#BZOJ4142. 宇宙飞艇
-
ID: 13601
Type: RemoteJudge
1000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
宇宙飞艇
题目描述
输入格式
输出格式
4
1 1
0 1
1 0
-1 0
0 -1
2
2
1 2 1 0
数据范围与约定
