Uploaded December 2019 | Updated September 2026, 3 days ago

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5th place at the end of the contest.
0:01:50 Solved A
0:12:32 Solved B
0:20:11 Solved C
0:25:37 Solved D
0:50:11 Solved F
1:38:22 Solved E

Hopefully, I won't get hacked :)

Update: 3rd place in the end