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Ponder This | January 2004 Challenge. January 2004 <<DecemberJanuaryFebruary>> Ponder This Challenge: This month's puzzle was sent in by Joe Buhler. It came from a SIGCSE meeting via Eric Roberts. A read-only array of length n, with address from 1 to n inclusive, contains entries from the set {1, 2, ..., n-1}. We will post the names of those who submit a correct, original solution!

We invite visitors to our website to submit an elegant solution. If you have any problems you think we might enjoy, please send them in. TopCoder, Inc. | Home of the world's largest development community. Codeforces. AlgoViz.org | The Algorithm Visualization Portal. Red Blob Games. Online Python Tutor - Learn programming by visualizing code execution.

Problets - The Home Page. CodingBat.