User hxian

Points breakdown

100 / 100

AC | C++20

IOI '14 P5 - Friend

on Dec. 25, 2023, 12:36 a.m.

30pp

weighted 100% (30pp)

100 / 100

AC | JAVA8

IOI '14 P5 - Friend (Standard I/O)

on Aug. 18, 2023, 8:24 p.m.

30pp

weighted 95% (29pp)

25 / 25

AC | C++20

CCO '20 P4 - Travelling Salesperson

on Oct. 8, 2025, 6:11 p.m.

25pp

weighted 90% (23pp)

100 / 100

AC | C++20

COI '15 #4 Torrent

on Aug. 21, 2025, 8:12 p.m.

25pp

weighted 86% (21pp)

20 / 20

AC | C++20

COI '07 #4 Umnožak

on Aug. 6, 2025, 4:04 a.m.

25pp

weighted 81% (20pp)

100 / 100

AC | C++20

APIO '11 P1 - Table Coloring

on May 18, 2025, 2:58 a.m.

25pp

weighted 77% (19pp)

100 / 100

AC | C++20

COCI '07 Contest 5 #6 Baza

on Oct. 18, 2024, 11:59 p.m.

25pp

weighted 74% (18pp)

15 / 15

AC | C++20

CCC '17 S5 - RMT

on Oct. 28, 2025, 4:10 a.m.

20pp

weighted 70% (14pp)

15 / 15

AC | C++20

CCC '18 S5 - Maximum Strategic Savings

on Oct. 12, 2025, 1:24 a.m.

20pp

weighted 66% (13pp)

15 / 15

AC | C++20

CCC '10 S5 - Nutrient Tree

on Aug. 16, 2025, 2:01 p.m.

20pp

weighted 63% (13pp)

Problem	Score
An Animal Contest 1 P1 - Alpaca Shapes	3 / 3
An Animal Contest 1 P2 - Alpaca Racing	5 / 5
An Animal Contest 1 P3 - Happy Alpacas	7 / 7
An Animal Contest 1 P4 - Alpaca Arrays	10 / 10
An Animal Contest 1 P6 - Alpaca Distancing	12 / 12
An Animal Contest 2 P0 - Koala Matchmaking	3 / 3
An Animal Contest 2 P3 - Koala Balloons	12 / 12
An Animal Contest 3 P3 - Monkey Market	7 / 7
An Animal Contest 3 P4 - Monkey Mayhem	7 / 7
An Animal Contest 3 P5 - Monkey Canoe	12 / 12
An Animal Contest 4 P2 - Lavish Lights	10 / 10
An Animal Contest 4 P3 - Snowy Slopes	10 / 10
An Animal Contest 4 P4 - Reindeer Racing	10 / 10
An Animal Contest 5 P2 - Permutations & Products	5 / 5
An Animal Contest 5 P2 (Hard Version) - Permutations & Primes	10 / 10
An Animal Contest 5 P3 - Ski Resort	10 / 10
An Animal Contest 5 P4 - Number Game	12 / 12
An Animal Contest 6 P2 - G-Pop	7 / 7

Problem	Score
Another Contest 1 Problem 3 - Poutine	10 / 10
Another Contest 2 Problem 1 - Poutine	15 / 15
Another Contest 2 Problem 2 - Poutine	10 / 10
Another Contest 3 Problem 1 - Diverse Arrays	7 / 7
Another Contest 3 Problem 4 - Range Updates and Range Queries	15 / 15
Another Contest 5 Problem 5 - Another Cheese Problem	12 / 12
Another Contest 7 Problem 2 - Code Review	7 / 7
Another Contest 7 Problem 3 - Network Connections	10 / 10

Problem	Score
APIO '07 P2 - Backup	2.500 / 25
APIO '10 P2 - Patrol	20 / 20
APIO '11 P1 - Table Coloring	25 / 25
APIO '14 P3 - Beads and Wires	3.250 / 25

Problem	Score
Baltic OI '07 P5 - Connected Points	15 / 15
Baltic OI '10 P5 - Candies	17 / 17
Baltic OI '13 P2 - Palindrome-Free Numbers	15 / 15
Baltic OI '13 P5 - Tracks in the Snow	12 / 12
Baltic OI '19 P2 - Nautilus	15 / 15

