Given a string s, return the longest palindromic substring in s.

Example 1:

Input: s = "babad"
Output: "bab"
Explanation: "aba" is also a valid answer.

Example 2:

Input: s = "cbbd"
Output: "bb"


  • 1 <= s.length <= 1000
  • s consist of only digits and English letters.





When the master branch is ahead of the feature branch, we need to resolve some conflicts when we merge the feature branch to the master branch.

git pull origin X

X is your main/master branch, ie. `development` or master

git pull origin development



Yaokun Lin @ MachineLearningQuickNotes

Yaokun Lin @ MachineLearningQuickNotes

Actuary | ML Practitioner | Apply Tomorrow's Technology to Solve Today's Problems