I hope you enjoyed the problems! Implementations will be added soon.
UPD: Implementations are added!
Tutorial
Tutorial
1450C1 - Errich-Tac-Toe (Easy Version)
Tutorial
1450C2 - Errich-Tac-Toe (Hard Version)
Tutorial
Tutorial
Tutorial
1450F - The Struggling Contestant
Tutorial
Tutorial
1450H1 - Multithreading (Easy Version)
Tutorial
1450H2 - Multithreading (Hard Version)
Tutorial