User HongyiSun

Points breakdown

25 / 25

AC | C++20

CCO '11 P2 - Vampire Tunnels

on Feb. 16, 2026, 3:53 p.m.

15pp

weighted 100% (15pp)

25 / 25

AC | C++20

CCO '14 P2 - King Gruff

on Feb. 14, 2026, 2:21 a.m.

15pp

weighted 95% (14pp)

30 / 30

AC | C++20

CCC '06 S5 - Origin of Life

on Jan. 6, 2026, 12:19 a.m.

15pp

weighted 90% (14pp)

1 / 1

AC | C++20

Canada Day Contest 2021 - CCC Bad Haha

on Feb. 16, 2026, 12:30 a.m.

12pp

weighted 86% (10pp)

100 / 100

AC | C++20

An Animal Contest 2 P4 - Koala Gambling

on Feb. 14, 2026, 4:06 a.m.

12pp

weighted 81% (9.8pp)

10 / 10

AC | C++20

COCI '10 Contest 3 #5 Diferencija

on Feb. 14, 2026, 3:06 a.m.

12pp

weighted 77% (9.3pp)

15 / 15

AC | C++20

CCC '09 S5 - Wireless

on Feb. 7, 2026, 3:44 p.m.

12pp

weighted 74% (8.8pp)

100 / 100

AC | C++20

Baltic OI '13 P5 - Tracks in the Snow

on Jan. 9, 2026, 1:11 a.m.

12pp

weighted 70% (8.4pp)

10 / 10

AC | C++20

COCI '15 Contest 5 #4 Poplava

on Oct. 24, 2025, 3:19 a.m.

12pp

weighted 66% (8.0pp)

100 / 100

AC | C++20

DMOPC '15 Contest 5 P4 - Steins;Number

on Oct. 17, 2025, 9:15 p.m.

12pp

weighted 63% (7.6pp)

Problem	Score
An Animal Contest 1 P1 - Alpaca Shapes	3 / 3
An Animal Contest 2 P0 - Koala Matchmaking	3 / 3
An Animal Contest 2 P4 - Koala Gambling	12 / 12
An Animal Contest 3 P1 - Monkey Shopping	3 / 3
An Animal Contest 3 P2 - Monkey Potato	5 / 5
An Animal Contest 5 P2 - Permutations & Products	5 / 5

Problem	Score
Another Contest 3 Problem 1 - Diverse Arrays	7 / 7
Another Contest 7 Problem 3 - Network Connections	10 / 10

Problem	Score
CCC '00 S1 - Slot Machines	5 / 5
CCC '00 S3 - Surfing	7 / 7
CCC '01 S1 - Keeping Score	5 / 5
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '02 J2 - AmeriCanadian	3 / 3
CCC '02 S1 - The Students' Council Breakfast	5 / 5
CCC '03 J2 - Picture Perfect	1.200 / 3
CCC '03 S1 - Snakes and Ladders	5 / 5
CCC '03 S2 - Poetry	5 / 5
CCC '03 S3 - Floor Plan	7 / 7
CCC '04 J2 - Terms of Office	3 / 3
CCC '04 J3 - Smile with Similes	3 / 3
CCC '04 J4 - Simple Encryption	5 / 5
CCC '04 J5 - Fractals	10 / 10
CCC '04 S1 - Fix	5 / 5
CCC '04 S2 - TopYodeller	5 / 5
CCC '05 J1 - The Cell Sell	3 / 3
CCC '05 J2 - RSA Numbers	3 / 3
CCC '05 J3 - Returning Home	5 / 5
CCC '05 J4 - Cross Spiral	7 / 7
CCC '05 J5 - Bananas	10 / 10
CCC '05 S1 - Snow Calls	5 / 5
CCC '05 S2 - Mouse Move	5 / 5
CCC '05 S3 - Quantum Operations	10 / 10
CCC '06 J1 - Canadian Calorie Counting	3 / 3
CCC '06 J2 - Roll the Dice	3 / 3
CCC '06 J3 - Cell-Phone Messaging	3 / 3
CCC '06 J4 - It's tough being a teen!	7 / 7
CCC '06 S1 - Maternity	3.333 / 5
CCC '06 S2 - Attack of the CipherTexts	2 / 5
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 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 '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 S1 - It's Cold Here!	5 / 5
CCC '08 S2 - Pennies in the Ring	5 / 5
CCC '08 S3 - Maze	7 / 7
CCC '09 J1 - ISBN	3 / 3
CCC '09 J2 - Old Fishin' Hole	5 / 5
CCC '09 J3 - Good Times	5 / 5
CCC '09 J4 - Signage	5 / 5
CCC '09 S1 - Cool Numbers	5 / 5
CCC '09 S3 - Degrees Of Separation	10 / 10
CCC '09 S5 - Wireless	12 / 12
CCC '10 J1 - What is n, Daddy?	3 / 3
CCC '10 J2 - Up and Down	5 / 5
CCC '10 J3 - Punchy	5 / 5
CCC '10 J4 - Global Warming	5 / 5
CCC '10 J5 - Knight Hop	7 / 7
CCC '10 S2 - Huffman Encoding	5 / 5
CCC '11 J1 - Which Alien?	3 / 3
CCC '11 J2 - Who Has Seen The Wind	5 / 5
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 '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 S2 - Aromatic Numbers	5 / 5
CCC '12 S3 - Absolutely Acidic	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 S4 - Who is Taller?	7 / 7
CCC '14 J1 - Triangle Times	3 / 3
CCC '14 J2 - Vote Count	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 '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 S1 - Zero That Out	3 / 3
CCC '15 S2 - Jerseys	5 / 5
CCC '15 S3 - Gates	10 / 10
CCC '16 J1 - Tournament Selection	3 / 3
CCC '16 J2 - Magic Squares	3 / 3
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 J4 - Arrival Time	5 / 5
CCC '16 S2 - Tandem Bicycle	5 / 5
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 S2 - High Tide, Low Tide	5 / 5
CCC '17 S3 - Nailed It!	7 / 7
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 S2 - Sunflowers	5 / 5
CCC '19 J1 - Winning Score	3 / 3
CCC '19 J2 - Time to Decompress	3 / 3
CCC '19 J3 - Cold Compress	5 / 5
CCC '19 S1 - Flipper	3 / 3
CCC '19 S2 - Pretty Average Primes	5 / 5
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 S2 - Escape Room	10 / 10
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 '22 J1 - Cupcake Party	3 / 3
CCC '22 J2 - Fergusonball Ratings	3 / 3
CCC '22 J3 - Harp Tuning	5 / 5
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 S3 - Palindromic Poster	10 / 10
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	7 / 7
CCC '24 J5 - Harvest Waterloo	7 / 7
CCC '96 S5 - Maximum Distance	7 / 7
CCC '97 S1 - Sentences	5 / 5

