User Ivan_Li

Points breakdown

76 / 100

AC | PYPY3

Phantom's Python Challenge

on Nov. 16, 2024, 3:41 p.m.

30pp

weighted 100% (30pp)

41 / 41

AC | PY3

Summer Institute '17 Contest 3 P5 - Balanced Cycles

on May 12, 2024, 1:48 a.m.

20pp

weighted 95% (19pp)

150 / 150

AC | PY3

CCO '07 P6 - Road Construction

on March 15, 2024, 2:05 p.m.

20pp

weighted 90% (18pp)

15 / 15

AC | C++20

CCC '19 S5 - Triangle: The Data Structure

on Feb. 1, 2024, 5:00 p.m.

20pp

weighted 86% (17pp)

100 / 100

AC | C++20

New Year's '16 P8 - S-NO-wall

on Jan. 30, 2024, 5:26 p.m.

20pp

weighted 81% (16pp)

100 / 100

AC | PYPY3

Back From Summer '17 P6: Crowded Cities

on Jan. 11, 2024, 4:38 p.m.

20pp

weighted 77% (15pp)

100 / 100

AC | PY3

NOI '04 P1 - The Depressed Cashier

on Nov. 25, 2023, 3:27 p.m.

20pp

weighted 74% (15pp)

15 / 15

AC | PY3

CCC '16 S5 - Circle of Life

on Aug. 10, 2023, 10:32 p.m.

20pp

weighted 70% (14pp)

100 / 100

AC | C++20

STNBD P4 - Ellis Fahrengart

on Aug. 18, 2024, 10:45 p.m.

17pp

weighted 66% (11pp)

100 / 100

AC | C++20

Segment Tree Practice 4

on Aug. 13, 2024, 2:25 p.m.

17pp

weighted 63% (11pp)

Problem	Category	Points
OTHS Coding Competition 1 (Mock CCC) J2 - Wand Selection	Uncategorized	3
OTHS Coding Competition 1 (Mock CCC) J3 - Explosion	Uncategorized	5p
OTHS Coding Competition 1 (Mock CCC) J4 - Railgun	Uncategorized	7p
OTHS Coding Competition 1 (Mock CCC) J5 - Scavenger Hunt	Uncategorized	10p
OTHS Coding Competition 2 P2 - Ghoul Investigators	Uncategorized	3p
OTHS Coding Competition 2 P4 - Magic Barrier	Uncategorized	5p
X Diagonal	Uncategorized	5p

Problem	Score
An Animal Contest 1 P1 - Alpaca Shapes	3 / 3
An Animal Contest 1 P4 - Alpaca Arrays	10 / 10
An Animal Contest 1 P5 - Odd Alpacas	12 / 12
An Animal Contest 1 P6 - Alpaca Distancing	12 / 12
An Animal Contest 3 P1 - Monkey Shopping	3 / 3
An Animal Contest 3 P2 - Monkey Potato	5 / 5
An Animal Contest 3 P3 - Monkey Market	7 / 7
An Animal Contest 4 P2 - Lavish Lights	10 / 10
An Animal Contest 5 P2 - Permutations & Products	5 / 5
An Animal Contest 5 P3 - Ski Resort	10 / 10
An Animal Contest 6 P1 - Workout Routine	5 / 5
An Animal Contest 7 P2 - Squirrel Structures	7 / 7

Problem	Score
Baltic OI '01 P5 - Mars Maps	15 / 15
Baltic OI '03 P4 - The Gangs	12 / 12
Baltic OI '03 P5 - Lamps	15 / 15
Baltic OI '07 P3 - Sound	10 / 10
Baltic OI '10 P4 - Matching Bins	7 / 7
Baltic OI '15 P3 - Network	15 / 15
Baltic OI '17 P6 - Cat in a tree	15 / 15

