data structures: array, stack,

linear data structures: arrays, stacks, queues, linklist,
nonlinear data structures: tree, trie, heaps, graph, hashtable

BS, BFS, DFS, Tree traversals, sort,
Kruskal's Algorithm
Floyd Warshall Algorithm
Dijkstra's Algorithm
Bellman Ford Algorithm
Kadane's Algorithm
Lee Algorithm
Flood Fill Algorithm
Floyd's Cycle Detection Algorithm
Topological Sorting in a DAG
Union Find Algorithm