Problem	Score
CCC '00 J1 - Calendar	5 / 5
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	10 / 10
CCC '01 J1 - Dressing Up	3 / 3
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '01 S4 - Cookies	10 / 10
CCC '01 S5 - Post's Correspondence Problem	10 / 10
CCC '02 S3 - Blindfold	10 / 15
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 S5 - Trucking Troubles	10 / 10
CCC '04 J1 - Squares	3 / 3
CCC '04 J5 - Fractals	10 / 10
CCC '04 S4 - Space Turtle	10 / 10
CCC '04 S5 - Super Plumber	10 / 10
CCC '05 J1 - The Cell Sell	3 / 3
CCC '05 J2 - RSA Numbers	3 / 3
CCC '05 J5 - Bananas	10 / 10
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 J5 - CCC Othello	10 / 10
CCC '06 S3 - Tin Can Telephone	6 / 12
CCC '06 S4 - Groups	10 / 10
CCC '06 S5 - Origin of Life	15 / 15
CCC '07 J1 - Who is in the Middle?	3 / 3
CCC '07 J5 - Keep on Truckin'	7 / 7
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 S1 - It's Cold Here!	5 / 5
CCC '08 S3 - Maze	7 / 7
CCC '08 S4 - Twenty-four	10 / 10
CCC '08 S5 - Nukit	10 / 10
CCC '09 J1 - ISBN	3 / 3
CCC '09 J4 - Signage	7 / 7
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 J1 - What is n, Daddy?	3 / 3
CCC '10 J5 - Knight Hop	7 / 7
CCC '10 S4 - Animal Farm	15 / 15
CCC '10 S5 - Nutrient Tree	20 / 20
CCC '11 J2 - Who Has Seen The Wind	5 / 5
CCC '11 J5 - Unfriend	7 / 7
CCC '11 S1 - English or French?	5 / 5
CCC '11 S3 - Alice Through the Looking Glass	10 / 10
CCC '11 S5 - Switch	12 / 12
CCC '12 J2 - Sounds fishy!	3 / 3
CCC '12 S3 - Absolutely Acidic	7 / 7
CCC '12 S4 - A Coin Game	15 / 15
CCC '12 S5 - Mouse Journey	7 / 7
CCC '13 J2 - Rotating letters	3 / 3
CCC '13 S1 - From 1987 to 2013	5 / 5
CCC '13 S3 - Chances of Winning	10 / 10
CCC '13 S4 - Who is Taller?	7 / 7
CCC '14 S4 - Tinted Glass Window	15 / 15
CCC '15 J5 - π-day	10 / 10
CCC '15 S3 - Gates	10 / 10
CCC '15 S4 - Convex Hull	15 / 15
CCC '15 S5 - Greedy For Pies	17 / 17
CCC '16 S3 - Phonomenal Reviews	12 / 12
CCC '16 S4 - Combining Riceballs	15 / 15
CCC '17 J1 - Quadrant Selection	3 / 3
CCC '17 S4 - Minimum Cost Flow	17 / 17
CCC '17 S5 - RMT	20 / 20
CCC '18 J1 - Telemarketer or not?	3 / 3
CCC '18 J5 - Choose your own path	7 / 7
CCC '18 S3 - RoboThieves	10 / 10
CCC '18 S4 - Balanced Trees	15 / 15
CCC '18 S5 - Maximum Strategic Savings	20 / 20
CCC '19 J1 - Winning Score	3 / 3
CCC '19 J5 - Rule of Three	10 / 20
CCC '19 S3 - Arithmetic Square	12 / 12
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 S2 - Modern Art	7 / 7
CCC '21 S3 - Lunch Concert	10 / 10
CCC '21 S4 - Daily Commute	12 / 12
CCC '22 S5 - Good Influencers	17 / 17
CCC '23 J1 - Deliv-e-droid	3 / 3
CCC '23 S1 - Trianglane	5 / 5
CCC '23 S2 - Symmetric Mountains	7 / 7
CCC '23 S3 - Palindromic Poster	10 / 10
CCC '23 S5 - The Filter	20 / 20
CCC '24 S1 - Hat Circle	3 / 3
CCC '24 S4 - Painting Roads	12 / 12
CCC '25 S3 - Pretty Pens	10 / 10
CCC '25 S4 - Floor is Lava	12 / 12
CCC '25 S5 - To-Do List	17 / 17
CCC '96 S2 - Divisibility by 11	7 / 7
CCC '96 S5 - Maximum Distance	0.700 / 7
CCC '99 S4 - A Knightly Pursuit	12 / 12
CCOQR '16 - Stupendous Bowties	10 / 10
CCOQR '16 - Data Structure	15 / 15

User hxian

Points breakdown

AAC (152 points)

ACC (86 points)

APIO (50.750 points)

Baltic OI (74 points)

Bubble Cup (10 points)

Bulgarian OI (12 points)

CCC (1009.700 points)

CCO (551.223 points)

CEOI (10 points)

China NOI (30 points)

Classics (37 points)

COCI (1052 points)

Data Structure Tests (52 points)

DMOPC (847.500 points)

DWITE (143 points)

ECOO (72 points)

EGOI (10 points)

GFSSOC (46 points)

ICPC (24 points)

IOI (420 points)

JOI (25 points)

Mock CCC (88.400 points)

Mock CCO (49 points)

Olympiads School (22 points)

SAC Coding Challenge (83 points)

Seasonal (193 points)

SIUCF (15 points)

TLE (38.600 points)

TSOC (14 points)

Uncategorized (1481.597 points)

VM7WC (64 points)

WAC (29 points)

Woburn Challenge (205.609 points)

YAC (86.300 points)