Problem	Score
CCC '00 J2 - 9966	3 / 3
CCC '00 S1 - Slot Machines	5 / 5
CCC '00 S2 - Babbling Brooks	7 / 7
CCC '00 S3 - Surfing	7 / 7
CCC '00 S4 - Golf	7 / 7
CCC '00 S5 - Sheep and Coyotes	5 / 10
CCC '01 J1 - Dressing Up	3 / 3
CCC '01 S1 - Keeping Score	5 / 5
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '01 S4 - Cookies	10 / 10
CCC '01 S5 - Post's Correspondence Problem	10 / 10
CCC '02 S4 - Bridge Crossing	10 / 10
CCC '02 S5 - Follow the Bouncing Ball	10 / 10
CCC '03 S3 - Floor Plan	7 / 7
CCC '03 S4 - Substrings	12 / 15
CCC '03 S5 - Trucking Troubles	10 / 10
CCC '04 J1 - Squares	3 / 3
CCC '04 J3 - Smile with Similes	3 / 3
CCC '04 S1 - Fix	5 / 5
CCC '04 S3 - Spreadsheet	10 / 10
CCC '04 S4 - Space Turtle	10 / 10
CCC '04 S5 - Super Plumber	10 / 10
CCC '05 J2 - RSA Numbers	3 / 3
CCC '05 J3 - Returning Home	5 / 5
CCC '05 J4 - Cross Spiral	7 / 7
CCC '05 S2 - Mouse Move	5 / 5
CCC '05 S3 - Quantum Operations	10 / 10
CCC '05 S4 - Pyramid Message Scheme	10 / 10
CCC '05 S5 - Pinball Ranking	12 / 12
CCC '06 J1 - Canadian Calorie Counting	3 / 3
CCC '06 J4 - It's tough being a teen!	7 / 7
CCC '06 S2 - Attack of the CipherTexts	5 / 5
CCC '06 S3 - Tin Can Telephone	12 / 12
CCC '06 S4 - Groups	10 / 10
CCC '07 J1 - Who is in the Middle?	3 / 3
CCC '07 J2 - I Speak TXTMSG	3 / 3
CCC '07 J3 - Deal or No Deal Calculator	3 / 3
CCC '07 J4 - Anagram Checker	5 / 5
CCC '07 J5 - Keep on Truckin'	7 / 7
CCC '07 S1 - Federal Voting Age	3 / 3
CCC '07 S2 - Boxes	5 / 5
CCC '07 S3 - Friends	7 / 7
CCC '07 S4 - Waterpark	7 / 7
CCC '07 S5 - Bowling for Numbers	10 / 10
CCC '08 J1 - Body Mass Index	3 / 3
CCC '08 J2 - Do the Shuffle	3 / 3
CCC '08 J3 - GPS Text Entry	3 / 3
CCC '08 J4 - From Prefix to Postfix	7 / 7
CCC '08 S2 - Pennies in the Ring	5 / 5
CCC '08 S3 - Maze	7 / 7
CCC '08 S5 - Nukit	10 / 10
CCC '09 J1 - ISBN	3 / 3
CCC '09 J4 - Signage	7 / 7
CCC '09 S1 - Cool Numbers	5 / 5
CCC '09 S2 - Lights Going On and Off	10 / 10
CCC '09 S3 - Degrees Of Separation	10 / 10
CCC '09 S4 - Shop and Ship	10 / 10
CCC '09 S5 - Wireless	12 / 12
CCC '10 J2 - Up and Down	5 / 5
CCC '10 J4 - Global Warming	5 / 5
CCC '10 J5 - Knight Hop	7 / 7
CCC '10 S2 - Huffman Encoding	5 / 5
CCC '10 S3 - Firehose	15 / 15
CCC '10 S4 - Animal Farm	15 / 15
CCC '11 J1 - Which Alien?	3 / 3
CCC '11 J3 - Sumac Sequences	5 / 5
CCC '11 J4 - Boring Business	7 / 7
CCC '11 J5 - Unfriend	7 / 7
CCC '11 S1 - English or French?	5 / 5
CCC '11 S2 - Multiple Choice	3 / 3
CCC '11 S3 - Alice Through the Looking Glass	10 / 10
CCC '11 S4 - Blood Distribution	7.500 / 15
CCC '11 S5 - Switch	12 / 12
CCC '12 J1 - Speed fines are not fine!	3 / 3
CCC '12 J2 - Sounds fishy!	3 / 3
CCC '12 J3 - Icon Scaling	3 / 3
CCC '12 J4 - Big Bang Secrets	3 / 3
CCC '12 S1 - Don't pass me the ball!	3 / 3
CCC '12 S2 - Aromatic Numbers	5 / 5
CCC '12 S3 - Absolutely Acidic	7 / 7
CCC '12 S4 - A Coin Game	15 / 15
CCC '12 S5 - Mouse Journey	7 / 7
CCC '13 J1 - Next in line	3 / 3
CCC '13 J2 - Rotating letters	3 / 3
CCC '13 J4 - Time on task	5 / 5
CCC '13 S1 - From 1987 to 2013	5 / 5
CCC '13 S2 - Bridge Transport	5 / 5
CCC '13 S3 - Chances of Winning	10 / 10
CCC '13 S4 - Who is Taller?	7 / 7
CCC '13 S5 - Factor Solitaire	15 / 15
CCC '14 J1 - Triangle Times	3 / 3
CCC '14 J3 - Double Dice	3 / 3
CCC '14 S1 - Party Invitation	5 / 5
CCC '14 S2 - Assigning Partners	5 / 5
CCC '14 S3 - The Geneva Confection	7 / 7
CCC '14 S4 - Tinted Glass Window	15 / 15
CCC '14 S5 - Lazy Fox	12 / 20
CCC '15 J1 - Special Day	3 / 3
CCC '15 J2 - Happy or Sad	3 / 3
CCC '15 J3 - Rövarspråket	5 / 5
CCC '15 J4 - Wait Time	5 / 5
CCC '15 J5 - π-day	10 / 10
CCC '15 S1 - Zero That Out	3 / 3
CCC '15 S2 - Jerseys	5 / 5
CCC '15 S3 - Gates	10 / 10
CCC '15 S4 - Convex Hull	15 / 15
CCC '15 S5 - Greedy For Pies	17 / 17
CCC '16 J2 - Magic Squares	3 / 3
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 J4 - Arrival Time	5 / 5
CCC '16 S1 - Ragaman	3 / 3
CCC '16 S2 - Tandem Bicycle	5 / 5
CCC '16 S3 - Phonomenal Reviews	12 / 12
CCC '16 S4 - Combining Riceballs	15 / 15
CCC '16 S5 - Circle of Life	20 / 20
CCC '17 J1 - Quadrant Selection	3 / 3
CCC '17 J2 - Shifty Sum	3 / 3
CCC '17 J3 - Exactly Electrical	3 / 3
CCC '17 J4 - Favourite Times	5 / 5
CCC '17 S1 - Sum Game	3 / 3
CCC '17 S2 - High Tide, Low Tide	5 / 5
CCC '17 S3 - Nailed It!	7 / 7
CCC '17 S4 - Minimum Cost Flow	17 / 17
CCC '17 S5 - RMT	6.667 / 20
CCC '18 J1 - Telemarketer or not?	3 / 3
CCC '18 J2 - Occupy parking	3 / 3
CCC '18 J3 - Are we there yet?	3 / 3
CCC '18 J5 - Choose your own path	7 / 7
CCC '18 S1 - Voronoi Villages	3 / 3
CCC '18 S2 - Sunflowers	5 / 5
CCC '18 S3 - RoboThieves	12 / 12
CCC '18 S4 - Balanced Trees	15 / 15
CCC '19 J1 - Winning Score	3 / 3
CCC '19 J2 - Time to Decompress	3 / 3
CCC '19 J3 - Cold Compress	5 / 5
CCC '19 J5 - Rule of Three	5.333 / 20
CCC '19 S1 - Flipper	3 / 3
CCC '19 S2 - Pretty Average Primes	5 / 5
CCC '19 S3 - Arithmetic Square	12 / 12
CCC '19 S4 - Tourism	2 / 20
CCC '19 S5 - Triangle: The Data Structure	20 / 20
CCC '20 J1 - Dog Treats	3 / 3
CCC '20 J2 - Epidemiology	3 / 3
CCC '20 J3 - Art	3 / 3
CCC '20 J4 - Cyclic Shifts	5 / 5
CCC '20 S1 - Surmising a Sprinter's Speed	5 / 5
CCC '20 S2 - Escape Room	10 / 10
CCC '20 S3 - Searching for Strings	12 / 12
CCC '20 S4 - Swapping Seats	12 / 12
CCC '21 J1 - Boiling Water	3 / 3
CCC '21 J2 - Silent Auction	3 / 3
CCC '21 J3 - Secret Instructions	5 / 5
CCC '21 J4 - Arranging Books	7 / 7
CCC '21 S1 - Crazy Fencing	5 / 5
CCC '21 S2 - Modern Art	7 / 7
CCC '21 S3 - Lunch Concert	10 / 10
CCC '21 S4 - Daily Commute	12 / 12
CCC '21 S5 - Math Homework	15 / 15
CCC '22 J1 - Cupcake Party	3 / 3
CCC '22 J2 - Fergusonball Ratings	3 / 3
CCC '22 J3 - Harp Tuning	5 / 5
CCC '22 J5 - Square Pool	10 / 10
CCC '22 S1 - Good Fours and Good Fives	5 / 5
CCC '22 S2 - Good Groups	5 / 5
CCC '22 S3 - Good Samples	10 / 10
CCC '23 J1 - Deliv-e-droid	3 / 3
CCC '23 J2 - Chili Peppers	3 / 3
CCC '23 J3 - Special Event	5 / 5
CCC '23 J5 - CCC Word Hunt	10 / 10
CCC '23 S1 - Trianglane	5 / 5
CCC '23 S2 - Symmetric Mountains	7 / 7
CCC '23 S3 - Palindromic Poster	10 / 10
CCC '23 S4 - Minimum Cost Roads	15 / 15
CCC '23 S5 - The Filter	4 / 20
CCC '24 J1 - Conveyor Belt Sushi	3 / 3
CCC '24 J2 - Dusa And The Yobis	3 / 3
CCC '24 J3 - Bronze Count	5 / 5
CCC '24 J4 - Troublesome Keys	5 / 5
CCC '24 J5 - Harvest Waterloo	7 / 7
CCC '24 S1 - Hat Circle	3 / 3
CCC '24 S2 - Heavy-Light Composition	5 / 5
CCC '24 S3 - Swipe	10 / 10
CCC '24 S4 - Painting Roads	12 / 12
CCC '24 S5 - Chocolate Bar Partition	2.667 / 20
CCC '97 S1 - Sentences	5 / 5
CCC '98 S5 - Mountain Passage	10 / 10
CCC '99 S4 - A Knightly Pursuit	12 / 12
CCOQR '16 - Stupendous Bowties	10 / 10
CCOQR '16 - Data Structure	15 / 15
CCCHK '15 J3 - Queens can't attack me!	5 / 5
CCCHK '15 J4 - Where to build my house?	5 / 5

