Check if an Original String Exists Given Two Encoded Strings
An original string, consisting of lowercase English letters, can be encoded by the following steps: For example, one way to encode an original string "abcdefghijklmnop" might be:...
An original string, consisting of lowercase English letters, can be encoded by the following steps:
For example, one way to encode an original string "abcdefghijklmnop" might be:
Given two encoded strings s1 and s2, consisting of lowercase English letters and digits 1-9 (inclusive), return true if there exists an original string that could be encoded as both s1 and s2. Otherwise, return false.
Note: The test cases are generated such that the number of consecutive digits in s1 and s2 does not exceed 3.
Example 1
Input: s1 = "internationalization", s2 = "i18n"
Output: true
Explanation: It is possible that "internationalization" was the original string. - "internationalization" -> Split: ["internationalization"] -> Do not replace any element -> Concatenate: "internationalization", which is s1. - "internationalization" -> Split: ["i", "nternationalizatio", "n"] -> Replace: ["i", "18", "n"] -> Concatenate: "i18n", which is s2
Example 2
Input: s1 = "l123e", s2 = "44"
Output: true
Explanation: It is possible that "leetcode" was the original string. - "leetcode" -> Split: ["l", "e", "et", "cod", "e"] -> Replace: ["l", "1", "2", "3", "e"] -> Concatenate: "l123e", which is s1. - "leetcode" -> Split: ["leet", "code"] -> Replace: ["4", "4"] -> Concatenate: "44", which is s2.
Example 3
Input: s1 = "a5b", s2 = "c5b"
Output: false
Explanation: It is impossible. - The original string encoded as s1 must start with the letter 'a'. - The original string encoded as s2 must start with the letter 'c'.
Constraints
- 1 <= s1.length, s2.length <= 40
- s1 and s2 consist of digits 1-9 (inclusive), and lowercase English letters only.
- The number of consecutive digits in s1 and s2 does not exceed 3.
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