Dear everyone,↵
↵
As always, [my screencast and detailed analysis](https://www.youtube.com/watch?v=mcFGF5_d3d0) of problems A–G of [contest:1738] is already uploaded (but still processing for high-quality viewing) on the channel. This time the video is huge _ over five hours!↵
↵
Please watch, enjoy, learn, comment — anything you want!
↵
As always, [my screencast and detailed analysis](https://www.youtube.com/watch?v=mcFGF5_d3d0) of problems A–G of [contest:1738] is already uploaded (but still processing for high-quality viewing) on the channel. This time the video is huge _ over five hours!↵
↵
Please watch, enjoy, learn, comment — anything you want!