---
slug: /silver/containers
title: "Containers"
author: Unknown
order: 2
prerequisites: 
 - 
     - Bronze - Containers
---

 Containers from C++ standard template library (STL)
   - CPH 4
   - Linear
     - Queues / Deques
     - C++ Lists?
     - Linked List
     - Stacks
   - Log
     - Priority Queues
     - BST / TreeSet / TreeMap (Python doesn’t have log n map)
     - Sets / Maps
     - Multiset (F FOR JAVA) (just teach a workaround or smthn ig) TreeMap<value,numoccrances> (erase by value pitfall)
     - Custom comparator (prerequisite for basically all silver topics in Java)
   - HashSets / HashMaps
   - ex?

<!-- END DESCRIPTION -->

(from my github)

  * Types
    * Set, Multiset, Unordered Set
    * Map, Unordered Map (Hashmap)
      * see STL demo
    * Queue, Deque, Linked List
    * Priority Queue (Heap)
    * Vector
    * Stack
  * Tutorial
    * CPH (4, Data Structures)
    * [C++ Reference](http://www.cplusplus.com/reference/stl/)
    * [CPC.2](https://github.com/SuprDewd/T-414-AFLV/tree/master/02_data_structures)
  * Problems (sorted by length)
    * [Beautiful Triplets](https://www.hackerearth.com/practice/algorithms/greedy/basics-of-greedy-algorithms/practice-problems/algorithm/mancunian-and-beautiful-triplets-30968257/) [](54)
    * [Polycarp's Phone Book](http://codeforces.com/contest/860/problem/B) [](56)
    * [Jury Marks](http://codeforces.com/contest/831/problem/C) [](67)
    * [Mahmoud & Ehab & Function](http://codeforces.com/contest/862/problem/E) [](74)
    * [Karen & Cards](http://codeforces.com/contest/815/problem/D) [](86)
    * [Tournament](http://codeforces.com/contest/878/problem/C) [](106)


[Blowing up Unordered Map](https://codeforces.com/blog/entry/62393)
https://docs.google.com/document/d/1HaqUhVB2Ou3ZK4WRjHd738nof4yvLGfrjZFkCxIQP1A/edit?usp=sharing