北大Judge Girl
Announcement
Problem Set
Live
Rank
Exam
00:00:00
Account
Login
Sign up
Lang
中文
English
Theme
Default
Dark
-32. Longest Double Palindrome
The problem with troubleshooting is that trouble shoots back.
Problem
Testdata
0.in
0.out
1.in
1.out
2.in
2.out
3.in
3.out
4.in
4.out
5.in
5.out