Welcome to Weekly Contest 253! Feel free to share and post your contest experience here!

You can also view the rankings for the contest here.

Links to the individual problems are included below:

Check If String Is a Prefix of Array (3 points)

Remove Stones to Minimize the Total (4 points)

Minimum Number of Swaps to Make the String Balanced (5 points)

Find the Longest Valid Obstacle Course at Each Position (6 points)