# Difference between revisions of "Casework"

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* [https://artofproblemsolving.com/wiki/index.php/2004_AIME_II_Problems/Problem_4 2004 AIME 2 Problem 4] | * [https://artofproblemsolving.com/wiki/index.php/2004_AIME_II_Problems/Problem_4 2004 AIME 2 Problem 4] | ||

* [https://artofproblemsolving.com/wiki/index.php/2005_AIME_I_Problems/Problem_5 2005 AIME 1 Problem 5] | * [https://artofproblemsolving.com/wiki/index.php/2005_AIME_I_Problems/Problem_5 2005 AIME 1 Problem 5] | ||

− | * [https://artofproblemsolving.com/wiki/index.php/ | + | * [https://artofproblemsolving.com/wiki/index.php/2000_AIME_I_Problems/Problem_5 2000 AIME 1 Problem 5] |

== See also == | == See also == |

## Revision as of 00:10, 7 October 2020

**Casework** is a counting approach that breaks a problem into two or more subproblems (the cases) and adding the result from each case together. While casework is sometimes the most elegant method of solution, it may be considered brute force when a more elegant solution exists.

## Videos

- Casework,Complementary Counting,and OverCounting(PIE) by Sohil Rathi
- AoPS Casework Counting Part 1
- AoPS Casework Counting Part 2