Contest link: codeforces.com/contest/1539
My submissions: codeforces.com/submissions/galen_colin/contest/153…

Observe the wonders of early morning rounds.

Fixed E, and there were a few more small bugs, but the overall solution was correct.

Timestamps:
Intro 00:00
A (attempting) 00:28
Switching to B (and solving) 17:35
C (solving) 20:48
A (finally solving) 27:04
D (solving) 33:24
F (solving) 48:01
E (attempting) 1:09:17
Kinda contest review 2:03:03
A (solution) 2:04:12
B (solution) 2:14:13
C (solution) 2:17:49
D (solution) 2:24:35
E (solution) 2:31:00
F (solution) 2:49:04
E WA and more staring at standings 2:58:34