A list of all the problems as given to contestants of HPC3 for the 2024 competition.
Thanks to Adam Gąsienica-Samek, Yuchong Guo, Saige Briggs, and the 2024 committee for problem moderation.
And to all who submitted problems for HPC3 2024 externally or from within Harvard, we couldn't do this without you.
Note: Problems E and I involve randomness.
To ensure fairness, HPC3 uses randomness seeded for each of the arrays in E and for each piece in I.
This means that while the random elements are unknowable to contestants, the same input will cause the same result.
Problem 0: A + B
— Maximum points: 0
— Problem Statements: English, Español, 中文, أرابيك, Русский, Français.
— Note: Practice problem.
Problem A: Library of Wonders
By Levente Janosi (Hungary)
— Maximum points: 5
— Problem Statements: English, Español, 中文, أرابيك, Русский, Français.
— Erratum: The last example test case is to be ignored.
— Average Score: 4.09 (81.82%)
— Complete Solutions: 186 (67.63%)
Problem B: Power Mail
By María del Pilar Herrera (Spain)
— Maximum points: 15
— Problem Statements: English, Español, 中文, أرابيك, Русский, Français.
— Average Score: 9.59 (63.90%)
— Complete Solutions: 117 (42.54%)
Problem C: 10-Mile Dash
Author chose to remain anonymous
— Maximum points: 25
— Output-Only Problem, no problem statements avalible.
— Average Score: 13.11 (52.47%)
— Complete Solutions: 107 (38.90%)
Problem D: Sleeping Ink Lion
By Seung-Ho Park (South Korea)
— Maximum points: 35
— Output-Only Problem, no problem statements avalible.
— Average Score: 15.90 (45.41%)
— Complete Solutions: 97 (35.27%)
Problem E: Shredded Secrets
By Aurelia Lefèvre (France)
— Maximum points: 40
— Problem Statements: English, Español, 中文, أرابيك, Русский, Français.
— Average Score: 15.60 (38.99%)
— Complete Solutions: 67 (24.36%)
Problem F: Pax Galactica
Author chose to remain anonymous
— Maximum points: 50
— Problem Statements: English, Español, 中文, أرابيك, Русский, Français.
— Average Score: 26.57 (53.15%)
— Complete Solutions: 50 (18.18%)
Problem G: Mantle of Sight
By Klara Zieglar (Germany)
— Maximum points: 55
— Output-Only Problem, no problem statements avalible.
— Average Score: 24.87 (45.22%)
— Complete Solutions: 33 (12.00%)
Problem H: Stellar Predictions
By Saige Briggs (United Kingdom)
— Maximum points: 65
— Output-Only Problem, no problem statements avalible.
— Average Score: 33.42 (51.41%)
— Complete Solutions: 16 (5.81%)
Problem I: King of the Hunt
By Zvezda Králová (Czech Republic)
— Maximum points: 70
— Problem Statements: English, Español, 中文, أرابيك, Русский, Français.
— Erratum: The first input of both subproblems contains an integer L between 1 and 500,000.
— The maximum number of hunt rounds is L, instead of 500,000.
— The values of L for the test cases are 4 and 13, respectively.
— Average Score: 36.92 (52.74%)
— Complete Solutions: 11 (4.00%)
Problem J: Defence Configuration
By Adam Gąsienica-Samek (Poland)
— Maximum points: 75
— Problem Statements: English, Español, 中文, أرابيك, Русский, Français.
— Average Score: 35.31 (47.08%)
— Complete Solutions: 5 (1.81%)
Problem K: Chronos's Iron Wall
By Vishal Tiwari (India)
— Maximum points: 80
— Output-Only Problem, no problem statements avalible.
— Average Score: 40.03 (50.04%)
— Complete Solutions: 7 (2.54%)
Problem L: A Fragile, Bleeding, Web
By Ji-Woon Seo (South Korea)
— Maximum points: 85
— Output-Only Problem, no problem statements avalible.
— Average Score: 27.61 (32.48%)
— Complete Solutions: 2 (0.72%)
Problem M: G-63 Intrusion Mirror
By Bartosz Ławniczak (Poland)
— Maximum points: 100
— Output-Only Problem, no problem statements avalible.
— Average Score: 5.89 (5.89%)
— Complete Solutions: 1 (0.36%)