Problem	Score
CCO '00 P5 - Millikan's Oil Droplet Experiment	7 / 7
CCO '01 P1 - The Monkey Dance	10 / 10
CCO '01 P3 - Partitions	12 / 12
CCO '01 P5 - Fast Food	7 / 7
CCO '02 P2 - Game Show Math	12 / 12
CCO '02 P5 - Connect The Campus	12 / 12
CCO '03 P5 - Longest Substring	7 / 7
CCO '04 P2 - Hockey Scores	12 / 12
CCO '05 P4 - Primed Sequences	12 / 12
CCO '05 P5 - Segments	5.556 / 10
CCO '06 P1 - CN Tower	5 / 5
CCO '07 P1 - Cows	10 / 10
CCO '07 P2 - Snowflakes	10 / 10
CCO '07 P3 - Bowling for Numbers++	4.667 / 20
CCO '08 P1 - Moving Day	7 / 7
CCO '08 P5 - Candy	7 / 7
CCO '09 P6 - A Weighty Problem	12 / 12
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 P1 - Choose Your Own Arithmetic	7 / 7
CCO '12 P2 - The Hungary Games	15 / 15
CCO '12 P5 - Sample Size	7 / 7
CCO '13 P2 - Tourney	12 / 12
CCO '13 P3 - LHC	12 / 12
CCO '13 P4 - A Romantic Movie Outing	20 / 20
CCO '14 P1 - Troyangles	10 / 10
CCO '14 P2 - King Gruff	15 / 15
CCO '14 P3 - Werewolf	17 / 17
CCO '14 P4 - Where's That Fuel?	7 / 7
CCO '14 P5 - Early Exam Evacuation	20 / 20
CCO '15 P2 - Artskjid	15 / 15
CCO '15 P4 - Cars on Ice	10 / 10
CCO '16 P4 - O Canada	10 / 10
CCO '16 P5 - Zombie Apocalypse	15 / 15
CCO '17 P1 - Vera and Trail Building	7 / 7
CCO '18 P1 - Geese vs. Hawks	10 / 10
CCO '19 P5 - Marshmallow Molecules	15 / 15
CCO '20 P2 - Exercise Deadlines	15 / 15
CCO '20 P4 - Travelling Salesperson	25 / 25
CCO '22 P1 - Alternating Heights	12 / 12
CCO '23 P1 - Binaria	12 / 12
CCO '96 P1 - Train Swapping	5 / 5
CCO '96 P4 - Where's Waldorf?	7 / 7
CCO '96 P5 - All Roads Lead Where?	7 / 7
CCO '97 P2 - Alien Invasion	10 / 10
CCO '98 P5 - Text Segmentation	10 / 10
CCO '99 P1 - You Can't Get There From Here	7 / 7
CCO '99 P4 - Maple Roundup	10 / 10

Problem	Score
NOI '04 P1 - The Depressed Cashier	20 / 20
NOI '14 P1 - Getting-Up Syndrome	10 / 10

Problem	Score
Sorting	3 / 3
Longest Common Subsequence	7 / 7
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 #3 Kolone	7 / 7
COCI '06 Contest 2 #4 Sjecišta	7 / 7
COCI '06 Contest 2 #5 Stol	12 / 12
COCI '06 Contest 3 #5 Bicikli	15 / 15
COCI '06 Contest 4 #4 Zbrka	12 / 12
COCI '06 Contest 4 #5 Jogurt	12 / 12
COCI '06 Contest 5 #6 Dvaput	15 / 15
COCI '07 Contest 3 #5 Cudak	15 / 15
COCI '07 Contest 4 #4 Muzicari	10 / 10
COCI '07 Contest 5 #3 Jabuke	7 / 7
COCI '07 Contest 5 #6 Baza	25 / 25
COCI '07 Contest 6 #2 Semafori	7 / 7
COCI '08 Contest 2 #3 Perket	7 / 7
COCI '08 Contest 2 #4 Svada	10 / 10
COCI '08 Contest 2 #5 Setnja	7 / 7
COCI '08 Contest 5 #3 Jagoda	7 / 7
COCI '08 Contest 6 #4 Cuskija	10 / 10
COCI '09 Contest 1 #3 Dobra	7 / 7
COCI '09 Contest 2 #4 Vuk	10 / 10
COCI '09 Contest 3 #4 Razgovori	10 / 10
COCI '09 Contest 4 #3 IKS	7 / 7
COCI '09 Contest 4 #4 Ograda	15 / 15
