（1）2 （2）1 （3）A，

3
Accepted
0
Solutions Liked

1111

Information

ID
3
Time
1000ms
Memory
256MiB
Difficulty
10
Tags
# Submissions
19743
Accepted
906
Uploaded By
  1. About
  2. Contact Us
  3. Privacy
  4. Terms of Service
  5. Copyright Complaint
  6. Language
  7. Legacy mode
  8. Theme
  3. Worker 0, 17ms
  4. Powered by Hydro v4.9.24 Community, Modified by hetao