Compute Book and Page Totals | Dataford Interview Questions

A file contains lines like '157,Kelly,a wrinkle in time,50' (reader ID, name, book name, number of pages). Fetch/download the file and calculate the total number of books and the total number of pages (e.g. 'Book count: 4', 'Page count: 850').

Asked in the Karat programming round stage. One of 3 programming questions; shell not allowed.

Implement summarize_reading_file(lines). The downloaded file is provided as a list of nonempty strings, one record per line. Return [book_count, page_count]. Each record's final comma-separated field is the integer page count, and book names may contain commas.

Constraints

0 <= len(lines) <= 1000
Each nonempty line has a valid integer page count in its final comma-separated field
Page counts are nonnegative
Book names may contain commas
Input lines are already available to the function after download

Function Signature

def summarize_reading_file(lines):

Your question is Compute Book and Page Totals. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Asked in the Karat programming round stage. One of 3 programming questions; shell not allowed.

Constraints

0 <= len(lines) <= 1000
Each nonempty line has a valid integer page count in its final comma-separated field
Page counts are nonnegative
Book names may contain commas
Input lines are already available to the function after download

Function Signature

def summarize_reading_file(lines):

Your question is Compute Book and Page Totals. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.