Problem	Score
CCO '00 P1 - Subsets	10 / 10
CCO '01 P1 - The Monkey Dance	10 / 10
CCO '05 P5 - Segments	10 / 10
CCO '07 P2 - Snowflakes	10 / 10
CCO '07 P6 - Road Construction	20 / 20
CCO '08 P3 - Mobile	17 / 17
CCO '08 P4 - Herding	10 / 10
CCO '08 P5 - Candy	7 / 7
CCO '10 P2 - Tree Pruning	15 / 15
CCO '10 P3 - Wowow	15 / 15
CCO '10 P4 - Computer Purchase Return	10 / 10
CCO '11 P2 - Vampire Tunnels	15 / 15
CCO '12 P2 - The Hungary Games	15 / 15
CCO '13 P1 - All Your Base Belong to Palindromes	10 / 10
CCO '13 P2 - Tourney	12 / 12
CCO '13 P3 - LHC	12 / 12
CCO '14 P1 - Troyangles	10 / 10
CCO '15 P2 - Artskjid	15 / 15
CCO '15 P4 - Cars on Ice	9 / 10
CCO '16 P4 - O Canada	10 / 10
CCO '17 P1 - Vera and Trail Building	7 / 7
CCO '18 P1 - Geese vs. Hawks	10 / 10
CCO '24 P1 - Treasure Hunt	10 / 10
CCO '24 P2 - Pizza Party	10 / 10
CCO '98 P5 - Text Segmentation	10 / 10
CCO '98 P6 - Derek's Dilemma	12 / 12
CCO '99 P6 - Fast Food	15 / 15

User Ivan_Li

Points breakdown

Authored problems (7)

AAC (89 points)

ACC (7 points)

Baltic OI (89 points)

BlueBook (3 points)

CCC (1306.167 points)

CCO (316 points)

CEOI (10 points)

China NOI (20 points)

Classics (57 points)

COCI (434.091 points)

Data Structure Tests (52 points)

DMOPC (709.700 points)

DWITE (63 points)

ECOO (16 points)

EGOI (39.300 points)

FHC (30 points)

GFSSOC (64 points)

Google Code Jam (7 points)

ICPC (22 points)

IOI (63.500 points)

Mock CCC (155 points)

Mock CCO (59 points)

MWC (17 points)

Olympiads School (63.500 points)

POI (12 points)

SAC Coding Challenge (51 points)

Seasonal (174.700 points)

SIUCF (20 points)

TLE (45 points)

TSOC (41 points)

Uncategorized (1421.934 points)

VM7WC (124 points)

WAC (8 points)

Waterloo Local (10 points)

Woburn Challenge (102 points)

YAC (66.400 points)

Problem	Score
Sorting	3 / 3
Next Prime (Hard)	15 / 15
HopScotch II	12 / 12
Longest Increasing Subsequence	10 / 10
Quine	10 / 10
Single Source Shortest Path	7 / 7

