PHP Architect · Vol 21, Issue 12 · December 2022
PHP Puzzles: Sticker Swapping
by Oscar Merida
The FIFA World Cup wraps up this month. One thing many fans worldwide do in the months leading up to the tournament is to fill out sticker albums with each team’s roster. Completing an album, short of spending a ton of excess money, involves trading with other collectors. A common technical interview question is to find the common characters in a string or the common elements in multiple arrays. Let’s take a look at how to approach such a problem.
The full article is in PHP Architect Vol 21, Issue 12. Subscribe to read it and every new issue.
