Existence of a Substring in a String and Its Reverse
Given a string s, find any substring of length 2 which is also present in the reverse of s.
Return true if such a substring exists, and false otherwise.
Example 1
Input
s = "leetcode"Output
trueSubstring
"ee" is of length 2 and is also present in reverse(s) == "edocteel".Example 2
Input
s = "abcba"Output
trueAll of the substrings of length
2, "ab", "bc", "cb", and "ba", are also present in reverse(s) == "abcba".Constraints
- 1 <= s.length <= 100
- s consists only of lowercase English letters.