Problem	Score
COCI '06 Contest 1 #4 Slikar	10 / 10
COCI '06 Contest 1 #5 Bond	12 / 12
COCI '06 Contest 2 #5 Stol	12 / 12
COCI '06 Contest 5 #5 Ivana	15 / 15
COCI '06 Contest 5 #6 Dvaput	15 / 15
COCI '07 Contest 1 #4 Zapis	15 / 15
COCI '07 Contest 3 #5 Cudak	15 / 15
COCI '07 Contest 3 #6 Redoks	17 / 17
COCI '07 Contest 4 #4 Muzicari	10 / 10
COCI '10 Contest 2 #4 Knjige	5 / 5
COCI '10 Contest 5 #1 Gljive	3 / 3
COCI '10 Contest 6 #4 Abeceda	9.091 / 10
COCI '12 Contest 3 #3 Malcolm	7 / 7
COCI '12 Contest 6 #3 Dobri	7 / 7
COCI '13 Contest 2 #1 Volim	3 / 3
COCI '13 Contest 2 #2 Misa	5 / 5
COCI '13 Contest 2 #5 Paleta	15 / 15
COCI '13 Contest 5 #2 Obilazak	7 / 7
COCI '13 Contest 5 #3 Eksplozjia	10 / 10
COCI '14 Contest 2 #3 Studentsko	12 / 12
COCI '14 Contest 6 #4 Kratki	1 / 10
COCI '15 Contest 2 #2 Geppetto	7 / 7
COCI '15 Contest 2 #5 Vudu	6 / 15
COCI '15 Contest 4 #3 Deathstar	7 / 7
COCI '15 Contest 7 #3 Ozljeda	10 / 10
COCI '16 Contest 1 #3 Cezar	10 / 10
COCI '16 Contest 2 #3 Nizin	10 / 10
COCI '18 Contest 1 #2 Zamjena	7 / 7
COCI '18 Contest 1 #3 Cipele	10 / 10
COCI '18 Contest 4 #2 Wand	7 / 7
COCI '18 Contest 4 #3 Kisik	12 / 12
COCI '19 Contest 4 #5 Nivelle	12 / 12
COCI '19 Contest 5 #4 Putovanje	15 / 15
COCI '19 Contest 6 #2 Birmingham	7 / 7
COCI '20 Contest 1 #2 Bajka	7 / 7
COCI '20 Contest 5 #2 Po	7 / 7
COCI '20 Contest 6 #1 Bold	5 / 5
COCI '20 Contest 6 #2 Alias	10 / 10
COCI '20 Contest 6 #3 Anagramistica	12 / 12
COCI '21 Contest 6 #2 Zemljište	10 / 10
COCI '22 Contest 3 #2 Dirigent	7 / 7
COCI '22 Contest 4 #5 Vrsta	12 / 12
COCI '23 Contest 1 #1 Sudoku	5 / 5
COCI '23 Contest 1 #3 AN2DL	12 / 12
COCI '23 Contest 4 #1 Bingo	5 / 5
COI '06 #1 Patrik	12 / 12
COCI '08 Regional #2 Majstor	5 / 5

Problem	Score
Binary Indexed Tree Test	10 / 10
Disjoint Set Test	10 / 10
Segment Tree Test	15 / 15
Strict Evaluation	17 / 17