COCI '09 Contest 4 #5 Kaboom	12 / 12
COCI '09 Contest 5 #3 Kletva	7 / 7
COCI '09 Contest 5 #4 Zuma	15 / 15
COCI '09 Contest 7 #2 Cokolada	7 / 7
COCI '09 Contest 7 #4 Svemir	12 / 12
COCI '10 Contest 1 #3 Sretan	7 / 7
COCI '10 Contest 1 #5 Tabovi	10 / 10
COCI '10 Contest 2 #3 Igra	7 / 7
COCI '10 Contest 3 #4 Znanstvenik	7 / 7
COCI '10 Contest 3 #5 Diferencija	12 / 12
COCI '10 Contest 4 #3 Astro	7 / 7
COCI '10 Contest 4 #4 Prosjek	7 / 7
COCI '10 Contest 5 #4 Honi	10 / 10
COCI '10 Contest 5 #5 Dvoniz	12 / 12
COCI '10 Contest 7 #3 Gitara	7 / 7
COCI '11 Contest 1 #2 Matrix	7 / 7
COCI '11 Contest 1 #3 X3	7 / 7
COCI '11 Contest 1 #4 Ples	10 / 10
COCI '11 Contest 2 #2 Okret	7 / 7
COCI '11 Contest 2 #3 Zadaća	7 / 7
COCI '11 Contest 3 #3 Pogodak	10 / 10
COCI '11 Contest 3 #5 Plaće	12 / 12
COCI '11 Contest 4 #2 Zima	7 / 7
COCI '11 Contest 4 #3 Keks	7 / 7
COCI '11 Contest 4 #4 Ograda	10 / 10
COCI '11 Contest 6 #4 Rez	10 / 10
COCI '11 Contest 6 #5 Pastele	12 / 12
COCI '12 Contest 2 #3 Lanci	7 / 7
COCI '12 Contest 2 #4 Popust	10 / 10
COCI '12 Contest 3 #3 Malcolm	7 / 7
COCI '12 Contest 4 #4 Razlika	12 / 12
COCI '13 Contest 1 #3 Ratar	15 / 15
COCI '13 Contest 4 #3 Sumo	10 / 10
COCI '13 Contest 5 #2 Obilazak	7 / 7
COCI '13 Contest 6 #2 Font	7 / 7
COCI '14 Contest 2 #3 Studentsko	12 / 12
COCI '14 Contest 6 #4 Kratki	10 / 10
COCI '14 Contest 7 #3 ACM	12 / 12
COCI '14 Contest 7 #5 Prosjek	15 / 15
COCI '15 Contest 1 #6 Uzastopni	20 / 20
COCI '15 Contest 2 #2 Geppetto	7 / 7
COCI '15 Contest 2 #3 Artur	10 / 10
COCI '15 Contest 2 #5 Vudu	15 / 15
COCI '15 Contest 4 #3 Deathstar	7 / 7
COCI '15 Contest 4 #4 Chewbacca	12 / 12
COCI '15 Contest 5 #3 Perica	10 / 10
COCI '15 Contest 5 #4 Poplava	12 / 12
COCI '15 Contest 6 #3 Pianino	10 / 10
COCI '15 Contest 7 #4 Otpor	12 / 12
COCI '16 Contest 1 #2 Jetpack	7 / 7
COCI '16 Contest 4 #3 Kas	10 / 10
COCI '16 Contest 5 #4 Ronald	12 / 12
COCI '16 Contest 5 #5 Poklon	17 / 17
COCI '16 Contest 6 #5 Sirni	15 / 15
COCI '16 Contest 7 #4 Poklon	15 / 15
COCI '19 Contest 5 #5 Zapina	10 / 10
COCI '19 Contest 6 #5 Trener	15 / 15
COCI '20 Contest 1 #2 Bajka	7 / 7
COCI '20 Contest 3 #1 Knjige	7 / 7
COCI '20 Contest 4 #5 Patkice II	15 / 15
COCI '20 Contest 5 #2 Po	7 / 7
COCI '20 Contest 5 #3 Magenta	12 / 12
COCI '21 Contest 1 #2 Kamenčići	10 / 10
COCI '21 Contest 5 #2 Dijamant	10 / 10
COCI '21 Contest 6 #3 Naboj	10 / 10
COCI '22 Contest 2 #2 Ekspert	10 / 10
COCI '22 Contest 3 #4 Bomboni	12 / 12
COCI '22 Contest 4 #2 Zrinka	10 / 10
COCI '23 Contest 1 #3 AN2DL	12 / 12
COI '06 #1 Patrik	12 / 12
COI '07 #4 Umnožak	25 / 25
COI '15 #4 Torrent	25 / 25
COCI '06 Regional #3 Firefly	10 / 10
COCI '07 Regional #1 Platforme	7 / 7
COCI '07 Regional #2 Nikola	10 / 10

