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Problem A. Trapezoid Counting

Time Limit: 5000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1 Accepted Submission(s): 1

Problem Description

http://acm.hdu.edu.cn/downloads/2018ACMerReunion-Problemset.pdf

Sample Input

4
5
2 3 3 4 3
4
1 5 3 1
4
2 2 3 3
9
3 4 1 4 2 5 3 1 3

Sample Output

Case #1: 5
Case #2: 0
Case #3: 0
Case #4: 73

Source

The ACMer Reunion 2050 Amusement Competition

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