At-Coder M-Solutions Screencast + Commentary

My screencast of https://atcoder.jp/contests/m-solutio... Solutions are available at the end. Timestamps, because they have been heavily suggested: 0:00 - Contest start 0:33 - Problem A 2:24 - Problem B 4:30 - Problem C 10:30 - Problem D 16:55 - Problem E 1:39:22 - Solution to Problem A 1:41:10 - Solution to Problem B 1:42:05 - Solution to Problem C 1:43:53 - Solution to Problem D 1:46:00 - Solution to Problem E + Frustrations at getting java'd