1823: Exclusive-OR

内存限制:128 MB 时间限制:5.000 S
评测方式:文本比较 命题人:
提交:0 解决:0

题目描述

you could down this problem at the URL: http://coder.buct.edu.cn/oj/contest/wuhan2009_final.rar

样例输入 复制

2 6
I 0 1 3
Q 1 0
Q 2 1 0
I 0 2
Q 1 1
Q 1 0
3 3
I 0 1 6
I 0 2 2
Q 2 1 2
2 4
I 0 1 7
Q 2 0 1
I 0 1 8
Q 2 0 1
0 0

样例输出 复制

Case 1:
I don‘t know.
3
1
2

Case 2:
4

Case 3:
7
The first 2 facts are conflicting.