(en) Ágnes Erdősné Németh et László Zsakó, «Grading Systems for Algorithmic Contests», Olympiads in Informatics, vol.18, no1, , p.159-166 (DOI10.15388/ioi.2018.13, lire en ligne).
(en) Ágnes Erdősné Németh et László Zsakó, «Grading Systems for Algorithmic Contests», Olympiads in Informatics, vol.18, no1, , p.159-166 (DOI10.15388/ioi.2018.13, lire en ligne).
[vidéo][Youtube] «Difference between HackerRank, LeetCode, Topcoder and Codeforces», à 1:45 : «Difference between HackerRank, LeetCode, Topcoder and Codeforces: "Topcoder and Codeforces is a website that's typically used when preparing for actual competitive programming contests"»