Hi,
Today I solved the top view problem of Binary tree. As a had studied the algorithm of Vertical traversal of BT yesterday, it was easier for me to solve the Top view question today (Treemap places the best role in this problem).
Finally, I solved all the 'Easy' type problems of BT on HacerRank. What a relief!
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Zhang Wei -
Łukasz Wójcik -
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Vitali Sorenko -
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