Problem	Score
COCI '06 Contest 1 #2 Herman	5 / 5
COCI '06 Contest 2 #4 Sjecišta	7 / 7
COCI '07 Contest 5 #3 Jabuke	7 / 7
COCI '07 Contest 6 #1 Parking	5 / 5
COCI '07 Contest 6 #2 Semafori	7 / 7
COCI '08 Contest 2 #3 Perket	7 / 7
COCI '08 Contest 3 #1 Pet	5 / 5
COCI '09 Contest 1 #2 Domino	5 / 5
COCI '09 Contest 6 #2 Natjecanje	5 / 5
COCI '10 Contest 3 #5 Diferencija	12 / 12
COCI '12 Contest 4 #2 Esej	5 / 5
COCI '13 Contest 3 #1 Riječi	5 / 5
COCI '13 Contest 4 #2 Gmo	5 / 5
COCI '14 Contest 1 #1 Prosjek	5 / 5
COCI '14 Contest 2 #2 Utrka	5 / 5
COCI '15 Contest 2 #2 Geppetto	7 / 7
COCI '15 Contest 5 #4 Poplava	12 / 12
COCI '16 Contest 1 #2 Jetpack	7 / 7
COCI '16 Contest 5 #2 Pareto	5 / 5
COCI '16 Contest 6 #2 Telefoni	5 / 5
COCI '17 Contest 2 #2 ZigZag	5 / 5
COCI '18 Contest 4 #2 Wand	7 / 7
COCI '19 Contest 3 #1 Preokret	5 / 5
COCI '06 Regional #1 Bard	7 / 7
COCI '06 Regional #3 Firefly	10 / 10
COCI '07 Regional #1 Platforme	7 / 7

Problem	Score
DMOPC '13 Contest 3 P3 - Crossing Field	7 / 7
DMOPC '14 Contest 1 P3 - New Students	3 / 3
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
DMOPC '14 Contest 7 P2 - Tides	5 / 5
DMOPC '15 Contest 1 P2 - Itami and Squad	5 / 5
DMOPC '15 Contest 4 P2 - The Big Clock	5 / 5
DMOPC '15 Contest 4 P4 - Great Sequence	10 / 10
DMOPC '15 Contest 5 P4 - Steins;Number	12 / 12
DMOPC '16 Contest 4 P1 - Fast Exponents	5 / 5
DMOPC '17 Contest 1 P2 - Sharing Crayons	7 / 7
DMOPC '18 Contest 1 P1 - Sorting	5 / 5
DMOPC '18 Contest 6 P4 - Tank	10 / 10
DMOPC '19 Contest 3 P1 - Mode Finding	5 / 5
DMOPC '19 Contest 4 P1 - Valid Strings	5 / 5
DMOPC '19 Contest 7 P0 - Contest Feedback	3 / 3
DMOPC '20 Contest 1 P2 - Victor's Moral Dilemma	5 / 5
DMOPC '21 Contest 5 P1 - Permutations & Primes	5 / 5
DMOPC '21 Contest 9 P2 - String Puzzle	7 / 7
DMPG '19 S1 - Candy Shop Tycoon	5 / 5

