Level 2Exercise #45
Parse integer fields
Convert a list of numeric strings to integers without a lambda.
What you’ll practice
This Level 2 exercise focuses on map constructor in the Built-ins curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.
Relevant Python reference: map().
Sample Test Cases
Example #1
Input:
parse_ints(['17','0','-4'])Output:
[17,0,-4]Further Reading
Reference Solution
Reveal Reference Solution
def parse_ints(fields: list[str]) -> list[int]: return list(map(int, fields))Pro Tips & Keyboard Shortcuts
Color Theme
Ctrl + K then T
Open VS Code Color Theme Quick Pick to select from 20 dark and light themes.
Editor SettingsCtrl + K
Open practice settings drawer to toggle line numbers, indenting, font size & hints.
Search MenuCtrl + /
Expand sidebar menu, focus search bar, and highlight search text instantly.
Focus Code Editor
Esc or Ctrl + `
Instantly highlight and focus code editor from anywhere, restoring cursor right where you left off.
Normal ViewEsc
Collapse sidebar and close all popups or settings drawers for clean focus view.