Essential algorithms and Data structures

Essential Data structures

• Arrays

• Linked Lists

• Hash maps

• Stacks and Queues

• Heaps

• Trees

• Graphs

Essential Algorithms

• Binary search

• Two pointers

• Sums, Prefix Sums

• Queues and Stacks

• Kth smallest/largest

• Bit manipulations

• Greedy

• Backtracking

• DP

• Tree traversals

• Graph algorithms