#BZOJ2836. 魔法树
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ID: 12190
Type: RemoteJudge
1000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
魔法树
题目描述
输入格式
输出格式
4
0 1
1 2
2 3
4
Add 1 3 1
Query 0
Query 1
Query 2
3
3
2