Author Topic: Problem Solving Category- an amazing discovery  (Read 14 times)

Offline mnsalim

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Problem Solving Category- an amazing discovery
« on: April 20, 2017, 06:57:43 PM »
Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems seen at the IOI. Here they are:
Dynamic Programming
Complete Search
Flood Fill
Shortest Path
Recursive Search Techniques
Minimum Spanning Tree
Computational Geometry
Network Flow
Eulerian Path
Two-Dimensional Convex Hull
Heuristic Search
Approximate Search
Ad Hoc Problems
The most challenging problems are Combination Problems which involve a loop (combinations, subsets, etc.) around one of the above algorithms - or even a loop of one algorithm with another inside it. These seem extraordinarily tricky to get right, even though conceptually they are ``obvious''.
Md. Nazmul Hoq