User Qianyi_M

Points breakdown

15 / 15

AC | PY3

CCC '15 S4 - Convex Hull

on Feb. 9, 2025, 2:13 a.m.

15pp

weighted 100% (15pp)

100 / 100

AC | PY3

South African Computer Olympiad 2008 Day 1 Problem 3 - Visiting Grandma

on Feb. 2, 2025, 2:03 a.m.

15pp

weighted 95% (14pp)

25 / 25

AC | PY3

CCO '12 P2 - The Hungary Games

on Jan. 30, 2025, 10:21 p.m.

15pp

weighted 90% (14pp)

15 / 15

AC | PY3

CCC '25 S4 - Floor is Lava

on March 10, 2025, 10:51 p.m.

12pp

weighted 86% (10pp)

100 / 100

AC | PY3

Knapsack 3

on March 9, 2025, 2:04 a.m.

10pp

weighted 81% (8.1pp)

15 / 15

AC | PY3

CCC '20 S2 - Escape Room

on March 9, 2025, 12:34 a.m.

10pp

weighted 77% (7.7pp)

100 / 100

AC | PY3

DMOPC '13 Contest 3 P5 - A Romantic Dinner

on March 8, 2025, 4:37 p.m.

10pp

weighted 74% (7.4pp)

15 / 15

AC | PY3

CCC '22 S3 - Good Samples

on Feb. 23, 2025, 2:06 a.m.

10pp

weighted 70% (7.0pp)

100 / 100

AC | PYPY3

Path Finder

on Feb. 23, 2025, 12:50 a.m.

10pp

weighted 66% (6.6pp)

100 / 100

AC | PY3

VM7WC '15 #4 Gold - Chain Rule

on Jan. 29, 2025, 8:20 p.m.

10pp

weighted 63% (6.3pp)

Problem	Score
An Animal Contest 1 P1 - Alpaca Shapes	3 / 3
An Animal Contest 5 P1 - Bamboo Cookies	3 / 3
An Animal Contest 7 P2 - Squirrel Structures	7 / 7

Problem	Score
CCC '00 S1 - Slot Machines	5 / 5
CCC '00 S2 - Babbling Brooks	7 / 7
CCC '00 S4 - Golf	7 / 7
CCC '01 J2 - Mod Inverse	3 / 3
CCC '03 S2 - Poetry	5 / 5
CCC '03 S3 - Floor Plan	7 / 7
CCC '04 S2 - TopYodeller	5 / 5
CCC '05 J5 - Bananas	10 / 10
CCC '05 S4 - Pyramid Message Scheme	10 / 10
CCC '06 J4 - It's tough being a teen!	7 / 7
CCC '06 S1 - Maternity	5 / 5
CCC '07 J3 - Deal or No Deal Calculator	3 / 3
CCC '07 J5 - Keep on Truckin'	7 / 7
CCC '07 S3 - Friends	7 / 7
CCC '08 J2 - Do the Shuffle	3 / 3
CCC '08 J4 - From Prefix to Postfix	7 / 7
CCC '08 S3 - Maze	7 / 7
CCC '09 S1 - Cool Numbers	5 / 5
CCC '09 S3 - Degrees Of Separation	10 / 10
CCC '09 S4 - Shop and Ship	10 / 10
CCC '10 J5 - Knight Hop	7 / 7
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 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 S1 - Don't pass me the ball!	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 S3 - Chances of Winning	10 / 10
CCC '13 S4 - Who is Taller?	7 / 7
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 '15 S4 - Convex Hull	15 / 15
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 S1 - Ragaman	3 / 3
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 S1 - Sum Game	3 / 3
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 S1 - Voronoi Villages	3 / 3
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 S1 - Surmising a Sprinter's Speed	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 S1 - Crazy Fencing	5 / 5
CCC '21 S2 - Modern Art	7 / 7
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	1.333 / 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	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 '25 S1 - Positioning Peter's Paintings	3 / 3
CCC '25 S2 - Cryptogram Cracking Club	7 / 7
CCC '25 S3 - Pretty Pens	3.333 / 10
CCC '25 S4 - Floor is Lava	12 / 12
CCC '96 S3 - Pattern Generator	5 / 5
CCC '97 S3 - Double Knockout Competition	5 / 5
CCCHK '08 J3 - Phone book	5 / 5
CCCHK '15 J3 - Queens can't attack me!	5 / 5
CCCHK '15 J4 - Where to build my house?	5 / 5