Problem	Score
DMOPC '13 Contest 1 P4 - AFK	7 / 7
DMOPC '13 Contest 3 P5 - A Romantic Dinner	10 / 10
DMOPC '14 Contest 1 P5 - Surprise Teleport	7 / 7
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
DMOPC '14 Contest 2 P5 - Sawmill Scheme	10 / 10
DMOPC '14 Contest 2 P6 - Selective Cutting	12 / 12
DMOPC '14 Contest 3 P6 - Not Enough Time!	10 / 10
DMOPC '14 Contest 4 P6 - Save Nagato!	10 / 10
DMOPC '14 Contest 5 P4 - Kittan's Dilemma	10 / 10
DMOPC '15 Contest 1 P5 - Lelei and Dragon Scales	10 / 10
DMOPC '15 Contest 1 P6 - Lelei and Contest	17 / 17
DMOPC '15 Contest 2 P4 - Personal Assistant	12 / 12
DMOPC '15 Contest 3 P4 - Contagion	12 / 12
DMOPC '15 Contest 4 P3 - Lethal	7 / 7
DMOPC '15 Contest 4 P4 - Great Sequence	10 / 10
DMOPC '15 Contest 5 P1 - Gel Bananas	3 / 3
DMOPC '15 Contest 5 P2 - D-Mails	5 / 5
DMOPC '15 Contest 5 P4 - Steins;Number	12 / 12
DMOPC '15 Contest 6 P3 - Harvest	7 / 7
DMOPC '15 Contest 6 P5 - A Classic Problem	10 / 10
DMOPC '15 Contest 7 P5 - Ariadne's Thread	17 / 17
DMOPC '16 Contest 1 P5 - Blood Tubes	12 / 12
DMOPC '16 Contest 2 P2 - Ebola Outbreak	7 / 7
DMOPC '16 Contest 2 P3 - Queries	7 / 7
DMOPC '16 Contest 4 P1 - Fast Exponents	5 / 5
DMOPC '16 Contest 4 P2 - Systests	7 / 7
DMOPC '16 Contest 4 P3 - Carnival Phantasm	10 / 10
DMOPC '17 Contest 1 P1 - Fujō Neko	5 / 5
DMOPC '17 Contest 2 P3 - Bad Bunnies	10 / 10
DMOPC '17 Contest 3 P3 - N-Kat	2 / 10
DMOPC '18 Contest 2 P3 - Thanksgiving Feast	10 / 10
DMOPC '18 Contest 3 P2 - Bob and French Class	7 / 7
DMOPC '18 Contest 4 P4 - Dr. Henri and Lab Data	12 / 12
DMOPC '18 Contest 6 P3 - Wish Upon a Star	10 / 10
DMOPC '18 Contest 6 P4 - Tank	10 / 10
DMOPC '19 Contest 2 P3 - Selection	12 / 12
DMOPC '19 Contest 3 P3 - Majority	12 / 12
DMOPC '19 Contest 4 P3 - Taking Cues	12 / 12
DMOPC '19 Contest 5 P2 - Charlie's Crazy Conquest	5 / 5
DMOPC '19 Contest 6 P3 - Grade 11 Math	10 / 10
DMOPC '19 Contest 6 P4 - Grade 12 Math	15 / 15
DMOPC '20 Contest 1 P3 - Victor's Algorithm	7 / 7
DMOPC '20 Contest 3 P2 - Bob and Parallel-Ks	7 / 7
DMOPC '20 Contest 4 P3 - Roving Roombas	12 / 12
DMOPC '20 Contest 5 P2 - On The Clock	7 / 7
DMOPC '20 Contest 6 P1 - Tug of War	7 / 7
DMOPC '20 Contest 6 P3 - Bread Merchant	3 / 10
DMOPC '20 Contest 7 P1 - Bob and Balance	7 / 7
DMOPC '21 Contest 10 P2 - Cycle Sort	7 / 7
DMOPC '21 Contest 10 P5 - Number Theory	15 / 20
DMOPC '21 Contest 2 P1 - Bosses	7 / 7
DMOPC '21 Contest 3 P2 - Weak Data	10 / 10
DMOPC '21 Contest 4 P1 - Tree Shopping	7 / 7
DMOPC '21 Contest 4 P2 - Festive Groups	7 / 7
DMOPC '21 Contest 5 P1 - Permutations & Primes	5 / 5
DMOPC '21 Contest 6 P2 - Gacha Luck	7 / 7
DMOPC '21 Contest 6 P3 - An Art Problem	10 / 10
DMOPC '21 Contest 7 P1 - Chika Grids	5 / 5
DMOPC '21 Contest 7 P2 - Knitting Scarves	7 / 7
DMOPC '21 Contest 8 P1 - Peanut Planning	7 / 7
DMOPC '21 Contest 8 P2 - Kanna Market	10 / 10
DMOPC '21 Contest 9 P1 - Board Numbers	7 / 7
DMOPC '21 Contest 9 P2 - String Puzzle	7 / 7
DMOPC '22 Contest 1 P2 - Hat Swap	10 / 10
DMOPC '22 Contest 3 P1 - Holiday Colouring	5 / 5
DMOPC '22 Contest 4 P1 - Alone Time	5 / 5
DMOPC '22 Contest 5 P1 - Triple Triplets	5 / 5
DMOPC '22 Contest 5 P2 - Absolutely Even	7 / 7
DMOPC '23 Contest 1 P1 - Peak Grid	5 / 5
DMOPC '23 Contest 1 P2 - Knights on Chessboard	10 / 10
DMOPC '23 Contest 1 P4 - Wandering Walk	2.500 / 17
DMPG '15 S5 - Black and White	12 / 12
DMPG '15 S6 - Apples to Oranges	17 / 17
DMPG '16 G1 - Explooooosion!	15 / 15
DMPG '16 S5 - Pizza Bag	12 / 12
DMPG '17 G2 - Holy Grail War	17 / 17
DMPG '17 S2 - Anime Conventions	7 / 7
DMPG '18 S5 - Mimi and Division	15 / 15
DMPG '19 G5 - Hunting the White Whale	4.200 / 20
DMPG '19 S3 - Chemical Counting Capers	10 / 10

Problem	Score
DWITE '06 R5 #5 - Prime Palindromes	10 / 10
DWITE '07 R1 #4 - Stacks of Blocks	5 / 5
DWITE '07 R2 #4 - All Is Balanced	5 / 5
DWITE '09 R1 #5 - Running In Circles	7 / 7
DWITE '10 R3 #3 - Dominos Tiling	10 / 10
DWITE '10 R5 #2 - Safe from Rooks	5 / 5
DWITE '10 R5 #3 - Balancing Act	7 / 7
DWITE '11 R2 #5 - Portals Check	7 / 7
DWITE '12 R5 #3 - Triangle Count	7 / 7

Problem	Score
ECOO '19 R2 P1 - Email	5 / 5
ECOO '20 P1 - Music with Mimi	3 / 3
ECOO '20 P2 - Online Shopping	5 / 5
ECOO '21 P2 - DNA Derren	3 / 3

Problem	Score
EGOI '21 P1 - Zeros	7 / 7
EGOI '21 P2 - Luna Likes Love	12 / 12
EGOI '22 P1 - SubsetMex	10 / 10
EGOI '22 P5 - Data Centers	3.300 / 10
EGOI '23 P1 - Inflation	7 / 7

Problem	Score
Facebook Hacker Cup '15 Round 1 P1 - Homework	10 / 10
Facebook Hacker Cup '15 Round 1 P2 - Autocomplete	10 / 10
Facebook Hacker Cup '15 Round 2 P1 - Lazy Sort	10 / 10

Problem	Score
GFSSOC '14 Winter S2 - Speech	5 / 5
GFSSOC '15 Fall J5 - Nightmare-a-thon	10 / 10
GFSSOC '15 Fall S2 - Hearth	5 / 5
GFSSOC '15 Fall S4 - Mostly Talking	15 / 15
GFSSOC '15 Fall S5 - Raider	17 / 17
GFSSOC '15 Winter S1 - OR-deal	5 / 5
GFSSOC '15 Winter S3 - PalinDrone	7 / 7

Problem	Score
ICPC NAQ 2015 G - Safe Passage	10 / 10
ICPC NEERC 2010 K - Graph Oddity	12 / 12