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

Problem	Score
DMOPC '13 Contest 1 P4 - AFK	7 / 7
DMOPC '13 Contest 3 P3 - Crossing Field	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 P3 - Sawmill	7 / 7
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
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 '14 Exam Time P4 - Exam Delay	10 / 10
DMOPC '14 Exam Time P5 - Happy Teachers	15 / 15
DMOPC '15 Contest 1 P5 - Lelei and Dragon Scales	10 / 10
DMOPC '15 Contest 2 P4 - Personal Assistant	12 / 12
DMOPC '15 Contest 2 P6 - Manhattan Magnets	17 / 17
DMOPC '15 Contest 3 P3 - Dimethylbenzene	7 / 7
DMOPC '15 Contest 3 P4 - Contagion	12 / 12
DMOPC '15 Contest 3 P5 - Total Annihilation	15 / 15
DMOPC '15 Contest 4 P4 - Great Sequence	10 / 10
DMOPC '15 Contest 5 P4 - Steins;Number	12 / 12
DMOPC '15 Contest 5 P5 - World Line Convergence	15 / 15
DMOPC '15 Contest 6 P3 - Harvest	7 / 7
DMOPC '15 Contest 6 P4 - Line Graph	10 / 10
DMOPC '15 Contest 6 P5 - A Classic Problem	10 / 10
DMOPC '16 Contest 1 P3 - Shoe Shopping	7 / 7
DMOPC '16 Contest 1 P4 - Tree Appraisal	15 / 15
DMOPC '16 Contest 2 P2 - Ebola Outbreak	7 / 7
DMOPC '16 Contest 2 P3 - Queries	7 / 7
DMOPC '16 Contest 2 P4 - Zeros	7 / 7
DMOPC '16 Contest 2 P6 - Console Simulator 2017	12 / 12
DMOPC '16 Contest 3 P3 - Phantom Fight	10 / 10
DMOPC '16 Contest 4 P6 - Molly and Flying Drones	15 / 15
DMOPC '17 Contest 1 P3 - Hitchhiking Fun	7 / 7
DMOPC '17 Contest 1 P4 - Quests	12 / 12
DMOPC '17 Contest 1 P5 - Intimidating Arrays	15 / 15
DMOPC '17 Contest 3 P3 - N-Kat	10 / 10
DMOPC '17 Contest 4 P2 - A Heavy Light Decomposition Problem	7 / 7
DMOPC '17 Contest 5 P3 - Mimi and Primes	7 / 7
DMOPC '17 Contest 5 P5 - XOR Bridges	15 / 15
DMOPC '18 Contest 1 P3 - Sorting	12 / 12
DMOPC '18 Contest 3 P2 - Bob and French Class	7 / 7
DMOPC '18 Contest 4 P2 - Dr. Henri and Responsibility	7 / 7
DMOPC '18 Contest 4 P3 - Dr. Henri and Ionization	10 / 10
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 P2 - Squares	7 / 7
DMOPC '19 Contest 2 P3 - Selection	12 / 12
DMOPC '19 Contest 4 P3 - Taking Cues	12 / 12
DMOPC '19 Contest 6 P2 - Grade 10 Math	7 / 7
DMOPC '19 Contest 6 P3 - Grade 11 Math	10 / 10
DMOPC '19 Contest 6 P4 - Grade 12 Math	15 / 15
DMOPC '19 Contest 7 P3 - Tree Pruning	12 / 12
DMOPC '19 Contest 7 P4 - Bob and Continued Fractions	20 / 20
DMOPC '20 Contest 1 P4 - Victor Makes Bank	17 / 17
DMOPC '20 Contest 2 P3 - Roadrollification	10 / 10
DMOPC '20 Contest 3 P2 - Bob and Parallel-Ks	7 / 7
DMOPC '20 Contest 3 P3 - A Ring of Buckets	12 / 12
DMOPC '20 Contest 3 P4 - Bob and Typography	2 / 15
DMOPC '20 Contest 4 P3 - Roving Roombas	12 / 12
DMOPC '20 Contest 6 P2 - Interpretive Art	7 / 7
DMOPC '20 Contest 7 P1 - Bob and Balance	7 / 7
DMOPC '20 Contest 7 P2 - Alice and Tiles	10 / 10
DMOPC '21 Contest 10 P3 - Peculiar Reflections	12 / 12
DMOPC '21 Contest 10 P5 - Number Theory	20 / 20
DMOPC '21 Contest 3 P2 - Weak Data	10 / 10
DMOPC '21 Contest 4 P3 - Palindromic Presents	12 / 12
DMOPC '21 Contest 5 P2 - Permutations & Primes	7 / 7
DMOPC '21 Contest 8 P2 - Kanna Market	10 / 10
DMOPC '21 Contest 9 P2 - String Puzzle	7 / 7
DMOPC '22 Contest 2 P3 - Good Permutations	12 / 12
DMOPC '22 Contest 5 P2 - Absolutely Even	7 / 7
DMOPC '22 Contest 5 P3 - Sorted XOR	12 / 12
DMOPC '22 Contest 5 P6 - Threes and Twos	20 / 20
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
DMOPC '23 Contest 1 P5 - Perfect Matching	5 / 25
DMPG '15 B4 - Maximum Product	7 / 7
DMPG '15 S2 - MMORPG	5 / 5
DMPG '17 B4 - Bad Sort	7 / 7
DMPG '17 S2 - Anime Conventions	10 / 10
DMPG '18 G1 - Musical Chairs	10 / 10
DMPG '19 S3 - Chemical Counting Capers	10 / 10

Problem	Score
DWITE '06 R5 #5 - Prime Palindromes	10 / 10
DWITE '07 R1 #5 - Velociraptor Maze	7 / 7
DWITE '07 R2 #3 - Floor Plan	7 / 7
DWITE '07 R3 #3 - Playlist	7 / 7
DWITE '07 R3 #4 - The Convex Fence Company	10 / 10
DWITE '07 R3 #5 - Portals	7 / 7
DWITE '08 R2 #4 - Big shiny tunes	7 / 7
DWITE '08 R3 #4 - Time for change	7 / 7
DWITE '08 R4 #3 - Secret party	7 / 7
DWITE '09 R6 #4 - Time for Change	7 / 7
DWITE '09 R7 #5 - Snapper Chain	10 / 10
DWITE '10 R4 #4 - Mountain Hiking	7 / 7
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 '11 R3 #5 - Tautology	10 / 10
DWITE '12 R2 #4 - Magic Trick	7 / 7
DWITE '12 R5 #3 - Triangle Count	7 / 7
DWITE '12 R5 #5 - Pattern Lock	7 / 7

Problem	Score
ECOO '13 R1 P2 - The Luhn Algorithm	5 / 5
ECOO '14 R2 P4 - What Lies Ahead	10 / 10
ECOO '15 R3 P1 - Just the Factoradics, Ma'am	7 / 7
ECOO '16 R2 P1 - Palindrome Panic	12 / 12
ECOO '17 R2 P4 - Zig Zag	12 / 12
ECOO '18 R2 P3 - Factorial	12 / 12
ECOO '19 R3 P1 - Chords	7 / 7
ECOO '21 P4 - Chris' Candy	7 / 7

Problem	Score
GFSS Christmas Challenge P4 - Coal Counting	7 / 7
GFSSOC '14 Winter S4 - Stalactites	17 / 17
GFSSOC '15 Fall J4 - Marathon	7 / 7
GFSSOC '15 Fall S4 - Mostly Talking	15 / 15

Problem	Score
ICPC NWERC 2011 A - Binomial Coefficients	10 / 10
ICPC PACNW 2016 A - Alphabet	7 / 7
ICPC PACNW 2016 H - Paint	7 / 7

