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Longest Palindromic Substring (medium)
Problem Statement
Given a string s
, return the longest palindromic substring
in s.
A string is called palindromic
if it reads same
from forward
as backward
.
A substring
is a contiguous sequence
of characters in the string.
Examples
-
Example 1:
- Input: s =
"racecar"
- Expected Output:
"racecar"
- Justification: The entire string is a palindrome and is the longest substring.
- Input: s =
-
Example 2:
- Input: s =
"abccd"
- Expected Output:
"cc"
- Justification: The longest palindromic substring is
"cc"
in the stringabccd
.
- Input: s =
-
Example 3:
- Input: s =
"xyzzy"
- Expected Output:
"yzzy"
- Justification: The substring
"yzzy"
is the longest palindromic substring.
- Input: s =
Try it yourself
Try solving this question here:
Python3
Python3
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Problem Statement
Examples
Try it yourself