Trees: Is This a Binary Search Tree?

Hacker
Rank
Score
94674
flag of United States
22.386
94674
flag of India
22.386
94674
flag of India
22.386
94674
flag of United States
22.386
94674
flag of Netherlands
22.386
94674
flag of Netherlands
22.386
94674
flag of Malaysia
22.386
94674
flag of India
22.386
94674
flag of Canada
22.386
94674
flag of United States
22.386
94674
flag of United States
22.386
94674
flag of Brazil
22.386
94674
flag of United States
22.386
94674
flag of Canada
22.386
94674
flag of United Kingdom
22.386
94674
flag of India
22.386
94674
flag of Mexico
22.386
94674
flag of India
22.386
94674
flag of India
22.386
94674
flag of Australia
22.386
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