Check whether a given sequence is a valid traversal of some ternary undirected tree.
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1558 started
33 silver awards
24 golden awards
Hall of fame:
1
Lazni Mail
Time: 21 hours, 17 minutes
2
Mario Zivic
Time: 21 hours, 25 minutes
3
Davor Sutic
Time: 1 day, 15 hours