1. Think paper

    Thinking using a computer is hard. First, a computer is full of distractions, but let's say we can eliminate those. Second, using the conventional input such as mouse and a keyboard, anything more complex than a character or a mouse click is difficult to communicate to the computer. Where's the …

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  2. Minimum Coin Exchange

    In this post I solve the Minimum Coin Exchange problem programmatically using Haskell. I will compare the performance of the naive implementation to that using dynamic programming.

    The problem

    The minimum coin exchange problem is generally asked: if we want to make change for \(N\) cents, and we have infinite …

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  3. Knowing Algorithms

    The other day I got a question from a colleague: Do you know an algorithm for this problem of ... details...details? The exact the problem description is not important. It was a well defined problem which totally made sense. I felt that there must be an algorithm for it, but …

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  4. Concurrency Patterns

    In this post I'm replicating in Haskell some of the examples from the talk Go Concurrency Patterns by Rob Pike. In the talk Pike explains how Go's built-in concurrency primitives can help writing concurrent code. I was curious to see how the presented examples would look in Haskell, a language …

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  5. Morat-Fribourg 2017

    Egyéni csúcs! Idén sikerült a 2012-es időnél fél perccel gyorsabbat futni. Valószínű, hogy a versenytáv kicsit változott, hiszen a 2012-es tempó gyorsabb volt, mint az idei. Ez a lényegen nem változtat: jól esik a versenyzés! És alább szokás szerint az eddigi időeredmények:

    2017: 17,450 km 1:17.13,6 …

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  6. 20km de Lausanne 2017

    Tökéletes idő, jól eső futás, közepes eredménnyel. A 43.36-os első 10km-t egy 45.28-as második követi.

    Az eddigi versenyek eredményei:

    2017: 20 km 1:29.49 (4.27 min/km)
    2016: 20 km 1:29.01 (4.29 min/km)
    2015: 20 km 1:27.01 (4.21 min …

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  7. Swiss Snow Walk and Run 2017

    As a nice apetizer for the year we signed up for a snow race in Arosa. Since I had never run a half-marathon in snow I had no reference point what time to expect. I took the race easy, enjoyed the scenery and the frosty weather. Despite the winter conditions …

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