Note 1: This is not the official editorial. I prepared these solutions while testing the problems as a tester before the contest.

Note 2: The video tutorial is for those who prefer learning from videos and want to see implementation tips alongside the problem explanations.

Watch the full video: Video Link

Check out my submission: A (344369578), B (344369585), C (344369588), D (344369598), E (344369602), F (344369606), G (344369610), H (344369616).

Based on your feedback, I changed the video type from premiere to regular.

Please let me know how you prefer this kind of problem-solving video.

Please let me know which style of problem-solving video you prefer.

• Full virtual contest experience: Record everything from the start — reading the problem, thinking aloud, solving, and coding (example).
  → Gives the complete journey of solving a problem, but tends to be quite long.

• Live reasoning after solving on paper: Record the thinking and coding after having a rough solution idea (like in this video).
  → Might include some mistakes or wrong attempts before getting AC.

• Post-solve explanation: First solve and get AC, then record a short and clear video explaining the solution idea and implementation.
  → Concise and focused on insights.