Is This a Binary Search Tree?

Hacker
Rank
Score
100459
flag of United States
00.00
100459
flag of United States
00.00
100459
flag of India
00.00
100459
flag of United States
00.00
100459
flag of India
00.00
100459
flag of Turkey
00.00
100459
flag of United States
00.00
100459
flag of India
00.00
100459
flag of China
00.00
100459
flag of Australia
00.00
100459
flag of India
00.00
100459
flag of India
00.00
100459
flag of India
00.00
100459
flag of United States
00.00
100459
flag of Thailand
00.00
100459
flag of Russian Federation
00.00
100459
flag of Singapore
00.00
100459
flag of United States
00.00
100459
flag of Vietnam
00.00
100459
flag of India
00.00
Items per page:
Select...