2021
https://www.youtube.com/c/LevelUppp/videos
CodeFestRU - Bartosz Adamczewski - Probabilistic Data Structures RU 0:00 of 40:51
    https://www.youtube.com/watch?v=Swevh9RwfUw
    https://disk.yandex.ru/i/aSajyWYL2tKjfQ
CodeFestRU - Bartosz Adamczewski - Probabilistic Data Structures 0:00 of 39:10
    https://www.youtube.com/watch?v=wion3_AZRyY