2795 . Card Trick

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User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

ICPC NWERC 2013

Description

The PDF version of this problemset can be downloaded here.
Warn: 本題有 checker

Input Format

Output Format

Sample Input 1

5 2
2 3 5 3 Q
1 1
A
1 2
A
1 10
A
6 1
2 2 2 2 2 2
7 1
2 2 2 2 2 2 2
3 10
10 J K

Sample Output 1

0.4871377757023325348071573
0.1000000000000000000000000
0.1000000000000000000000000
0.1748923357025314239697490
0.5830713210321767445117468
0.6279229611115749556280350
0.3346565827603272001891974

Hints

Problem Source

Migrated from old NTUJ.

Subtasks

No. Testdata Range Score

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 262144 131072
1 1000 262144 131072
2 1000 262144 131072
3 1000 262144 131072
4 1000 262144 131072
5 1000 262144 131072
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