Problem	Score
IOI '00 P1 - Palindrome	3 / 10
IOI '01 P1 - Mobile Phones	15 / 15
IOI '04 P5 - Farmer	13.500 / 15
IOI '11 P2 - Race (Standard I/O)	17 / 17
IOI '13 P1 - Dreaming (Standard I/O)	15 / 15

Problem	Score
Mock CCC '20 Contest 1 J4 - A Binary Problem	5 / 5
Mock CCC '20 Contest 2 S1 - Arithmetic Hybercube	3 / 3
Mock CCC '20 Contest 2 S2 - 4D BBST on a DP	5 / 5
Mock CCC '20 Contest 2 S3 - Tree Programming	10 / 10
Mock CCC '22 Contest 1 J1 - Square Root Decomposition	3 / 3
Mock CCC '24 Contest 1 J1 - Lemon Bathtub	3 / 3
Mock CCC '24 Contest 1 J3 - RGB Words	5 / 5
Mock CCC '24 Contest 1 J5 - Mathland	10 / 10
Mock CCC '24 Contest 1 J4/S1 - Magical Magnetic Marbles	5 / 5
Mock CCC '24 Contest 1 S2 - Owen the Toucan	7 / 7
Mock CCC '14 S3 - Spreadsheet Sorting	7 / 7
Mock CCC '15 S1 - Dupvoting	5 / 5
Mock CCC '15 S2 - Problem-setting Pandemonium	5 / 5
Mock CCC '23 2 S1 - Composite Fibonacci Numbers	3 / 3
Mock CCC '18 Contest 1 J3/S1 - A Math Problem	5 / 5
Mock CCC '18 Contest 1 J4/S2 - A Square Problem	5 / 5
Mock CCC '18 Contest 1 J5/S3 - A Simulation Problem	7 / 7
Mock CCC '18 Contest 2 J3/S1 - An Array Problem	7 / 7
Mock CCC '18 Contest 2 S4 - A Tree Problem	12 / 12
Mock CCC '18 Contest 3 J1 - A Sum Problem	3 / 3
Mock CCC '18 Contest 3 J2 - A Palindrome Problem	3 / 3
Mock CCC '18 Contest 3 J3/S1 - A String Problem	5 / 5
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity	7 / 7
Mock CCC '19 Contest 1 J3 - Pusheen Eats Tuna Sashimi and Tuna Nigiri	3 / 3
Mock CCC '21 S2 - Colorful Strings	7 / 7
Mock CCC '22 1 S1 - Big Mattress Tournament	5 / 5
Mock CCC '22 1 S2 - IU	5 / 5
Valentine's Day '18 J3 - Are they cute?	5 / 5

Problem	Score
CCO Preparation Test 1 P3 - K-th Rank Student	17 / 17
Mock CCO '17 Problem 2 - Penetrating Power	17 / 17
Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem	10 / 10
Mock CCO '18 Contest 4 Problem 3 - Counterattack	15 / 15

Problem	Score
MWC '15 #2 P2: Towering Towers	10 / 10
MWC '15 #3 P3: Bad News	7 / 7

Problem	Score
Magic Sequence	7 / 7
Bob's Kingdom	12 / 12
Least Multiple	10 / 10
Permutation Sorting	6 / 20
City Travel	1.500 / 15
Three Colors	12 / 12
A Fenwick Tree Question	15 / 15

Problem	Score
SAC '22 Code Challenge 1 P3 - That Pool	7 / 7
SAC '22 Code Challenge 4 Junior P4 - Obligatory Permutation Problem	7 / 7
SAC '22 Code Challenge 4 P4 - Obligatory Subarray Problem	10 / 10
SAC '22 Code Challenge 5 Junior P4 - Course Requirements	7 / 7
SAC '22 Code Challenge 5 Junior P5 - English Summative	10 / 10
SAC '22 Code Challenge 5 P4 - Querying Intervals	10 / 10

Problem	Score
Back From Summer '17 P6: Crowded Cities	20 / 20
Back To School '16: Cherry Tree	12 / 12
Back To School '18: Letter Frequency	7 / 7
Death Gun	7 / 7
Halloween '14 P1 - Rabbit Girls	3 / 3
Halloween '14 P2 - Cat Girls	12 / 12
Max's Anger Contest Series 2 P2 - Password Anger	5 / 5
Max's Anger Contest Series 2 P3 - Array Anger	7 / 7
Max's Anger Contest Series 2 P5 - Job Anger	12 / 12
MEC '16 P3 - Getting Good at Programming	10 / 10
Miracle Sort	3 / 3
MNYC '17: Bells	1.700 / 17
Triway Cup '18 Summer B - Beautiful Water Pearl	7 / 7
Triway Cup '19 Summer B - Cameras	5 / 5
Is it a Tree?	7 / 7
Valentine's Day '15 P2 - Simon and Marcy	7 / 7
New Year's '16 P3 - Arithmetic Snowman	5 / 5
New Year's '16 P4 - DIY Christmas Tree	10 / 10
New Year's '16 P8 - S-NO-wall	20 / 20
New Year's '17 P1 - Mr. N and Presents	7 / 7
New Year's '18 P4 - The Polar Express	7 / 7

Problem	Score
TLE '16 Contest 4 P4 - Christmas Tree Building	15 / 15
TLE '16 Contest 6 (Mock CCC) S1 - Writing the CCC	5 / 5
TLE '16 Contest 6 (Mock CCC) S3 - Hyper Fax	15 / 15
TLE '16 Contest 7 P4 - Abstract Problem	10 / 10

Problem	Score
TSOC '15 Contest 1 #5 - Giant Ants	7 / 7
TSOC '15 Contest 2 #6 - All-Out War!	15 / 15
TSOC '16 Contest 1 #4 - Alex and Animal Rights	7 / 7
TSOC '16 Contest 1 #6 - Joey and Biology	12 / 12

