1459 . 團密度

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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

100.0% (13/13)

Submission's AC Ratio

68.0% (17/25)

Tags

ntucpcpc ntucpcpc-2026

Description

題目 PDF 檔在這裡

Input Format

Output Format

Sample Input 1

5 5
1 2
1 3
2 3
1 4
1 5

Sample Output 1

3
1 2 3

Sample Input 2

2 3
1 2
1 2
1 2

Sample Output 2

2
1 2

Sample Input 3

4 4
1 2
2 3
2 3
3 4

Sample Output 3

2
2 3

Hints

Problem Source

Subtasks

No. Testdata Range Score

Testdata and Limits

No. Time Limit (ms) Memory Limit (VSS, KiB) Output Limit (KiB) Subtasks
0 1000 2097152 65536
1 1000 2097152 65536
2 1000 2097152 65536
3 1000 2097152 65536
4 1000 2097152 65536
5 1000 2097152 65536
6 1000 2097152 65536
7 1000 2097152 65536
8 1000 2097152 65536
9 1000 2097152 65536
10 1000 2097152 65536
11 1000 2097152 65536
12 1000 2097152 65536
13 1000 2097152 65536
14 1000 2097152 65536
15 1000 2097152 65536
16 1000 2097152 65536
17 1000 2097152 65536
18 1000 2097152 65536
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