Download them: se2020_Practice.
Here are the statements of the 2020 ICPC North America Championship.
And, here are some Problem solution outlines.
A: Another Coin Weighing Problem
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data | submissions | ||||
B: Mini Battleship
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data | submissions | ||||
C: Bomas
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data | submissions | ||||
D: All Kill
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data | submissions | ||||
E: Grid Guardian
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data | submissions | ||||
F: Hopscotch
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data | submissions | ||||
G: ICPC Camp
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data | submissions | ||||
H: Letter Wheels
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data | submissions | ||||
I: Editing Explosion
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data | submissions | ||||
J: Lunchtime Name Recall
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data | submissions | ||||
K: Rooted Subtrees
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data | submissions | ||||
L: Tomb Raider
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data | submissions |
Here are the statements of the 2019 SER D2 Problems.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||
---|---|---|---|---|---|---|
Balanced Animals
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animals_data | animals_submission | ||||
Carryless Square Root
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carryless_data | carryless_submissions | ||||
Checkerboard
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checkerboard_data | checkerboard_submissions | ||||
From A to B
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atob_data | atob_submissions | ||||
Elven Efficiency
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elven_data | elven_submissions | ||||
Even or Odd
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evenorodd_data | evenorodd_submissions | ||||
Glow ,Pixel, Glow!
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glowpixel_data | glowpixel_submissions | ||||
Jumping Path
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jumping_data | jumping_submissions | ||||
Levenshtein
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levenshtein_data | levenshtein_submissions | ||||
Rainbow Strings
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rainbow_data | rainbow_submissions | ||||
ReMorse
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remorse_data | remorse_submissions |
Here are the statements of the 2019 SER D1 Problems.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||
---|---|---|---|---|---|---|
Carryless Square Root
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carryless_data | carryless_submissions | ||||
Computer Cache
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cache_data | cache_submissions | ||||
Elven Efficiency
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elven_data | elven_submissions | ||||
Swap Free
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swapfree_data | swapfree_submissions | ||||
Fixed Point Permutations
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fixedpoint_data | fixedpoint_submissions | ||||
Interstellar Travel
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interstellar_data | interstellar_submissions | ||||
Jumping Path
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jumping_data | jumping_submissions | ||||
Levenshtein
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levenshtein_data | levenshtein_submissions | ||||
Maze Connect
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maze_data | maze_submissions | ||||
One of Each
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oneofeach_data | oneofeach_submissions | ||||
Windmill Pivot
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windmill_data | windmill_submissions |
Here are the statements of the 2019 NAIPC Problem Set.
And, here is the data and judges’ reference solutions. There were three divisions, Invitational (Inv), and two Open (Opn USA/World). Also, the next day, the Russian Open Cup (Cup) series of contests used this problem set for their Grand Prix of America.
You can check out the results of the NAIPC and Open Cup contests.
Problem | Judge Data | Programs | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A: Piece of Cake
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data | submissions | ||||||||||||
B: Busy Board
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data | submissions | ||||||||||||
C: Cost of Living
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data | submissions | ||||||||||||
D: It’s a Mod, Mod, Mod, Mod World
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data | submissions | ||||||||||||
E: Monotony
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data | submissions | ||||||||||||
F: Heaps of Fun
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data | submissions | ||||||||||||
G: Intersecting Rectangles
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data | submissions | ||||||||||||
H: Rocket Powered Hovercraft
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data | submissions | ||||||||||||
I: Cutting Strings
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data | submissions | ||||||||||||
J: Subsequences in Substrings
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data | submissions | ||||||||||||
K: Knight of the Tarot Cards
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data | submissions | ||||||||||||
L: Planes, Trains, but not Automobiles
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data | submissions | ||||||||||||
M: XOR Sequences
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data | submissions |
Here are the statements of the SER 2018 Problems D1.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||
---|---|---|---|---|---|---|
Abstract Art
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abstractart_data | abstractart_solutions | ||||
Count the Bits
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bits_data | bits_solutions | ||||
Exam
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exam_data | exam_solutions | ||||
Illiteracy
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illiteracy_data | illiteracy_solutions | ||||
Inversions
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inversions_data | inversions_solutions | ||||
Knockout
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knockout_data | knockout_solutions | ||||
Troop Mobilization
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mobilization_data* | mobilization_solutions* | ||||
Paper Strips
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paper_data | paper_solutions | ||||
Rectangles
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rectangles_data | rectangles_solutions | ||||
Area Rug
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rug_data | rug_solutions | ||||
To Tell the Truth
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truth_data | truth_solutions |
*Note: During the contest, an issue was discovered with the data for Mobilization. Certain cases had collinear points, which caused answers to be numerically unstable. The judge solutions all produced a wrong answer in certain cases (and all the same wrong answer). The degenerate cases were removed.
