2933 . Let’s PK!

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User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

NTU PK NTU PK 2017

Description

The PDF version of this problemset can be downloaded here.
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Input Format

Output Format

Sample Input 1

2
2 3 2
1 2
2 3
1 4
4 3 2
1 3
1 6
2 4

Sample Output 1

0.75
0.0

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 65536 131072
1 1000 65536 131072
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