466 . 配對遊戲

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女兒走在書店，指著一本書大喊「爸爸！這個名字我好像有看過！」我看到他指的名字“八奈見杏菜”不禁笑了笑，指著配偶欄說道「這是媽媽的名字，以後要記清楚喔」

User's AC Ratio

90.5% (19/21)

Submission's AC Ratio

45.1% (23/51)

Tags

ytp ytp-junior ytp-2024

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

3 1
4 5 1
2 6 3

Sample Output 1

9.675510736134259

Sample Input 2

5 2
1 1 1 1 1
1 1 1 1 1

Sample Output 2

10.000000000000000

Hints

Problem Source

YTP 2024 國中組初賽 p6

Subtasks

No. Testdata Range Constraints Score
1 0~1 範例測資 0
2 0~23 無額外限制 20

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 262144 65536 1 2
1 1000 262144 65536 1 2
2 1000 262144 65536 2
3 1000 262144 65536 2
4 1000 262144 65536 2
5 1000 262144 65536 2
6 1000 262144 65536 2
7 1000 262144 65536 2
8 1000 262144 65536 2
9 1000 262144 65536 2
10 1000 262144 65536 2
11 1000 262144 65536 2
12 1000 262144 65536 2
13 1000 262144 65536 2
14 1000 262144 65536 2
15 1000 262144 65536 2
16 1000 262144 65536 2
17 1000 262144 65536 2
18 1000 262144 65536 2
19 1000 262144 65536 2
20 1000 262144 65536 2
21 1000 262144 65536 2
22 1000 262144 65536 2
23 1000 262144 65536 2
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