Atcoder Grand Contest 048 Screen Record

Rank 47. I solved the first 3 problems in roughly 30 min and spent the rest of the time fake-solving pD. Though it is weird to put a video of me fake-solve problems 75% of the time, I guess people may want to see how I solve the first 3 problems quickly. Currently, I don't have a camera to record my scratch papers. If I get one, I'll probably record the hand-writing side and slightly discuss what I am thinking during the contest.