Here are the statements of the SER 2018 Problems D2.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||
---|---|---|---|---|---|---|
Exam
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exam_data | exam_solutions | ||||
Goat Rope
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goatrope_data | goatrope_solutions | ||||
Repeating Goldbachs
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goldbach_data | goldbach_solutions | ||||
Illiteracy
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illiteracy_data | illiteracy_solutions | ||||
Knockout
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knockout_data | knockout_solutions | ||||
Rectangles
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rectangles_data | rectangles_solutions | ||||
Random Index Vectors
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rivs_data | rivs_solutions | ||||
Area Rug
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rug_data | rug_solutions | ||||
Sculpture
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sculpture_data | sculpture_solutions | ||||
Time Limits
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timelimits_data | timelimits_solutions | ||||
To Tell the Truth
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truth_data | truth_solutions |
Here are the statements of the 2018 NAIPC Problem Set..
And, here is the data and judges’ reference solutions. There were three divisions, Invitational (Inv), and two Open (Opn USA/World). Also, the next day, the Russian Open Cup (Cup) series of contests used this problem set for their Grand Prix of America.
You can check out the results of the NAIPC and Open Cup contests.
Problem | Judge Data | Accepted Solutions | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A: Cut it Out!
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data | accepted | ||||||||||||
B: Double Clique
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data | accepted | ||||||||||||
C: Flashing Fluorescents
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data | accepted | ||||||||||||
D: Missing Gnomes
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data | accepted | ||||||||||||
E: Prefix Free Code
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data | accepted | ||||||||||||
F: Probe Droids
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data | accepted | ||||||||||||
G: Rainbow Graph
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data | accepted | ||||||||||||
H: Recovery
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data | accepted | ||||||||||||
I: Red Black Tree
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data | accepted | ||||||||||||
J: Winter Festival
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data | accepted | ||||||||||||
K: Zoning Houses
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data | accepted |
Here are the statements of the SER 2017 Problems D1.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||
---|---|---|---|---|---|---|
Ducks in a Row
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ducks_data | ducks_solutions | ||||
Exciting Finish!
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exciting_data | exciting_solutions | ||||
Flipping Out
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flipping_data | flipping_solutions | ||||
Jumping Haybales
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haybales_data | haybales_solutions | ||||
Long Long Strings
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longlong_data | longlong_solutions | ||||
Move Away
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moveaway_data | moveaway_solutions | ||||
Rainbow Roads
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rainbow_data | rainbow_solutions | ||||
Security Badges
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security_data | security_solutions | ||||
Star Arrangements
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stars_data | stars_solutions | ||||
Treasure Map
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treasure_data | treasure_solutions | ||||
Unsatisfying
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unsatisfying_data | unsatisfying_solutions |
Here are the statements of the SER 2017 Problems D2.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||
---|---|---|---|---|---|---|
Congruent Numbers
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congruent_data | congruent_solutions | ||||
Unloaded Die
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die_data | die_solutions | ||||
Halfway
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halfway_data | halfway_solutions | ||||
Law 11
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law11_data | law11_solutions | ||||
Long Long Strings
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longlong_data | longlong_solutions | ||||
Move Away
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moveaway_data | moveaway_solutions | ||||
Purple Rain
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purple_data | purple_solutions | ||||
Rainbow Road
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rainbow_data | rainbow_solutions | ||||
Arithmetic Sequences
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sequences_data | sequences_solutions | ||||
Star Arrangements
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stars_data | stars_solutions | ||||
Treasure Map
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treasure_data | treasure_solutions |
Here are the statements of the 2017 NAIPC Problems.
And, here is the data and judges’ reference solutions. There were three divisions, Invitational (Inv), and two Open (Opn USA/World). Also, the next day, the Russian Open Cup (Cup) series of contests used this problem set for their Grand Prix of America.
You can check out the results of the NAIPC and Open Cup contests.