Problem	Score
CCO '01 P1 - The Monkey Dance	10 / 10
CCO '07 P2 - Snowflakes	10 / 10
CCO '08 P5 - Candy	5.320 / 7
CCO '12 P2 - The Hungary Games	15 / 15

Problem	Score
Sorting	3 / 3
Next Prime	5 / 5
Unique Elements	3 / 3
Single Source Shortest Path	7 / 7

Problem	Score
COCI '06 Contest 1 #4 Slikar	10 / 10
COCI '07 Contest 2 #3 Prva	7 / 7
COCI '07 Contest 4 #2 Veci	5 / 5
COCI '08 Contest 2 #3 Perket	7 / 7
COCI '13 Contest 5 #3 Eksplozjia	10 / 10
COCI '14 Contest 2 #1 Mobitel	5 / 5
COCI '14 Contest 5 #3 Traktor	7 / 7
COCI '15 Contest 2 #2 Geppetto	7 / 7
COCI '16 Contest 2 #3 Nizin	10 / 10
COCI '16 Contest 3 #2 Pohlepko	7 / 7
COCI '18 Contest 4 #2 Wand	7 / 7

User Qianyi_M

Points breakdown

AAC (13 points)

CCC (632.666 points)

CCO (40.320 points)

Classics (18 points)

COCI (82 points)

Data Structure Tests (10 points)

DMOPC (240.400 points)

DWITE (34 points)

ECOO (32 points)

FHC (10 points)

GFSSOC (17.500 points)

ICPC (7 points)

IOI (7 points)

JOI (3 points)

Mock CCC (98 points)

MWC (7 points)

SAC Coding Challenge (70 points)

Seasonal (42 points)

TLE (10 points)

TSOC (14 points)

Uncategorized (427.950 points)

VM7WC (44 points)

Woburn Challenge (20 points)

YAC (16.400 points)

Problem	Score
DMOPC '13 Contest 1 P4 - AFK	1.400 / 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 3 P4 - Not Enough Testers!	10 / 10
DMOPC '14 Contest 4 P6 - Save Nagato!	10 / 10
DMOPC '15 Contest 4 P4 - Great Sequence	10 / 10
DMOPC '16 Contest 2 P2 - Ebola Outbreak	7 / 7
DMOPC '16 Contest 4 P2 - Systests	7 / 7
DMOPC '16 Contest 4 P5 - Migrant Mascot	5 / 10
DMOPC '17 Contest 1 P1 - Fujō Neko	5 / 5
DMOPC '17 Contest 1 P2 - Sharing Crayons	7 / 7
DMOPC '17 Contest 1 P3 - Hitchhiking Fun	7 / 7
DMOPC '17 Contest 2 P3 - Bad Bunnies	10 / 10
DMOPC '17 Contest 4 P1 - Ribbon Colouring Fun	5 / 5
DMOPC '17 Contest 4 P4 - Cops and Robbers	7 / 7
DMOPC '17 Contest 5 P1 - IOI 101	3 / 3
DMOPC '17 Contest 5 P2 - Mimi and Binary	5 / 5
DMOPC '18 Contest 1 P2 - Sorting	5 / 5
DMOPC '18 Contest 2 P4 - Damage Output	7 / 7
DMOPC '18 Contest 5 P3 - A Familiar Problem	7 / 7
DMOPC '18 Contest 6 P3 - Wish Upon a Star	10 / 10
DMOPC '19 Contest 1 P1 - Test Scores	5 / 5
DMOPC '19 Contest 1 P2 - Good Writing	7 / 7
DMOPC '19 Contest 2 P2 - Squares	7 / 7
DMOPC '19 Contest 5 P1 - Conspicuous Cryptic Checklist	5 / 5
DMOPC '20 Contest 1 P2 - Victor's Moral Dilemma	5 / 5
DMOPC '20 Contest 4 P1 - Missing Numbers	5 / 5
DMOPC '20 Contest 5 P1 - Home Row	3 / 3
DMOPC '20 Contest 7 P1 - Bob and Balance	7 / 7
DMOPC '21 Contest 10 P2 - Cycle Sort	7 / 7
DMOPC '21 Contest 5 P1 - Permutations & Primes	5 / 5
DMOPC '21 Contest 5 P2 - Permutations & Primes	7 / 7
DMOPC '21 Contest 6 P3 - An Art Problem	10 / 10
DMOPC '21 Contest 7 P1 - Chika Grids	5 / 5
DMOPC '22 Contest 4 P1 - Alone Time	5 / 5
DMPG '17 S2 - Anime Conventions	7 / 7

