Problem
A 岛屿 1000ms 512MiB Submit
B 小朋友 1000ms 512MiB Submit
C 列表 1000ms 512MiB Submit
D 种植 1000ms 512MiB Submit

According to the contest rules, you cannot view your submission details at current.

Oh, there is no clarification!

0624

Status: Done
Rule: IOI
Problem: 4
Start at: 2025-6-24 18:30
End at: 2025-6-24 22:30
Duration: 4 hour(s)
Host: kcs007
Partic.: 18