Count the number of elements in an Array

Hacker
Rank
Score
01
flag of United States
01.00
01
flag of Poland
01.00
01
flag of United States
01.00
01
flag of Spain
01.00
01
flag of Thailand
01.00
01
flag of Poland
01.00
01
flag of United States
01.00
01
flag of Latvia
01.00
01
flag of Poland
01.00
01
flag of Hong Kong
01.00
01
flag of India
01.00
01
flag of Poland
01.00
01
flag of Taiwan
01.00
01
flag of Czech Republic
01.00

[deleted]

01
flag of null
01.00
01
flag of United States
01.00
01
flag of United States
01.00
Items per page:
Select...