There is a contest! | В настоящий момент идёт турнир. Некоторая информация и функции сервера недоступны до его окончания.
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| imesecan | May.28.2016 at 11:27:58 AM | |
| 0 | No, the output of Sample Input 2 is ok.
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| sreka | May.28.2016 at 12:04:46 PM | |
| 1 | Test 1 Input:
5
7
3 1 2 4
3 3 4 5
4 1 2 3 4
4 1 3 4 5
2 3 4
4 2 3 4 5
3 1 3 5
Pattern:
1
3
5
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| sreka | May.28.2016 at 12:09:48 PM | |
| 2 | Sample Input 2 Explanation:
In the first day, 1, 3, 5, 4 learn a new topic (X).
In the second day, 5 teaches to 6 topic X.
In the third day, 6 teaches to 7 and 8 topic X.
In the fourth day, 6 teaches to 2 topic X.
In the fifth day, 2, 6, 8, 1 learn a new topic (Y).
The students who know topic X and Y are 1, 2, 6, 8.
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| imesecan | May.28.2016 at 01:03:34 PM | |
| 3 | Test 2 Input:
10
14
2 1 7
2 4 8
2 1 9
2 4 6
2 1 8
4 2 5 6 10
4 1 2 3 5
2 7 9
2 1 9
7 1 3 4 5 6 8 9
2 7 10
4 5 6 8 9
2 7 9
5 2 4 7 8 10
Pattern:
1
2
4
5
6
7
8
9
10
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