Problem	Score
2048	15 / 15
2-D Permutations	10 / 10
2spooky4me	7 / 7
Mispelling	3 / 3
Mirrored Pairs	3 / 3
Triple Fat Ladies	5 / 5
A Coin Problem	12 / 12
Arcadia Computing Contest 1 P1 - Test Anxiety	3 / 3
Arcadia Computing Contest 1 P2 - Chemistry	5 / 5
Arcadia Computing Contest 1 P3 - ScanTron	5 / 5
Arcadia Computing Contest 1 P4 - Cyclic Sorting	7 / 7
Arcadia Computing Contest 1 P5 - Hacking Grades	7 / 7
Sum of Primes 2	5 / 5
A Noisy Class	7 / 7
A Plus B	3 / 3
A Plus B (Hard)	12 / 12
Art Academy 0: Prologue	3 / 3
Art Academy	5 / 5
Art Academy II: The Grand Escape	7 / 7
A Times B	0.700 / 20
Palindromic Integer Partition	5 / 5
Big Deposits	7 / 7
List Minimum (Easy)	3 / 3
List Minimum (Hard)	5 / 5
Lexicographically Least Substring	5 / 5
Boxlings	10.714 / 15
Fast Search	15 / 15
Battleships	10 / 10
BSSPC '21 S3 - James's Egirl Discord Status	7 / 7
BSSPC '22 P6 - Permutations & Primogems	10 / 10
BSSPC '22 P8 - Bayview's RGB Gaming PC	10 / 10
Back to School '24 P1 - Kicking	5 / 5
Back to School '24 P2 - Cheating	10 / 10
Back to School '24 P3 - Tournament	12 / 12
The Cake is a Dessert	10 / 10
Casino Crisis	12 / 12
Coin Change	7 / 7
Checkerboard Summation (Easy)	12 / 12
Checkerboard Summation (Hard)	15 / 15
Cheerio Contest 1 J3 - Festival	5 / 5
Cheerio Contest 1 S1/J4 - Going to School	5 / 5
Cheerio Contest 1 S3 - Stock Trading	7 / 7
Cheerio Contest 1 S4 - Mystery Boxes	10 / 10
Cheerio Contest 3 P1 - Wet Floor	5 / 5
Cheerio Contest 3 P2 - Double-O-Seven	5 / 5
Chores	7 / 7
CPC '19 Contest 1 P2 - Luggage	7 / 7
CPC '21 Contest 1 P2 - AQT and Multiset	7 / 7
CPC '21 Contest 1 P4 - AQT and Directed Graph	12 / 12
Please Help Me	15 / 15
Maximum Sum	7 / 7
Longest Increasing Subsequence	7 / 7
Counting Subsequences	10 / 10
Educational DP Contest AtCoder A - Frog 1	7 / 7
Educational DP Contest AtCoder B - Frog 2	7 / 7
Educational DP Contest AtCoder C - Vacation	7 / 7
Educational DP Contest AtCoder D - Knapsack 1	7 / 7
Educational DP Contest AtCoder E - Knapsack 2	7 / 7
Educational DP Contest AtCoder F - LCS	7 / 7
Educational DP Contest AtCoder G - Longest Path	10 / 10
Educational DP Contest AtCoder H - Grid 1	7 / 7
Educational DP Contest AtCoder I - Coins	10 / 10
Educational DP Contest AtCoder J - Sushi	12 / 12
Educational DP Contest AtCoder K - Stones	10 / 10
Educational DP Contest AtCoder L - Deque	10 / 10
Educational DP Contest AtCoder M - Candies	12 / 12
Educational DP Contest AtCoder N - Slimes	12 / 12
Educational DP Contest AtCoder O - Matching	12 / 12
Educational DP Contest AtCoder P - Independent Set	12 / 12
Educational DP Contest AtCoder Q - Flowers	15 / 15
Educational DP Contest AtCoder S - Digit Sum	12 / 12
Diagnostic Test '16 Level 1 P3 - Faxen Words	5 / 5
Power Distribution	7 / 7
Exam Prep	7 / 7
Fast LCA	12 / 12
Fibonacci Sequence	15 / 15
Flip the Switches	5 / 5
Good Travels	17 / 17
Good Strategy	10 / 10
Good Debugging	17 / 17
King Graff's Defense	15 / 15
Graph Contest 1 P2 - Shortest Path	5 / 5
Graph Contest 2 P2 - Directed Acyclic Graph	10 / 10
Graph Contest 2 P3 - Trees	7 / 7
Graph Contest 3 P1 - Travelling Salesmen	7 / 7
Graph Contest 3 P3 - Cable TV	7 / 7
Hardcore Grinding	5 / 5
HCI '16 - Oversleep	7 / 7
Hello, World!	3 / 3
HHPC1 P1 - Yielding the Longest Substring	5 / 5
HHPC1 P2 - Yuniformity Challenge	10 / 10
HHPC1 P3 - Yonder Ridge	3.600 / 12
HHPC1 P4 - Yet Another A+B Problem	10 / 10
The Hu Tao Fractal	7 / 7
ICHB Selection Contest '17 Problem 3 - Parallel Universe	12 / 12
Levve Loves Segment Trees	15 / 15
LKP '18 Contest 1 P4 - Fun in Föràg	15 / 15
A Math Contest P5 - Good Arrays	7 / 7
A Math Contest P7 - Factors	10 / 10
Monkey Country	10 / 10
The Odd Number	7 / 7
OTHS Coding Competition 1 (Mock CCC) J1 - Math Assistance	3 / 3
OTHS Coding Competition 1 (Mock CCC) J2 - Wand Selection	3 / 3
OTHS Coding Competition 1 (Mock CCC) J3 - Explosion	5 / 5
OTHS Coding Competition 1 (Mock CCC) J4 - Railgun	7 / 7
OTHS Coding Competition 1 (Mock CCC) J5 - Scavenger Hunt	10 / 10
OTHS Coding Competition 2 P1 - Chess Pieces	3 / 3
OTHS Coding Competition 2 P2 - Ghoul Investigators	3 / 3
OTHS Coding Competition 2 P3 - Tally Clicker	5 / 5
OTHS Coding Competition 2 P4 - Magic Barrier	5 / 5
OTHS Coding Competition 2 P5 - Coffee Jelly	7 / 7
Path Finder	10 / 10
Phantom's Python Challenge	30.200 / 40
Pick It	15 / 15
Primes	3 / 3
Primes 2	0.750 / 15
VMSS Pre-Windsor P7 - Going Back to the Definitions	7 / 7
Self-deception	15 / 15
Rainy Days	5 / 5
RGPC '18 P3 - Chocolate Day	10 / 10
RTE '16 S3 - School Traversal	7 / 7
Singularity Cup P1 - Maximum Permutation Product	5 / 5
Singularity Cup P2 - Reverse Substring Partitioning	10 / 10
The Cosmic Era P2 - Uneven Sand	5 / 5
The Cosmic Era P3 - Battle Positions	7 / 7
Dynamic Range Minimum Test	12 / 12
Jason's Theorem	10 / 10
SGS Programming Challenge P1 - XOR in Computer Class	7 / 7
Python Infinite Loop	7 / 7
Sleigh Ride	10 / 10
SMAC 08/09 (Oct) #3 - Jumpscotch	12 / 12
Coding Spree	7 / 7
The DMOJ Driveway	5 / 5
STNBD P1 - Ren Ashbell	3 / 3
STNBD P2 - Claire Elstein	12 / 12
STNBD P3 - Rinslet Laurenfrost	5 / 5
STNBD P4 - Ellis Fahrengart	17 / 17
Segment Tree Practice 1	12 / 12
Segment Tree Practice 2	12 / 12
Segment Tree Practice 3	15 / 15
Segment Tree Practice 4	17 / 17
Subarray Search	7 / 7
Subway Routes	12 / 12
Sudoku Challenge	6.720 / 7
The Contest Contest 1 P1 - A Typical Codeforces Problem	5 / 5
The Contest Contest 1 P2 - A Typical CCC Senior Problem	10 / 10
Ternary Search Tree	5 / 5
THICC '17 P5 - Smarties	7 / 7
Total Destruction	10 / 10
Tree Tasks	10 / 10
Tropical Bananas	10 / 10
UACC 1 P1 - Bench Press Bob	3 / 3
UACC 1 P2 - Puzzling Parks	5 / 5
UACC 1 P3 - Cheeky Checkers	7 / 7
UACC 1 P4 - Converging Streams	10 / 10
UACC 1 P6 - Labyrinth Treasure	12 / 12
UHCC1 P1 - PONG!	3 / 3
UHCC1 P2 - String	5 / 5
UHCC1 P3 - Busy Elevator	5 / 5
UTS Open '15 #3 - Pogo	1.250 / 25
UTS Open '18 P4 - Ianine's Lil Lab	10 / 10
Vending Machine	10 / 10
VPEX P4 - Etopika	12 / 12
WOSS Dual Olympiad 2023 J1: Minimum Price	3 / 3
WOSS Dual Olympiad 2023 J2: 3 Numbers	5 / 5
WOSS Dual Olympiad 2023 J3/S1: Moving Sand	7 / 7
WOSS Dual Olympiad 2023 S2: Geese Attack	10 / 10
WOSS Dual Olympiad 2023 Team Round P1: Combining Candy Canes	5 / 5
WOSS Dual Olympiad 2023 Team Round P2: Holding Eggnog	7 / 7
X Diagonal	5 / 5
XOR Minimum	17 / 17

