Contest link: codeforces.com/contest/1472
My submissions: codeforces.com/submissions/galen_colin/contest/147…

This contest was both great for me (A-D) and terrible (E-G), but I still managed to solve everything, so here are all of the solutions. I didn't do a screencast because most of it was during school, and the risk of doing an early face reveal is too great :)

Timestamps:
Intro 00:00
A 00:59
B 04:00
C 07:51
D 11:03
E 17:34
Trying to prove you can always swap 20:17
Continuing E 28:33
F 34:02
G 46:46