User HongyiSun

Points breakdown

AAC (31 points)

ACC (17 points)

Baltic OI (12 points)

CCC (699.533 points)

CCO (40 points)

Classics (5 points)

COCI (167 points)

DMOPC (114 points)

DWITE (82 points)

GFSSOC (5 points)

Mock CCC (24 points)

SAC Coding Challenge (15 points)

Seasonal (41 points)

SIUCF (5 points)

TLE (15 points)

TSOC (7 points)

Uncategorized (171 points)

VM7WC (20 points)

Woburn Challenge (11 points)

YAC (12 points)

Problem	Score
CCO '01 P1 - The Monkey Dance	10 / 10
CCO '11 P2 - Vampire Tunnels	15 / 15
CCO '14 P2 - King Gruff	15 / 15

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 R2 #4 - All Is Balanced	5 / 5
DWITE '07 R3 #5 - Portals	7 / 7
DWITE '08 R2 #5 - Water damage	7 / 7
DWITE '08 R4 #3 - Secret party	7 / 7
DWITE '09 R1 #2 - Word Scrambler	5 / 5
DWITE '09 R1 #3 - That Missing Number	5 / 5
DWITE '09 R7 #5 - Snapper Chain	10 / 10
DWITE '10 R4 #4 - Mountain Hiking	7 / 7
DWITE '12 R1 #4 - Trick or Tree'ing	5 / 5

Problem	Score
Mock CCC '20 Contest 2 S2 - 4D BBST on a DP	5 / 5
Mock CCC '14 S3 - Spreadsheet Sorting	7 / 7
Mock CCC '18 Contest 5 J4/S2 - Reverse Sort	5 / 5
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity	7 / 7

Problem	Score
SAC '21 Code Challenge P4 - Averaging Averages	5 / 5
SAC '22 Code Challenge 3 P2 - Unicycle License	5 / 5
SAC '22 Code Challenge 5 Junior P3 - Media List	5 / 5

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back To School '17: Avalon	5 / 5
Back To School '18: Letter Frequency	7 / 7
Canada Day Contest 2021 - CCC Bad Haha	12 / 12
Miracle Sort	3 / 3
Is it a Tree?	7 / 7

Problem	Score
TLE '16 Contest 4 P1 - Stack of Presents	5 / 5
TLE '16 Contest 6 (Mock CCC) S1 - Writing the CCC	5 / 5
TLE '17 Contest 2 P2 - Unlucky Numbers	5 / 5

Problem	Score
Triple Fat Ladies	5 / 5
Appleby Contest '19 P3 - A Recursion Problem	5 / 5
Arcadia Computing Contest 2 P5 - lp0 is on fire!	10 / 10
A Plus B	3 / 3
Adding Reversed Numbers	5 / 5
The Cake is a Dessert	10 / 10
Checkerboard Summation (Easy)	12 / 12
Chocolate Bar	5 / 5
Educational DP Contest AtCoder A - Frog 1	7 / 7
PEG Test '11 - Cyclopian Cash	3 / 3
Troubling Triangles	7 / 7
HCI '16 - Ulam Spiral	5 / 5
Hello, World!	3 / 3
Word Scrambler	5 / 5
A Math Contest P2 - Subsequence Sum	5 / 5
OCC '19 S2 - Rimuru's Number Game	5 / 5
The Mirror	5 / 5
Postfix Notation	7 / 7
Primes	3 / 3
Rat In A Maze	5 / 5
Bubble Sort	7 / 7
STNBD P3 - Rinslet Laurenfrost	5 / 5
Sum Maximization	10 / 10
THICC '17 P2 - Molly and Product	7 / 7
Tropical Bananas	10 / 10
UTS Open '21 P2 - Prime Array	10 / 10
Valentine's Day '19 S2 - Ctudor's Cute Cacti	7 / 7

Problem	Score
VMSS '15 #2 - Tomb Robbing	7 / 7
VM7WC '15 #5 Bronze - Melanioana	3 / 3
VM7WC '16 #2 Silver - GG	5 / 5
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5

Problem	Score
WC '15 Contest 4 J2 - Mission Briefing	3 / 3
WC '16 Contest 1 J1 - A Spooky Season	3 / 3
WC '16 Finals J2 - Enigmoo	5 / 5

Problem	Score
Yet Another Contest 1 P3 - Fluke	2 / 10
Yet Another Contest 7 P2 - Coprime Grid	10 / 10