Author: Noah Ó Donnaile


Kattis problem Pivot: Incrementally improving the performance of a python script, until nothing makes sense anymore

I have been doing a lot of competitive programming problems on Kattis lately. It is my favourite online judge, and I have been enjoying my climb up the Irish scoreboard in an attempt to regain my former glory of first place. In particular, today I

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My performance at the Student Battle Dev Season 11

I had a lot of fun yesterday evening competing in the 11th edition of the #battledev competition. I hadn't taken part before, but decided it might be worth checking out what competitions happen beyond Ireland's shores, and a French friend recommended this one. The competition

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In 2018, we finally won the IrlCPC

The Irish Collegiate Programming Contest (IrlCPC) is an annual programming competition hosted in University College Cork. I have attended the IrlCPC before, finishing second in 2016 and third in 2017, delighted both times. This year, there were seven problems on the list, roughly arranged in

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HackTrinity CTF Solutions

This week I took part in the HackTrinity CTF. It was my first CTF, but by the end of the week I managed to get all the flags. I think I may have been the second person to do it :) Following is my solutions to

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Hashcode 2017

Long ago, I meant to write about this. I took part in the Hashcode 2017 online round with Cian Ruane. He did a great write-up of our entry! We came 1st in Ireland, and 164th globally, and had a lot of fun. Go read his

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