Interleaving String
Given strings s1, s2, and s3, find whether s3 is formed by an interleaving of s1 and s2.
An interleaving of two strings s and t is a configuration where s and t are divided into n and m substrings respectively, such that:
s = s1 + s2 + ... + snt = t1 + t2 + ... + tm|n - m| <= 1- The interleaving is
s1 + t1 + s2 + t2 + s3 + t3 + ...ort1 + s1 + t2 + s2 + t3 + s3 + ...
Note: a + b is the concatenation of strings a and b.
Example 1
Input
s1 = "aabcc", s2 = "dbbca", s3 = "aadbbcbcac"Output
trueThe string can be formed by interleaving characters from
s1 and s2 while preserving the order of both strings.Example 2
Input
s1 = "aabcc", s2 = "dbbca", s3 = "aadbbbaccc"Output
falseNo interleaving of
s1 and s2 can produce this s3 while preserving both original character orders.Constraints
- 0 <= s1.length, s2.length <= 100
- 0 <= s3.length <= 200
- s1, s2, and s3 consist of lowercase English letters