Welcome to Biweekly Contest 30! 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:

Reformat Date (3 points)

Range Sum of Sorted Subarray Sums (4 points)

Minimum Difference Between Largest and Smallest Value in Three Moves (5 points)

Stone Game IV (6 points)