Punched cards, 3D printing and d1000000 are fully solved, and Chain reactions is partly solved.
Here are my submissions.
4591st
Pancake deque is fully solved, including the hidden test set.
I managed to solve the first part of the interactive problem, ASeDatAb, with a naive solution: give exactly the same number of 1s that is in the record currently.
Regarding the 2nd challenge, Controlled inflation, the idea came too late: I finished it 20 minutes after the end of the competition. ʘ︵ʘ
It came to my mind that it could be a simplified graph and e.g. Dijkstra's shortest path algorithm can solve the problem, so having inspiration from that, I was able to implement a linear time dynamic programming solution.
Here are my submissions.
2368th
I was able to fully solve the 1st challenge, Letter Blocks. Here are my submissions.