北大Judge Girl
Announcement
Problem Set
Live
Rank
Exam
00:00:00
Account
Login
Sign up
Lang
中文
English
Theme
Default
Dark
-96. Cow and House
The problem with troubleshooting is that trouble shoots back.
Problem
Testdata
0.in
0.out
1.in
1.out
10.in
10.out
2.in
2.out
3.in
3.out
4.in
4.out
5.in
5.out
6.in
6.out
7.in
7.out
8.in
8.out
9.in
9.out