Problem	Score
IOI '00 P1 - Palindrome	10 / 10
IOI '00 P4 - Walls	12 / 12
IOI '01 P1 - Mobile Phones	15 / 15
IOI '01 P2 - Ioiwari Game	12 / 12
IOI '04 P4 - Phidias	10 / 10
IOI '05 P2 - Mountain	20 / 20
IOI '05 P3 - Mean Sequence	12 / 12
IOI '05 P4 - Birthday	12 / 12
IOI '06 P4 - The Valley of Mexico	15 / 15
IOI '08 P1 - Type Printer	12 / 12
IOI '09 P2 - Hiring	12 / 12
IOI '09 P6 - Mecho	10 / 10
IOI '10 P6 - Traffic Congestion (Standard I/O)	10 / 10
IOI '13 P1 - Dreaming	15 / 15
IOI '13 P1 - Dreaming (Standard I/O)	15 / 15
IOI '14 P4 - Gondola	15 / 15
IOI '14 P4 - Gondola (Standard I/O)	15 / 15
IOI '14 P5 - Friend	30 / 30
IOI '14 P5 - Friend (Standard I/O)	30 / 30
IOI '14 Practice Task 2 - Station	7 / 7
IOI '14 Practice Task 3 - Tile	10 / 10
IOI '15 P4 - Horses	15 / 15
IOI '15 P4 - Horses (Standard I/O)	15 / 15
IOI '15 P6 - Towns	10 / 40
IOI '16 P1 - Detecting Molecules	12 / 12
IOI '16 P1 - Detecting Molecules (Standard I/O)	12 / 12
IOI '19 P1 - Arranging Shoes	15 / 15
IOI '94 P1 - The Triangle	7 / 7
IOI '96 P1 - A Game	10 / 10
IOI '96 P4 - Sorting a Three-Valued Sequence	10 / 10
IOI '98 P4 - Picture	15 / 15

Problem	Score
JOI '16 Final P1 - Foehn Phenomena	10 / 10
JOI '17 Final P4 - Commuter Pass	15 / 15

Problem	Score
Mock CCC '15 J5 - Royal Guard	10 / 10
Mock CCC '22 2 S2 - Kaguya Wants to Grow the Student Council	10 / 10
Mock CCC '23 2 S1 - Composite Fibonacci Numbers	3 / 3
Mock CCC '18 Contest 1 J5/S3 - A Simulation Problem	7 / 7
Mock CCC '18 Contest 1 S4 - A Graph Problem	12 / 12
Mock CCC '18 Contest 2 J5/S3 - A Coloring Problem	10 / 10
Mock CCC '18 Contest 2 S4 - A Tree Problem	10.400 / 12
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity	7 / 7
Mock CCC '19 Contest 1 J5 - Pusheen Designs a Sushi Boat	7 / 7
Mock CCC '19 Contest 1 S4 - Pusheen Plays Neko Atsume	12 / 12

Problem	Score
CCO Preparation Test 1 P3 - K-th Rank Student	17 / 17
CCO Preparation Test 2 P1 - Concatenation	17 / 17
Mock CCO '18 Contest 4 Problem 3 - Counterattack	15 / 15

Problem	Score
SAC '21 Code Challenge P5 - Friends of Friends	7 / 7
SAC '22 Code Challenge 1 P4 - That Problem	7 / 7
SAC '22 Code Challenge 1 P5 - That Wall	12 / 12
SAC '22 Code Challenge 2 P4 - Cookie Galore	10 / 10
SAC '22 Code Challenge 2 P5 - Even Colouring	10 / 10
SAC '22 Code Challenge 3 Junior P5 - Normal Encoding	10 / 10
SAC '22 Code Challenge 4 Junior P5 - Obligatory Output Only Problem	10 / 10
SAC '22 Code Challenge 4 P4 - Obligatory Subarray Problem	10 / 10
SAC '22 Code Challenge 5 Junior P4 - Course Requirements	7 / 7

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back To School '16: Dodgeball	7 / 7
Back To School '16: Cherry Tree	12 / 12
Back To School '16: Times Table	17 / 17
Canada Day Contest 2021 - CCC Bad Haha	12 / 12
Death Gun	7 / 7
Halloween '14 P3 - Dog Girls	15 / 15
Max's Anger Contest Series 2 P3 - Array Anger	7 / 7
MEC '16 P3 - Getting Good at Programming	10 / 10
Miracle Sort	3 / 3
MNYC '16: Rocks	15 / 15
MNYC '17: Hurontario	10 / 10
MNYC '17: Removing Christmas Trees	15 / 15
Piggy	7 / 7
Triway Cup '18 Summer B - Beautiful Water Pearl	7 / 7
Triway Cup '18 Summer E - Eyes of Void	7 / 7
Too Simple	7 / 7
Is it a Tree?	7 / 7
Valentine's Day '15 P2 - Simon and Marcy	7 / 7
New Year's '17 P1 - Mr. N and Presents	7 / 7
New Year's '18 P4 - The Polar Express	7 / 7

Problem	Score
TLE '15 P2 - Microwaves	12 / 12
TLE '16 Contest 3 P3 - Mysterious Package	10 / 10
TLE '17 Contest 3 P4 - Meatballs	9.600 / 12
TLE '17 Contest 4 P3 - Fax's Christmas Dish	7 / 7

Problem	Score
TSOC '15 Contest 1 #5 - Giant Ants	7 / 7
TSOC '16 Contest 2 #4 - Bob's Primes	7 / 7