Problem | Judge Data | Solutions | ||||||||||||||||||
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A: Pieces of Parentheses
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B: Stars in a Can
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C: Stretching Streamers
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D: Heaps from Trees
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E: Blazing New Trails
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F: Incremental Double Free Strings
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G: Apple Market
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H: Maximum Color Clique
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I: Ski Resort
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J: Stones of Yin and Yang
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K: Unbalanced Parentheses
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Here are the statements of the SER 2016 Problems D2.
And, here is the data and judges’ reference solutions:
Here are the statements of the SER 2016 Problems D1.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Alphabet
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alphabet |
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Base Sums
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basesums |
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Buggy Robot
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buggy |
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Enclosure
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enclosure |
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Illumination
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illumination |
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InTents
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intents |
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Islands
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islands |
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Paint
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paint |
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Periodic Strings
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periodic |
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Water
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water |
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Zigzag
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zigzag |
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Here’s a video that introduces the ACM International Collegiate Programming Contest (ICPC), and in particular, the Southeast USA Region.
You can download it as a 2G mp4 file (If your browser plays it automatically, then right-click the link and “Save Link As…”)
Or, you can stream it from FIT
You’ll want to watch in full-screen mode. There’s a screen capture segment in the middle that you won’t be able to read otherwise.
Here are the statements of the 2016 NAIPC.
And, here is the data and judges’ reference solutions (Submissions/Solutions are for Invitational Division only):
Problem | Judge Data | Solutions | ||||
---|---|---|---|---|---|---|
Fancy Antiques
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antiques | antiques_deon2.cc FancyAntiques_lewin.java antiques_deon.cc |
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Alternate Bracket Notation
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bracketnotation | abs_font.java bracketnotation_vanb.java |
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Greetings!
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greetings | greetings_font.java greetings_hcheng.cc greetingsWA_font.java Greetings.java |
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Programming Team
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programmingteam | HiringEmployees_lewin.java programmingteam_hcheng.cc |
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K-Inversions
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kinversions | kinversions_hcheng.cc KInversions.java |
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Mountain Scenes
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scenes | scenes_font.java scenes_vanb.java mountain_hcheng.cc |
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Symmetry
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symmetry | symmetry_hcheng_hash.cc symmetry_hcheng_slow.cc symmetry_vanb.java symm_tgr.cpp symm_tgr.java |
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Jewel Thief
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thief | thief_font.java Note: the following solutions are too slow, and were only used to verify the data thiefslow_font.java thiefslowish_font.java JewelTheif.java |
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Tourists
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tourists | tourists_font.java tourists_hcheng.cc tourists_vanb.java tourists.java |
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Whiteboard
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whiteboard | whiteboard_vanb.java whiteboard_font.java |
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YATP
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yatp | YetAnotherTreeProblem_min.java yatp_font.java |
Here are the slides: ACM SEUSA Regional Problems 2015
Here are the statements of the SER 2015 Problems D1.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||||||
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Airports
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Checkers
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Coverage
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Gears
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Grid
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Hilbert Sort
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The Magical 3
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Racing Gems
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Simplicity
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Weightlifting
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Here are the statements of the SER 2015 Problems D2.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | |||||||
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Blur
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A Classy Problem
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Egg Drop
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Excellence
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Grid
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Hilbert Sort
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The Magical 3
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Persistence
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Simplicity
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Triangles
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Xedni Drawkcab
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Here are the statements of the 2015 NAIPC Problems.
And, here is the data and judges’ reference solutions. There were two divisions, Invitational (Inv), and Open (Opn). Also, the next day, the Russian Open Cup (Cup) series of contests used this problem set for their Grand Prix of America.
You can check out the results of the NAIPC and Open Cup contests.
Problem | Judge Data | Solutions | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A: Area of Effect
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B: Canyon Mapping
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C: Magic Checkerboard
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D: Extensive Or
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E: Primal Partitions
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F: Sand Art
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G: String Stretching
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H: Vending Machine
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I: Rainbow Zamboni
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J: Zig Zag Nametag
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Here are the statements of the SER 2014 D1 Problems.
And, here is the data and judges’ reference solutions:
Problem | Judge Data | Solutions | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
A: Alchemy
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B: Stained Carpet
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C: Containment
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D: Gold Leaf
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E: Hill Number
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F: Knights
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G: Word Ladder
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H: Shuffles
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I: Stamp Stamp
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