Trees: Is This a Binary Search Tree?

Hacker
Rank
Score
01
flag of United States
30.00
01
flag of Morocco
30.00
01
flag of United States
30.00
01
flag of United States
30.00
01
flag of United States
30.00
01
flag of United States
30.00
01
flag of Brazil
30.00
01
flag of United States
30.00
01
flag of United States
30.00
01
flag of United States
30.00
01
flag of United States
30.00
01
flag of United States
30.00
01
flag of United Kingdom
30.00
01
flag of Germany
30.00
01
flag of United States
30.00
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