contest_id stringlengths 12 46 | gold_cutoff float64 17.4 850 | silver_cutoff float64 17.4 750 | bronze_cutoff float64 17 750 | division stringclasses 4
values | contestants_ranking stringlengths 2 450k | date stringdate 2022-12-15 00:00:00 2025-04-29 00:00:00 ⌀ | num_contestants int64 0 1.17k | problems stringlengths 58 510 |
|---|---|---|---|---|---|---|---|---|
APIO-2023-contest | 236 | 191 | 145 | Division 2 | [{"Rank": 1, "Contestant": "Chen Xinyang", "Country": "China", "cyberland": 100, "sequence": 100, "abc": 66, "Total": 266, "Medal": "Gold", "CF_Rating": null}, {"Rank": 1, "Contestant": "Chen Yihan", "Country": "China", "cyberland": 100, "sequence": 100, "abc": 66, "Total": 266, "Medal": "Gold", "CF_Rating": null}, {"R... | 2023-05-20 | 218 | ["APIO-2023-contest-sequence", "APIO-2023-contest-abc", "APIO-2023-contest-cyberland"] |
APIO-2024-contest | 200 | 105 | 110 | Division 2 | [{"Rank": 1, "Contestant": "1", "Country": "China", "september": 100, "train": 100, "show": 100, "Total": 300, "CF_Rating": null, "Recalculated_Total": 200}, {"Rank": 1, "Contestant": "2", "Country": "China", "september": 100, "train": 100, "show": 100, "Total": 300, "CF_Rating": null, "Recalculated_Total": 200}, {"Ran... | 2024-05-18 | 92 | ["APIO-2024-contest-september", "APIO-2024-contest-train"] |
BOI-2023-contest | 365 | 283 | 203 | Division 2 | [{"Rank": 1, "Contestant": "Adam G\u0105sienica-Samek", "Country": "Poland", "Day 1": 244, "Day 2": 266, "Total": 510, "Medal": "Gold", "CF_Rating": 2718.0}, {"Rank": 2, "Contestant": "Ansis Gustavs Andersons", "Country": "Latvia", "Day 1": 198, "Day 2": 246, "Total": 444, "Medal": "Gold", "CF_Rating": 2190.0}, {"Rank"... | 2023-04-28 | 72 | ["BOI-2023-contest-astronomer", "BOI-2023-contest-staringcontest", "BOI-2023-contest-tycho", "BOI-2023-contest-minequake", "BOI-2023-contest-mineraldeposits", "BOI-2023-contest-sequence"] |
BOI-2024-contest | 415 | 262 | 145 | Division 2 | [{"Rank": 1.0, "Contestant": "Adam G\u0105sienica-Samek", "Country": "Poland", "jobs": 100, "portal": 100, "trains": 100, "fire": 100, "tiles": 100, "wall": 100, "Total": 600, "Medal": "Gold", "CF_Rating": 2896.0}, {"Rank": 2.0, "Contestant": "Veikko Heikkinen", "Country": "Finland", "jobs": 100, "portal": 100, "trains... | 2024-05-03 | 76 | ["BOI-2024-contest-jobs", "BOI-2024-contest-portal", "BOI-2024-contest-trains", "BOI-2024-contest-fire", "BOI-2024-contest-tiles", "BOI-2024-contest-wall"] |
BOI-2025-contest | 317 | 241 | 162 | Division 1 | [{"Rank": 1, "Contestant": "Daniel Weber", "Country": "Israel", "BOI": 100.0, "TOU": 100.0, "TOW": 100.0, "DEV": 100.0, "EXP": 100.0, "GCD": 100.0, "Total": 600, "Medal": "Gold", "CF_Rating": 2276.0}, {"Rank": 2, "Contestant": "Micha\u0142 Wolny", "Country": "Poland", "BOI": 100.0, "TOU": 76.0, "TOW": 84.0, "DEV": 31.0... | 2025-04-29 | 78 | ["BOI-2025-contest-boi", "BOI-2025-contest-tou", "BOI-2025-contest-tow", "BOI-2025-contest-dev", "BOI-2025-contest-exp", "BOI-2025-contest-gcd"] |
CCO-2023-Canadian_Computing_Competition_Junior | 39.85 | 39.85 | 39.85 | Division 4 | [{"Contestant": "Rank_1", "Total": 75, "Rank": 1.0, "j1": 13.41, "j2": 12.21, "j3": 8.68, "s1j4": 4.79, "j5": 0.76}, {"Contestant": "Rank_131", "Total": 72, "Rank": 131.0, "j1": 13.41, "j2": 12.21, "j3": 8.68, "s1j4": 4.79, "j5": 0.76}, {"Contestant": "Rank_133", "Total": 71, "Rank": 133.0, "j1": 13.41, "j2": 12.21, "j... | 2023-02-15 | 67 | ["CCO-2023-Canadian_Computing_Competition_Junior-j1", "CCO-2023-Canadian_Computing_Competition_Junior-j2", "CCO-2023-Canadian_Computing_Competition_Junior-j3", "CCO-2023-Canadian_Computing_Competition_Junior-s1j4", "CCO-2023-Canadian_Computing_Competition_Junior-j5"] |
