Codeforces Round 729 - All Solutions (A-E2) + Screencast (51st)
Contest link: https://codeforces.com/contest/1542
My submissions: https://codeforces.com/submissions/ga...
Definitely overcomplicated E2, apparently other people had stuff a lot simpler (though, still seemed to have a decent amount of indexing).
(This time, the video's late because it's so long)
Timestamps:
Intro 00:00
A (solving) 00:22
B (solving) 03:20
C (solving) 15:32
D (solving) 27:18
E1 (solving) 45:55
E2 (solving) 1:18:19
A (solution, and some proof strategies) 2:43:02
B (solution) 2:49:24
C (solution, and live implementation) 3:02:21
D (solution) 3:18:59
E1 (solution) 3:29:56
E2 (solution) 3:38:16
Contest review 3:56:08