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Generating Combinations

This week I’d like to share my favorite methods for generating combinations of elements. Combinations are O(2^n) so we generally only…

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10 Years of Problem Writing: My Favorite Problems

This June I’m celebrating an anniversary – exactly 10 years since the fateful “Ok, HS SRM 34 is yours” email from…

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10 Useful Design Techniques to Master Visual Hierarchy

I have been registered on Topcoder since June 2011 and started competing in 2013. With no background in design, I just…

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Selfie Day Contest – Win a Topcoder T-shirt!

Did you know that June 21st is Selfie Day! An entire day and holiday dedicated to the art of taking a…

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The Making of a TCO Development Champion – Sky_ is the Limit!

There are developers, there are good developers, and then there are champion developers who are experts at their craft in a…

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10 Years Of Problemwriting: An Interview With Nickolas (Mariia Mykhailova)

Nickolas is a member of Topcoder since 2005. She is a problem writer for Marathon and Algorithm competitions. Her archive includes…

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DS Weekly Challenges: Results

I’ve fallen behind on publishing the results of past Data Science challenges – well, that’s what one gets for running challenges…

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Ask a Member: Building and Deploying an App for Topcoder

We often work directly with members of the Topcoder Community to execute on development and design work for Topcoder. Sometimes, our…

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TCO17 – A Battle for iOS Supremacy!

It’s WWDC week and Apple just did the WWDC17 keynote on Monday, therefore it’s most appropriate we show some iOS love…

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Why Sketching is as Important as Design

A long time ago in elementary school, among the basics areas to study, was drawing. I hated drawing, not only because…

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