#0 - Big O
#1 - Two Pointers
#2 - Sliding Window
#3 - Linked List
#4 - HashMap
#5 - LRU
#6 - Stack, Queue
#7 - Binare Tree, DFS
#8 - Binary Search Tree
#9 - Binary Tree, BFS
#10 - Trie, Autocomplete
#11 - Heap Pt.1
#12 - Heap Pt.2
#13 - Intervals
#14 - Graphs Intro 
#15 - Graphs Workshop (Live Семинар)
#16 - Graphs Workshop 2 (Live семинар)
#17 - Dijkstra
#18 - Topological sort Pt.1
#19 - Topological sort Pt.2
#20 - Backtraking Pt.1
#21 - Backtracking Pt.2
#22 - Dynamic Programming Pt.1
#23 - Dynamic Programming Pt.2