CCO-2023-Canadian_Computing_Competition_Senior | 17.44 | 17.44 | 17.44 | Division 4 | [{"Contestant": "Rank_1", "Total": 75, "Rank": 1, "s1j4": 11.06, "s2": 4.26, "s3": 1.56, "s4": 0.4, "s5": 0.16}, {"Contestant": "Rank_9", "Total": 67, "Rank": 9, "s1j4": 11.06, "s2": 4.26, "s3": 1.56, "s4": 0.4, "s5": 0.16}, {"Contestant": "Rank_13", "Total": 63, "Rank": 13, "s1j4": 11.06, "s2": 4.26, "s3": 1.56, "s4":... | 2023-02-15 | 61 | ["CCO-2023-Canadian_Computing_Competition_Senior-s1j4", "CCO-2023-Canadian_Computing_Competition_Senior-s2", "CCO-2023-Canadian_Computing_Competition_Senior-s3", "CCO-2023-Canadian_Computing_Competition_Senior-s4", "CCO-2023-Canadian_Computing_Competition_Senior-s5"] |
CCO-2023-Canadian_Computing_Olympiad | 79 | 55 | 24 | Division 2 | [{"Rank": 1, "Contestant": "BALINT ROSZA", "d1p1": 25.0, "d1p2": 25.0, "d1p3": 13.0, "d2p1": 25.0, "d2p2": 11.0, "d2p3": 25.0, "Total": 124, "medal": "gold", "Country": null}, {"Rank": 2, "Contestant": "RYAN BAI", "d1p1": 25.0, "d1p2": 25.0, "d1p3": 22.0, "d2p1": 25.0, "d2p2": 9.0, "d2p3": 10.0, "Total": 116, "medal": ... | 2023-05-29 | 18 | ["CCO-2023-Canadian_Computing_Olympiad-d1p1", "CCO-2023-Canadian_Computing_Olympiad-d1p2", "CCO-2023-Canadian_Computing_Olympiad-d1p3", "CCO-2023-Canadian_Computing_Olympiad-d2p1", "CCO-2023-Canadian_Computing_Olympiad-d2p2", "CCO-2023-Canadian_Computing_Olympiad-d2p3"] |
CCO-2024-Canadian_Computing_Competition_Junior | 39.77 | 39.77 | 39.77 | Division 4 | [{"Contestant": "Rank_1", "Total": 75, "Rank": 1, "j1": 13.6, "j2": 11.72, "j3": 9.3, "j4": 3.25, "j5": 1.9}, {"Contestant": "Rank_199", "Total": 72, "Rank": 199, "j1": 13.6, "j2": 11.72, "j3": 9.3, "j4": 3.25, "j5": 1.9}, {"Contestant": "Rank_214", "Total": 71, "Rank": 214, "j1": 13.6, "j2": 11.72, "j3": 9.3, "j4": 3.... | 2024-02-21 | 74 | ["CCO-2024-Canadian_Computing_Competition_Junior-j1", "CCO-2024-Canadian_Computing_Competition_Junior-j2", "CCO-2024-Canadian_Computing_Competition_Junior-j3", "CCO-2024-Canadian_Computing_Competition_Junior-j4", "CCO-2024-Canadian_Computing_Competition_Junior-j5"] |
CCO-2024-Canadian_Computing_Competition_Senior | 26.78 | 26.78 | 26.78 | Division 4 | [{"Contestant": "Rank_1", "Total": 75, "Rank": 1, "s1": 13.73, "s2": 10.68, "s3": 1.65, "s4": 0.46, "s5": 0.26}, {"Contestant": "Rank_7", "Total": 72, "Rank": 7, "s1": 13.73, "s2": 10.68, "s3": 1.65, "s4": 0.46, "s5": 0.26}, {"Contestant": "Rank_10", "Total": 64, "Rank": 10, "s1": 13.73, "s2": 10.68, "s3": 1.65, "s4": ... | 2024-02-21 | 61 | ["CCO-2024-Canadian_Computing_Competition_Senior-s1", "CCO-2024-Canadian_Computing_Competition_Senior-s2", "CCO-2024-Canadian_Computing_Competition_Senior-s3", "CCO-2024-Canadian_Computing_Competition_Senior-s4", "CCO-2024-Canadian_Computing_Competition_Senior-s5"] |