Problem	Score
DWITE '07 R2 #1 - Not Quite Prime	5 / 5
DWITE '07 R2 #4 - All Is Balanced	5 / 5
DWITE '08 R3 #2 - Wordcount++	5 / 5
DWITE '08 R3 #4 - Time for change	7 / 7
DWITE '09 R1 #5 - Running In Circles	7 / 7
DWITE '10 R5 #2 - Safe from Rooks	5 / 5

Problem	Score
ECOO '13 R1 P1 - Take a Number	5 / 5
ECOO '16 R1 P3 - Railway Sort	7 / 7
ECOO '19 R1 P1 - Free Shirts	5 / 5
ECOO '19 R1 P2 - L-Systems Go	5 / 5
ECOO '19 R2 P1 - Email	5 / 5
ECOO '20 P2 - Online Shopping	5 / 5

Problem	Score
GFSSOC '15 Fall J4 - Marathon	7 / 7
GFSSOC '15 Fall J5 - Nightmare-a-thon	3 / 10
GFSSOC '15 Fall S4 - Mostly Talking	7.500 / 15

Problem	Score
Mock CCC '22 Contest 1 J1 - Square Root Decomposition	3 / 3
Mock CCC '22 Contest 1 J2 - Biking and Hiking	3 / 3
Mock CCC '22 Contest 1 J3 - String Crossing Maximization	7 / 7
Mock CCC '22 Contest 1 J4 - Snowball Fight	5 / 5
Mock CCC '22 Contest 2 J1 - Opening Ceremony	3 / 3
Mock CCC '22 Contest 2 J2 - Snowboarding Championship	3 / 3
Mock CCC '22 Contest 2 J3 - Figure Skating Fun	5 / 5
Mock CCC '23 Contest 1 J1 - Final Velocity	3 / 3
Mock CCC '23 Contest 1 J2 - Healthy Schedule	3 / 3
Mock CCC '23 Contest 1 J3 - Pairing Gifts	5 / 5
Mock CCC '24 Contest 1 J1 - Lemon Bathtub	3 / 3
Mock CCC '14 S3 - Spreadsheet Sorting	7 / 7
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 2 J3/S1 - An Array Problem	7 / 7
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 '19 Contest 1 J4 - Pusheen Plays Neko Atsume	3 / 3
Valentine's Day '18 J5 & S2 - Ctudor's Cute Orchids	7 / 7

Problem	Score
SAC '22 Code Challenge 1 P3 - That Pool	7 / 7
SAC '22 Code Challenge 3 Junior P1 - Normal Problem	3 / 3
SAC '22 Code Challenge 3 Junior P2 - Normal Lines	3 / 3
SAC '22 Code Challenge 3 Junior P3 - Normal Probabilities	3 / 3
SAC '22 Code Challenge 3 Junior P4 - Normal Conversions	5 / 5
SAC '22 Code Challenge 3 P1 - Hair Hazards	3 / 3
SAC '22 Code Challenge 3 P3 - Bob Sort	5 / 5
SAC '22 Code Challenge 4 Junior P1 - Obligatory DeMello Problem	3 / 3
SAC '22 Code Challenge 4 Junior P2 - Obligatory Geometry Problem	3 / 3
SAC '22 Code Challenge 4 Junior P3 - Obligatory Triangle Problem	5 / 5
SAC '22 Code Challenge 4 P1 - Obligatory Car Problem	3 / 3
SAC '22 Code Challenge 4 P2 - Obligatory String Problem	5 / 5
SAC '22 Code Challenge 4 P3 - Obligatory Math Problem	5 / 5
SAC '22 Code Challenge 5 Junior P3 - Media List	5 / 5
SAC '22 Code Challenge 5 Junior P4 - Course Requirements	7 / 7
SAC '22 Code Challenge 5 P2 - Querying Extensions	5 / 5

