ECOO
The Educational Computing Organization of Ontario contest is for high school students in Ontario, Canada. Its official web site is http://www.ecoo.org/ecoocs/.
Problems
http://www.ecoo.org/ecoocs/PastContests.html
Solutions
| Contest | Problem | Comments |
|---|---|---|
| 2005 Boardwide | #1: Fractorials | Trivial, and uses the GCD algorithm. |
| #2: HTPP | Straightforward. | |
| #3: Binary Cipher | Straightforward. | |
| #4: Three letter words | Brute force search. | |
| 2005 Regional (FILES MISSING) | #1: Scrabble | |
| #2: Partitions | ||
| #3: XO Life | ||
| #4: Billiards | ||
| 2005 Final (FILES MISSING) | #1: Longest Chain | |
| #2: Link5 Cipher | ||
| #3: Bugs | ||
| #4: Rook Moves | ||
| 2006 Boardwide | #1: Fibonacci’s Rabbits | Straightforward. |
| #2: Flip Twice Cypher | Straightforward. | |
| #3: Three Letter Words | Straightforward, and uses a clever algorithm for testing words. | |
| #4: Two Robots | Straightforward, uses cross product. | |
| 2006 Regional | #1: Split Code | Trivial. |
| #2: Sum of Squares | Dynamic programming: knapsack problem | |
| #3: Polynomial Path | Too many cases. | |
| #4: Cryptarithm | Brute force search through all permutations. | |
| 2006 Final | #1: Fuel Crisis | Brute force search through all permutations. |
| #2: Blobs | Straightforward. | |
| #3: Tumbledee | Straightforward. | |
| #4: Word Chain | Breadth-first search. |
Links
Last modified: 2007-08-19-Sun
Created: 2007-05-02-Wed