What is a list of data structures that a competitive programmer must know?

linked list is the most known data structure a programmer known

The list varries from knowing basic arrays to complicated B+ tree. That inclose many data strcuctures in between each with its pros and cons and proper application like

Stack, Queue,List,Link list,Trees,Hash and Graphs

Follwing data structures must be known by a competeive programmer:

1. Linked List

2. Tree

3. Array

4. Queue

Furthermore, soting and searching techniques should be commanded by a programmer.

1. Arrays
2. Stacks
3. Queues
4. Linked Lists
5. Trees
6. Graphs
7. Tries
8. Hash Tables

A competitive programmer must know all fundamental data structures such as arrays, stacks, queues, linked lists, trees, graphs etc.

it doesn't matter which data structure you know or not the only aim of any competitive programmer is to get the desired out as fast as possible.

Must know that : Stack ,Array, Queue , Tree

programmer's data structures: Arries, lists, trees

Binary Trees

Graph Array,

Hash Table,

Linked List.

1. ARRAY
2. LINKED LIST
3. TREE
4. GRAPH
5. STACK
6. QUEUE 

and should have relevant knowledge about sorting and searching Techniques and their time complexities