CCO-2024-Canadian_Computing_Olympiad | 88 | 53 | 17 | Division 3 | [{"Rank": 1, "Contestant": "BALINT ROZSA", "d1p1": 25, "d1p2": 25, "d1p3": 9, "d2p1": 22, "d2p2": 13, "d2p3": 25, "Total": 106, "medal": "gold", "Country": "Canada"}, {"Rank": 2, "Contestant": "RYAN BAI", "d1p1": 25, "d1p2": 12, "d1p3": 13, "d2p1": 25, "d2p2": 25, "d2p3": 5, "Total": 105, "medal": "gold", "Country": "C... | 2024-05-27 | 18 | ["CCO-2024-Canadian_Computing_Olympiad-d1p1", "CCO-2024-Canadian_Computing_Olympiad-d1p2", "CCO-2024-Canadian_Computing_Olympiad-d1p3", "CCO-2024-Canadian_Computing_Olympiad-d2p1", "CCO-2024-Canadian_Computing_Olympiad-d2p2", "CCO-2024-Canadian_Computing_Olympiad-d2p3"] |
CEOI-2023-contest | 275 | 225 | 190 | Division 1 | [{"Rank": 1, "Contestant": "Luca Perju-Verzotti", "Country": "Romania", "light": 100, "grading-server": 45, "balance": 100, "trade": 50, "incursion": 100, "avoid": 53, "Total": 448, "CF_Rating": 2681.0, "Recalculated_Total": 348}, {"Rank": 2, "Contestant": "Elazar Koren", "Country": "Israel", "light": 100, "grading-ser... | 2023-08-13 | 48 | ["CEOI-2023-contest-grading-server", "CEOI-2023-contest-light", "CEOI-2023-contest-balance", "CEOI-2023-contest-trade", "CEOI-2023-contest-avoid"] |
CEOI-2024-contest | 475 | 371.47 | 259.05 | Division 2 | [{"Rank": 1, "Contestant": "Yoav Shamay", "Country": "Israel", "Total": 565.0, "Medal": "gold", "CF_Rating": 2402.0}, {"Rank": 2, "Contestant": "Istv\u00e1n \u00c1d\u00e1m Moln\u00e1r", "Country": "Hungary", "Total": 565.0, "Medal": "gold", "CF_Rating": 2379.0}, {"Rank": 3, "Contestant": "Alon Tanay", "Country": "Israe... | 2024-06-24 | 56 | ["CEOI-2024-contest-covid", "CEOI-2024-contest-battle", "CEOI-2024-contest-editor", "CEOI-2024-contest-toy", "CEOI-2024-contest-stations", "CEOI-2024-contest-sprinklers"] |
End of preview. Expand in Data Studio
LiveOIBench Contestants
LiveOIBench consists of 403 coding problems collected directly from the official websites of 72 competitions across 14 renowned Informatics Olympiads, focusing on contests held from 2023 onward. We collect all the offical test cases, human contestant ranking results, and contestant Codeforces profiles.
Usage
Please see this Github repository for downloading and processing the dataset.
Files
data/contest_results.parquet– contest‑level table containing medal thresholds and participant rankings.
Schema
Each row in contest_results.parquet has the following fields:
contest_id: Identifier for the contest, typically of the form<COMPETITION>-<YEAR>-<ROUND>.gold_cutoff: Lowest total score that received a gold medal in this contest.silver_cutoff: Lowest total score that received a silver medal.bronze_cutoff: Lowest total score that received a bronze medal.division: Division label for the contest (for example"Division 1","Division 2"), when applicable.contestants_ranking: JSON‑encoded list of per‑contestant records. Each record contains ranking information such as:Rank(integer rank within the contest).Contestant(name or identifier).Country(country or team).- Per‑problem scores (one column per problem code).
Total(aggregate contest score).Medal(medal type or participation status).CF_Rating(optional external rating when available).
date: Contest date.num_contestants: Number of contestants included in the ranking for that contest.problems: JSON‑encoded list of problem identifiers appearing in the contest, typically matchingproblem_idvalues from LiveOIBench.
License
This project is licensed under CC-BY-4.0. Please respect the original contest rules and attribution when using the problems.
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