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Discussion of Problem 1630. Talisman

WA 20
Posted by 💻Evgeny Nemtsev [UrFU FT-17]'` 3 Sep 2017 18:54
5 10
1 2
1 3
1 4
1 5
2 3
2 4
2 5
3 4
3 5
4 5
->
Unlucky Petr