Shortest Uncommon Subsequence
1. You are given two strings S1 and S2. 2. You have to find length of the shortest subsequence in S1 which is not a subsequence in S2. 3. If no such subsequence exists, then print '-1'.
1 <= length of strings S1 and S2 <= 1000
Two Strings S1 and S2
A number representing the length of shortest uncommon subsequence.