Problem	Score
VMSS '15 #0 - Head Data Slave Applications	10 / 10
VMSS '15 #4 - Frank and Roads	10 / 10
VM7WC '15 #2 Silver - 4 Nations, 1 Secret	10 / 10
VM7WC '15 #2 Gold - Uniting the Earth Empire	12 / 12
VM7WC '15 #4 Gold - Chain Rule	10 / 10
VM7WC '15 #5 Gold - Tree Planting	12 / 12
VM7WC '16 #2 Gold - GGG	15 / 15
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5
VM7WC '16 #3 Gold - Hello, Officer.	10 / 10
VM7WC '16 #4 Gold - Restoring Reputation	10 / 10
VM7WC '16 #5 Gold - Jayden Studies Trees	7 / 7
VM7WC '16 #6 Bronze - The Most Important Skill in Biology	3 / 3
VM7WC '16 #6 Gold - Cold War Telecom	10 / 10

Problem	Score
Wesley's Anger Contest Reject 2 - 🥕suba	3 / 3
Wesley's Anger Contest Reject 5 - Two Permutations	5 / 5

Problem	Score
WC '01 P3 - Back to the Future	5 / 5
WC '07 P3 - Strategy Meeting	10 / 10
WC '16 Contest 1 S3 - Tricky's Treats	12 / 12
WC '16 Contest 3 S2 - Training Regimen	12 / 12
WC '17 Contest 1 S1 - On the Rocks	5 / 5
WC '17 Contest 4 S2 - Strange Travels	12 / 12
WC '18 Contest 2 S2 - Plutonium	12 / 12
WC '18 Contest 3 J4 - Leveling Up	7 / 7
WC '18 Contest 3 S2 - Gym Tour	12 / 12
WC '18 Contest 4 S1 - World of StarCraft	10 / 10
WC '96 P6 - Bases Multiplication	5 / 5

Problem	Score
Yet Another Contest 2 P1 - Betting	5 / 5
Yet Another Contest 2 P2 - Secret Sequence	7 / 7
Yet Another Contest 3 P1 - Shell Swap Scam	5 / 5
Yet Another Contest 3 P4 - Rumour	15 / 15
Yet Another Contest 5 P2 - Big Score	10 / 10
Yet Another Contest 6 P1 - No More Separation	5 / 5
Yet Another Contest 7 P1 - Page Turning	5 / 5
Yet Another Contest 8 P1 - Permutation Sorting	5 / 5
Yet Another Contest 8 P2 - No More Modern Art	7 / 7
Yet Another Contest 8 P3 - Herobrine	2.400 / 12