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back To School '18: Letter Frequency	7 / 7
Death Gun	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

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

Problem	Score
TSOC '15 Contest 1 #5 - Giant Ants	7 / 7
TSOC '16 Contest 1 #4 - Alex and Animal Rights	7 / 7

Problem	Score
Appleby Contest '19 P3 - A Recursion Problem	5 / 5
Appleby Contest '19 P4 - Rectangles	5.950 / 7
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
A Noisy Class	7 / 7
Another Sorting	5 / 5
A Plus B	3 / 3
Avocado Trees!	5 / 5
Palindromic Integer Partition	5 / 5
Big Deposits	7 / 7
BPC 1 S1 - Homework Questions	5 / 5
BSSPC '21 S2 - Hacker Soup	7 / 7
BSSPC '21 S3 - James's Egirl Discord Status	7 / 7
Back to School '24 P1 - Kicking	5 / 5
Coin Change	7 / 7
Cheerio Contest 3 P1 - Wet Floor	5 / 5
Cheerio Contest 3 P2 - Double-O-Seven	5 / 5
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	3 / 5
Dr. Anne Anderson Coding Contest 1 P4 - Lighting	5 / 5
Dr. Anne Anderson Coding Contest 1 P5 - Guessing Grades	0.400 / 7
Dilhan's Computing Contest 1 P1 - The Cathedral of Learning	5 / 5
Dilhan's Computing Contest 1 P2 - Square Sum	9.600 / 12
Maximum Sum	7 / 7
Educational DP Contest AtCoder A - Frog 1	7 / 7
Educational DP Contest AtCoder B - Frog 2	7 / 7
Educational DP Contest AtCoder D - Knapsack 1	7 / 7
Exam Prep	7 / 7
PEG Test '11 - Cyclopian Puzzle	10 / 10
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
HCI '16 - Oversleep	7 / 7
Hello, World!	3 / 3
Word Scrambler	5 / 5
Count The Triplets	7 / 7
Knapsack 3	10 / 10
Largest Permutation	7 / 7
Lil' Jami	5 / 5
A Math Contest P2 - Subsequence Sum	5 / 5
Modulo Sort	5 / 5
OCC '19 S2 - Rimuru's Number Game	5 / 5
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
Path Finder	10 / 10
Postfix Notation	7 / 7
Prime Factorization	5 / 5
VMSS Pre-Windsor P7 - Going Back to the Definitions	7 / 7
South African Computer Olympiad 2008 Day 1 Problem 3 - Visiting Grandma	15 / 15
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
Coding Spree	7 / 7
Sudoku Challenge	7 / 7
TSS Club Fair 2017 Problem B	7 / 7
UACC 1 P1 - Bench Press Bob	3 / 3
UACC 1 P2 - Puzzling Parks	5 / 5
UACC 1 P3 - Cheeky Checkers	7 / 7
UCC Coding Competition '21 P3 - Long Pizza	5 / 5
UHCC1 P1 - PONG!	3 / 3
UHCC1 P2 - String	5 / 5
Intertwined Strings	7 / 7
UTS Open '18 P2 - ABCs	3 / 3
UTS Open '18 P3 - Restaurants	7 / 7
UTS Open '24 P1 - Watering the Plants	5 / 5
UTS Open '24 P2 - Happy Gifts	7 / 7

Problem	Score
VM7WC '15 #4 Gold - Chain Rule	10 / 10
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5
VM7WC '16 #3 Gold - Hello, Officer.	10 / 10
VM7WC '16 #4 Silver - Tests or Test Cases?	5 / 5
VM7WC '16 #5 Gold - Jayden Studies Trees	7 / 7
VM7WC '16 #5 Silver - Jayden Eats Chocolate	7 / 7

Problem	Score
WC '15 Finals S2 - Hydration	10 / 10
WC '17 Contest 1 J2 - How's the Weather?	3 / 3
WC '18 Contest 1 S2 - Essay Generator	7 / 7

Problem	Score
Yet Another Contest 2 P1 - Betting	5 / 5
Yet Another Contest 8 P1 - Permutation Sorting	5 / 5
Yet Another Contest 9 P1 - Permutation Cutting	5 / 5
Yet Another Contest 9 P2 - Nim	1.400 / 7