Wayfair

Add Strings

Alert Using Same Key-Card Three or More Times in a One Hour Period

Best Sightseeing Pair

Delete Characters to Make Fancy String

Design A Leaderboard

Group Anagrams

Largest Magic Square

Last Person to Fit in the Bus

Longest Happy String

Longest Increasing Subsequence

Longest Palindromic Substring

Maximum Number of Balloons

Maximum Number of Vowels in a Substring of Given Length

Maximum Product Subarray

Minimum Moves to Reach Target Score