This year I found myself to be very much interested into algorithm challenges and the format of Codility seemed most suitable for me. I did total of nine challenges this year and got nine Golden Awards.
Here are all of them listed and you can check all the solutions, certificates and blog articles. Feel free to ask me questions if you need additional explanation about some of the solutions.
Digital Gold
Golden Award Certificate: https://app.codility.com/cert/view/certKXQCWN-5G8AAHUX3RRYC72W/
Blog: https://dotjord.wordpress.com/2019/01/03/golden-award-for-dividing-the-kingdom/
Selenium 2018
Golden Award Certificate: https://app.codility.com/cert/view/cert3UV48P-ZP97NGYPSNFD9F4M/
Blog: https://dotjord.wordpress.com/2018/09/17/those-who-cant-farm-make-farmland-fields-algorithms/
Zinc 2018
Golden Award Certificate: https://app.codility.com/cert/view/certCRZ23G-KQZKT56322TWNXSC/
Galium 2018
Golden Award Certificate: https://app.codility.com/cert/view/certNKRU6Q-73T56M3Q3H7DP2MS/
Blog: https://dotjord.wordpress.com/2018/07/20/codility-news-7th-golden-award-this-year-for-me/
Cuprum 2018
Golden Award Certificate: https://app.codility.com/cert/view/cert8WYZQA-7R5FN4TAGRBH58GA/
Silver Award Certificate: https://app.codility.com/cert/view/certR4HTPE-MA3JG8B89NDTAWY6/
Blog: https://dotjord.wordpress.com/2018/05/31/a-story-about-a-real-struggle-with-an-algorithm/
Cutting Complexity
Golden Award Certificate: https://app.codility.com/cert/view/certU7GKUZ-TFNME3DC4HY8W3BU/
Blog: https://dotjord.wordpress.com/2018/05/03/four-in-a-row-golden-award-for-cutting-complexity-challenge/
Nickel 2018
Golden Award Certificate: https://app.codility.com/cert/view/certRT68XA-7XEDCH4N6V94KHQR/
Blog: https://dotjord.wordpress.com/2018/03/17/golden-hat-trick-another-award-for-my-nickel-2018-solution/
Cobaltum 2018
Golden Award Certificate: https://app.codility.com/cert/view/cert6PAKVW-5HTQ93PX9GFX92VA/
Blog: https://dotjord.wordpress.com/2018/03/04/second-codility-challenge-second-golden-award-for-me-this-year/
Ferrum 2018
Golden Award Certification: https://app.codility.com/cert/view/cert2MJACM-W2S7YPHFKARNRGRE/
Silver Award Certification: https://app.codility.com/cert/view/certR3X67E-GJ8RN4VEVBEKUF85/
Blog: https://dotjord.wordpress.com/2018/02/19/golden-award-for-my-ferrum-2018-solution/
* And a bonus one, the hardest I ever had was this one from 2017 but unfortunately missed the deadline
Chromium 2017
Results Score https://app.codility.com/demo/results/trainingFRHEY5-HCU/
Blog https://dotjord.wordpress.com/2017/10/26/lazy-propagation-segment-tree-with-c/
