List of questions
Related questions
Question 20 - Professional Cloud Developer discussion
You are parsing a log file that contains three columns: a timestamp, an account number (a string), and a transaction amount (a number). You want to calculate the sum of all transaction amounts for each unique account number efficiently.
Which data structure should you use?
A.
A linked list
B.
A hash table
C.
A two-dimensional array
D.
A comma-delimited string
Your answer:
0 comments
Sorted by
Leave a comment first