NTUCPC Challenge! #1 題解公開！ 連結
IOIC 2025 題目已公開！ 連結
程式解題社網站 程式解題社網站上線了！
Rejudge 公告 23 已加強測資並 rejudge

Submit

Status

Discussion / Solution

Ranklist

Back to Problems List

TopCoder

User's AC Ratio

NaN% (0/0)

Submission's AC Ratio

NaN% (0/0)

Tags

npsc npsc-junior npsc-2019

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

2 1
0 0
1 0

Sample Output 1

0.0

Sample Input 2

2 2
0 0
1 0

Sample Output 2

0.5

Hints

Problem Source

NPSC 2019 國中組決賽 pA

Subtasks

No.	Testdata Range	Constraints	Score
1	0~1	範例測資	0
2	0~30	無額外限制	100

Testdata and Limits

No.	Time Limit (ms)	Memory Limit (VSS, KiB)	Output Limit (KiB)	Subtasks
0	5000	1048576	1048576	1 2
1	5000	1048576	1048576	1 2
2	5000	1048576	1048576	2
3	5000	1048576	1048576	2
4	5000	1048576	1048576	2
5	5000	1048576	1048576	2
6	5000	1048576	1048576	2
7	5000	1048576	1048576	2
8	5000	1048576	1048576	2
9	5000	1048576	1048576	2
10	5000	1048576	1048576	2
11	5000	1048576	1048576	2
12	5000	1048576	1048576	2
13	5000	1048576	1048576	2
14	5000	1048576	1048576	2
15	5000	1048576	1048576	2
16	5000	1048576	1048576	2
17	5000	1048576	1048576	2
18	5000	1048576	1048576	2
19	5000	1048576	1048576	2
20	5000	1048576	1048576	2
21	5000	1048576	1048576	2
22	5000	1048576	1048576	2
23	5000	1048576	1048576	2
24	5000	1048576	1048576	2
25	5000	1048576	1048576	2
26	5000	1048576	1048576	2
27	5000	1048576	1048576	2
28	5000	1048576	1048576	2
29	5000	1048576	1048576	2
30	5000	1048576	1048576	2

Submit