1645 . Pizza Dream

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TopCoder

User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

NTU Preliminary NTU Preliminary 2012

Description

The PDF version of the problemset can be downloaded here.

Input Format

Output Format

Sample Input 1

1
5 2
1 2 3 4 5
5 1

Sample Output 1

0.200000000

Hints

Info: 本題輸出為浮點數，絕對或相對誤差 1e-6 以下視為正確

Problem Source

Migrated from old NTUJ.

tmt+ferng+dreamoon

Subtasks

No. Testdata Range Score

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 5000 65536 200
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