Trees: Is This a Binary Search Tree?

Hacker
Rank
Score
111310
flag of United States
09.231
111310
flag of India
09.231
111310
flag of United States
09.231
111310
flag of India
09.231
111310
flag of United States
09.231
111310
flag of United States
09.231
111310
flag of India
09.231
111310
flag of Turkey
09.231
111310
flag of Chile
09.231
111310
flag of United States
09.231
111310
flag of United States
09.231
111310
flag of United States
09.231
111310
flag of United Kingdom
09.231
111310
flag of India
09.231
111310
flag of United States
09.231
111310
flag of United States
09.231
111310
flag of Korea, Republic of
09.231
111310
flag of India
09.231
111310
flag of Hong Kong
09.231
111310
flag of India
09.231
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