Two Sigma

Uber

Valve

WAP

Works Applications

Yahoo

Yahoo!

Yelp

Zappos

Zenefits

How can we help you?