1086 . Exclusive-OR

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User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

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Description

Problem description is available here.



Please use stdin/stdout, don't read file(s).

Input Format

Output Format

Sample Input 1

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

Sample Output 1

Case 1:
I don't know.
3
1
2

Case 2:
4

Case 3:
7
The first 2 facts are conflicting.

Hints

Problem Source

Migrated from old NTUJ.

Wuhan Regional 2009

Subtasks

No. Testdata Range Score

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 3000 65536 32768
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