Morgan Stanley

3Sum

Best Team With No Conflicts

Best Time to Buy and Sell Stock

Contiguous Array

Copy List with Random Pointer

Count Binary Substrings

Count of Integers

Count of Range Sum

Count Subarrays With Fixed Bounds

Decode Ways

Find Subarrays With Equal Sum

Find the Longest Valid Obstacle Course at Each Position

Find The Original Array of Prefix Xor

First Missing Positive

Generate Parentheses