Problem	Score
16 BIT S/W ONLY	3 / 3
2spooky4me	7 / 7
Mispelling	3 / 3
Mirrored Pairs	3 / 3
Triple Fat Ladies	5 / 5
Appleby Contest '19 P5 - Matrix Operation	10 / 10
Appleby Contest '20 P3 - Ridiculous String	10 / 10
A Coin Problem	12 / 12
A Digit Problem	12 / 12
Arcadia Computing Contest 2 P5 - lp0 is on fire!	10 / 10
Sum of Primes 2	5 / 5
Amplitude Hackathon '23 Practice Problem 2 - Go Amplitude!	5 / 5
Troubling Times	5 / 5
Andrew Needs Help	12 / 12
A Noisy Class	7 / 7
A Plus B	3 / 3
Another Random Contest 1 P1 - Chessgame	1.500 / 5
Another Random Contest 1 P3 - Physics Olympics	7 / 7
Another Random Contest 1 P5 - A Strange Country	15 / 15
Art Academy VII: A Mysterious Object	12 / 12
List Minimum (Easy)	3 / 3
String Finding	5 / 5
Bob Hates Triangles	7 / 7
Boolean	3 / 3
BPC 1 S2 - Train Commute	12 / 12
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
Carnival Game	7 / 7
Coin Change	7 / 7
Checkerboard Summation (Easy)	12 / 12
Cheerio Contest 1 S2 - School Expansion	7 / 7
Cheerio Contest 1 S5 - Coin Game	15 / 15
Cheerio Contest 2 P3 - Digits	0.667 / 5
Cheerio Contest 2 P5 - Subsequence Queries	7 / 7
Cheerio Contest 3 P1 - Wet Floor	5 / 5
Cheerio Contest 3 P2 - Double-O-Seven	5 / 5
Cheerio Contest 3 P3 - Everything Array	12 / 12
Cheerio Contest 3 P4 - Bit Flips	12 / 12
CPC '21 Contest 1 P2 - AQT and Multiset	7 / 7
CPC '21 Contest 1 P4 - AQT and Directed Graph	12 / 12
Dr. Anne Anderson Coding Contest 1 P1 - Due Dates	3 / 3
Dr. Anne Anderson Coding Contest 1 P2 - Pokemon Battles	3 / 3
Dr. Anne Anderson Coding Contest 1 P3 - The Unwritten Rules	5 / 5
Dr. Anne Anderson Coding Contest 1 P4 - Lighting	5 / 5
Dr. Anne Anderson Coding Contest 1 P5 - Guessing Grades	7 / 7
Dr. Anne Anderson Coding Contest 1 P6 - Designing An Academic Course Calendar	10 / 10
Dilhan's Computing Contest 1 P1 - The Cathedral of Learning	3 / 3
Dilhan's Computing Contest 1 P2 - Square Sum	12 / 12
Dilhan's Computing Contest 1 P3 - Soccer Court	10 / 10
Dilhan's Computing Contest 1 P4 - Increasing Sequence With Gap	3.400 / 17
Double Doors Regional P5 - Tudor Eats Ice Cream Cones	15 / 15
Please Help Me	15 / 15
Maximum Sum	7 / 7
Longest Increasing Subsequence	7 / 7
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 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 R - Walk	15 / 15
Educational DP Contest AtCoder S - Digit Sum	12 / 12
Educational DP Contest AtCoder V - Subtree	20 / 20
Educational DP Contest AtCoder X - Tower	20 / 20
Educational DP Contest AtCoder Z - Frog 3	20 / 20
Power Distribution	7 / 7
Assembly Elves	8.600 / 10
Exam Prep	7 / 7
Fast Factorial Calculator	7 / 7
Fibonacci Sequence	15 / 15
Fibonacci Sequence (Harder)	17 / 17
GCC '16 P1 - Watching Anime	10 / 10
GlobeX Cup '18 S3 - Playing With Bits	10 / 10
Good Sets	10 / 10
King Graff's Trip	15 / 15
Graph Contest 1 P1 - Counting Paths	10 / 10
Graph Contest 2 P1 - Connected Components	7 / 7
Graph Contest 2 P2 - Directed Acyclic Graph	10 / 10
Hardcore Grinding	5 / 5
HCI '16 - Danger Room	7 / 7
HCI '16 - Foodie	7 / 7
HCI '16 - Oversleep	7 / 7
HCI '16 - Xorpow	10 / 10
Hello, World!	3 / 3
HHPC1 P1 - Yielding the Longest Substring	5 / 5
HHPC1 P4 - Yet Another A+B Problem	10 / 10
Knapsack 3	10 / 10
Largest Permutation	7 / 7
Levve Loves Segment Trees	15 / 15
Linked List	20 / 20
LKP '18 Contest 1 P4 - Fun in Föràg	15 / 15
MALD Contest 1 P3 - Scratch Cat and Infestation	7 / 7
A Math Contest P10 - Tricky Multisets	12 / 12
A Math Contest P4 - Circle Cutting	7 / 7
A Math Contest P5 - Good Arrays	7 / 7
MCIPC Contest 2 P2 - Icicles	3 / 3
MMCC '15 P1 - Inaho	15 / 15
Multiplication Madness	7 / 7
N-K Special	10 / 10
OCC '19 S2 - Rimuru's Number Game	5 / 5
The Odd Number	7 / 7
One Small Favour	0.470 / 10
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
Prefix Digits	7 / 7
The Mirror	5 / 5
The Third Cellar	10 / 10
The Torture Chamber	15 / 15
VMSS Pre-Pre-Windsor P7 - Magical Bribery	7 / 7
There's a Hole in the Bucket	7 / 7
Primes 2	15 / 15
VMSS Pre-Windsor P7 - Going Back to the Definitions	7 / 7
QCC P6 - Freedom!	7 / 7
Rat In A Maze	5 / 5
Ray Needs Help	20 / 20
RGPC '17 P2 - Cubes are Life	7 / 7
RGPC '17 P4 - Snow Day	10 / 10
RGPC '17 P5 - Scrabble Nuts	12 / 12
RGPC '18 P3 - Chocolate Day	10 / 10
Richmond Green P4 - HEIGHT	7 / 7
South African Computer Olympiad 2008 Day 1 Problem 3 - Visiting Grandma	15 / 15
Singularity Cup P4 - Staircase Sum	17 / 17
The Cosmic Era P3 - Battle Positions	7 / 7
Dynamic Range Minimum Test	12 / 12
Summing A Sequence	7 / 7
SGS Programming Challenge P1 - XOR in Computer Class	7 / 7
Python Infinite Loop	7 / 7
Coding Spree	7 / 7
Segment Tree Practice 1	12 / 12
Segment Tree Practice 2	12 / 12
Segment Tree Practice 3	15 / 15
Segment Tree Practice 4	17 / 17
Sudoku Challenge	6.860 / 7
Sum Maximization	10 / 10
The Contest Contest 1 P1 - A Typical Codeforces Problem	5 / 5
The Contest Contest 1 P2 - A Typical CCC Senior Problem	10 / 10
The Contest Contest 1 P5 - A Typical CCO Problem	3 / 20
The Contest Contest 1 P6 - A Typical DMOPC Problem	3 / 30
Total Destruction	10 / 10
Traffic Lights	10 / 10
Tree Tasks	10 / 10
Tropical Bananas	10 / 10
UACC 1 P1 - Bench Press Bob	3 / 3
UCC Coding Competition '20 P4 - Bubble Tea	7 / 7
UCC Coding Competition '21 P2 - Emerald Exchange	5 / 5
UTS Open '21 P2 - Prime Array	10 / 10
UTS Open '21 P3 - Latin Class	10 / 10
UTS Open '24 P1 - Watering the Plants	5 / 5
UTS Open '24 P2 - Happy Gifts	7 / 7
UTS Open '24 P3 - LXghts Out	10 / 10
UTS Open '24 P4 - Political Espionage	12 / 12
UTS Open '24 P5 - Parity Challenge	5.100 / 17
UTS Open '24 P6 - Candygrams	2 / 20
Valentine's Day '19 J3 - Love!	7 / 7
William and Summation	7 / 7
XOR	7 / 7
XOR Sum	10 / 10

