Find the Occurrence of First Almost Equal Substring
You are given two strings s and pattern.
You are given two strings s and pattern.
A string x is called almost equal to y if you can change at most one character in x to make it identical to y.
Return the smallest starting index of a substring in s that is almost equal to pattern. If no such index exists, return -1.
Example 1
Input: s = "abcdefg", pattern = "bcdffg"
Output: 1
Explanation: The substring s[1..6] == "bcdefg" can be converted to "bcdffg" by changing s[4] to "f" .
Example 2
Input: s = "ababbababa", pattern = "bacaba"
Output: 4
Explanation: The substring s[4..9] == "bababa" can be converted to "bacaba" by changing s[6] to "c" .
Example 3
Input: s = "abcd", pattern = "dba"
Output: -1
Example 4
Input: s = "dde", pattern = "d"
Output: 0
Constraints
- 1 <= pattern.length < s.length <= 10^5
- s and pattern consist only of lowercase English letters.
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