2575 . H for Hard

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TopCoder

User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

NTU Preliminary NTU Preliminary 2016

Description

The PDF version of this problem can be downloaded here.

Input Format

Output Format

Sample Input 1

2
1 1 1
1 1
2 3 3
1 1
2 2

Sample Output 1

1
4.5
4.5

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.

eddy

Subtasks

No. Testdata Range Score

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 65536 131072
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