Problem	Score
VMSS '15 #0 - Head Data Slave Applications	10 / 10
VMSS '15 #2 - Tomb Robbing	7 / 7
VM7WC '15 #2 Silver - 4 Nations, 1 Secret	10 / 10
VM7WC '15 #2 Gold - Uniting the Earth Empire	12 / 12
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5
VM7WC '16 #4 Gold - Restoring Reputation	10 / 10
VM7WC '16 #6 Gold - Cold War Telecom	10 / 10

Problem	Score
Wesley's Anger Contest 4 Problem 2 - Squirrel Election	7 / 7
Wesley's Anger Contest 4 Problem 3 - Squirrel Tag	12 / 12
Wesley's Anger Contest 6 Problem 3 - Difference Sorting	10 / 10

Problem	Score
WC '07 P3 - Strategy Meeting	10 / 10
WC '15 Contest 1 S3 - Contest Sites	17 / 17
WC '15 Contest 2 S2 - Attack of the Clones	12 / 12
WC '15 Contest 4 S4 - Stakeout	20 / 20
WC '16 Finals S3 - Privacy	12 / 12
WC '17 Contest 2 S3 - Battle of the Pelennor Fields	12 / 12
WC '17 Contest 3 J3 - Uncrackable	5 / 5
WC '17 Contest 3 S2 - GleamingProudChickenFunRun	2.609 / 12
WC '17 Finals S2 - Cowmmunication Network	12 / 12
WC '17 Finals S4 - Ultimatum	17 / 17
WC '18 Contest 1 S3 - Reach for the Top	12 / 12
WC '18 Contest 1 S4 - Bad Influence	15 / 15
WC '18 Contest 3 S2 - Gym Tour	12 / 12
WC '18 Contest 4 S1 - World of StarCraft	10 / 10
WC '18 Contest 4 S2 - Farming Simulator	15 / 15
WC '18 Finals S2 - Top Billing	12 / 12
WC '95 P4 - Wildcard	10 / 10

Problem	Score
Yet Another Contest 1 P3 - Fluke	10 / 10
Yet Another Contest 6 P3 - No More Cell Phone Messaging	10 / 10
Yet Another Contest 7 P1 - Page Turning	5 / 5
Yet Another Contest 7 P2 - Coprime Grid	10 / 10
Yet Another Contest 7 P4 - Paparazzi	3.400 / 17
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
Yet Another Contest 8 P4 - Fluke 2	3.200 / 15
Yet Another Contest 9 P1 - Permutation Cutting	5 / 5
Yet Another Contest 9 P2 - Nim	7 / 7
Yet Another Contest 9 P3 - Divide and Delete	10 / 10
Yet Another Contest 9 P4 - Grid Push	4.500 / 15
Yet Another Contest 9 P6 - Tribes	3.800 / 25