User zhai

Points breakdown

15 / 15

AC | JAVA8

CCC '15 S4 - Convex Hull

on Oct. 21, 2023, 1:51 p.m.

15pp

weighted 100% (15pp)

100 / 100

AC | JAVA8

Mock CCO '18 Contest 4 Problem 3 - Counterattack

on Aug. 29, 2023, 3:24 a.m.

15pp

weighted 95% (14pp)

19 / 19

AC | JAVA8

CCO '12 P2 - The Hungary Games

on Aug. 27, 2023, 2:16 p.m.

15pp

weighted 90% (14pp)

100 / 100

AC | PY2

Self-deception

on Feb. 22, 2023, 5:38 p.m.

15pp

weighted 86% (13pp)

100 / 100

AC | PYPY3

Dilhan's Computing Contest 1 P2 - Square Sum

on Feb. 19, 2025, 1:35 a.m.

12pp

weighted 81% (9.8pp)

15 / 15

AC | JAVA8

CCC '24 S4 - Painting Roads

on April 18, 2024, 12:23 a.m.

12pp

weighted 77% (9.3pp)

15 / 15

AC | JAVA8

CCC '20 S4 - Swapping Seats

on April 8, 2024, 3:46 p.m.

12pp

weighted 74% (8.8pp)

60 / 100

AC | JAVA8

TLE 2018-19 P4 - Fax McClad and the Melee

on July 24, 2023, 10:32 p.m.

12pp

weighted 70% (8.4pp)

15 / 15

AC | JAVA8

CCC '21 S4 - Daily Commute

on May 22, 2023, 4:29 p.m.

12pp

weighted 66% (8.0pp)

15 / 15

AC | JAVA8

CCC '21 S3 - Lunch Concert

on March 4, 2025, 1:20 a.m.

10pp

weighted 63% (6.3pp)

Problem	Score
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 2 P0 - Koala Matchmaking	3 / 3
An Animal Contest 2 P1 - Koala Konundrum	5 / 5
An Animal Contest 2 P2 - Koala Party	5 / 5
An Animal Contest 3 P2 - Monkey Potato	5 / 5
An Animal Contest 3 P3 - Monkey Market	7 / 7
An Animal Contest 3 P4 - Monkey Mayhem	7 / 7
An Animal Contest 4 P1 - Dasher's Digits	5 / 5
An Animal Contest 6 P1 - Workout Routine	5 / 5
An Animal Contest 6 P2 - G-Pop	7 / 7

Problem	Score
CCC '00 S2 - Babbling Brooks	7 / 7
CCC '00 S4 - Golf	7 / 7
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '02 S2 - Fraction Action	5 / 5
CCC '02 S4 - Bridge Crossing	10 / 10
CCC '03 S1 - Snakes and Ladders	5 / 5
CCC '03 S2 - Poetry	5 / 5
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 '05 J1 - The Cell Sell	3 / 3
CCC '05 J2 - RSA Numbers	3 / 3
CCC '05 J4 - Cross Spiral	5.600 / 7
CCC '05 J5 - Bananas	10 / 10
CCC '06 J2 - Roll the Dice	3 / 3
CCC '07 J5 - Keep on Truckin'	7 / 7
CCC '07 S1 - Federal Voting Age	3 / 3
CCC '08 J1 - Body Mass Index	3 / 3
CCC '08 J2 - Do the Shuffle	3 / 3
CCC '08 S1 - It's Cold Here!	4.200 / 5
CCC '08 S3 - Maze	7 / 7
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 S4 - Shop and Ship	10 / 10
CCC '10 J1 - What is n, Daddy?	3 / 3
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 S1 - English or French?	5 / 5
CCC '11 S2 - Multiple Choice	3 / 3
CCC '12 J2 - Sounds fishy!	3 / 3
CCC '12 S3 - Absolutely Acidic	7 / 7
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 S4 - Who is Taller?	7 / 7
CCC '14 S1 - Party Invitation	5 / 5
CCC '14 S2 - Assigning Partners	5 / 5
CCC '14 S3 - The Geneva Confection	7 / 7
CCC '15 J5 - π-day	10 / 10
CCC '15 S2 - Jerseys	5 / 5
CCC '15 S3 - Gates	10 / 10
CCC '15 S4 - Convex Hull	15 / 15
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 S2 - Tandem Bicycle	5 / 5
CCC '17 S2 - High Tide, Low Tide	5 / 5
CCC '17 S3 - Nailed It!	7 / 7
CCC '18 J5 - Choose your own path	7 / 7
CCC '18 S2 - Sunflowers	5 / 5
CCC '18 S3 - RoboThieves	10 / 10
CCC '19 J3 - Cold Compress	5 / 5
CCC '19 S2 - Pretty Average Primes	5 / 5
CCC '20 S1 - Surmising a Sprinter's Speed	5 / 5
CCC '20 S2 - Escape Room	10 / 10
CCC '20 S4 - Swapping Seats	12 / 12
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 '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 J5 - CCC Word Hunt	10 / 10
CCC '23 S2 - Symmetric Mountains	7 / 7
CCC '23 S3 - Palindromic Poster	10 / 10
CCC '23 S4 - Minimum Cost Roads	6 / 15
CCC '23 S5 - The Filter	4 / 20
CCC '24 J4 - Troublesome Keys	5 / 5
CCC '24 S1 - Hat Circle	3 / 3
CCC '24 S3 - Swipe	10 / 10
CCC '24 S4 - Painting Roads	12 / 12
CCC '25 S3 - Pretty Pens	7.333 / 10
CCC '96 S2 - Divisibility by 11	7 / 7
CCC '96 S4 - When in Rome	10 / 10
CCC '97 S2 - Nasty Numbers	5 / 5
CCC '98 S1 - Censor	5 / 5
CCCHK '08 J2 - Lucky Number	3 / 3
CCCHK '15 J4 - Where to build my house?	5 / 5

Problem	Score
CCO '12 P2 - The Hungary Games	15 / 15
CCO '17 P1 - Vera and Trail Building	7 / 7
CCO '18 P1 - Geese vs. Hawks	10 / 10
CCO '24 P1 - Treasure Hunt	4 / 10
CCO '25 P1 - Asteroid Mining	1.200 / 15

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

Problem	Score
COCI '06 Contest 1 #4 Slikar	10 / 10
COCI '08 Contest 1 #2 Ptice	5 / 5
COCI '08 Contest 3 #2 Kemija	5 / 5
COCI '09 Contest 6 #2 Natjecanje	5 / 5
COCI '10 Contest 2 #2 Napor	5 / 5
COCI '11 Contest 1 #4 Ples	10 / 10
COCI '12 Contest 1 #2 F7	7 / 7
COCI '12 Contest 3 #4 Aerodrom	7 / 7
COCI '12 Contest 6 #3 Dobri	7 / 7
COCI '14 Contest 5 #2 Zmija	7 / 7
COCI '16 Contest 2 #3 Nizin	10 / 10
COCI '16 Contest 7 #3 Igra	10 / 10
COCI '19 Contest 5 #2 Političari	7 / 7
COCI '22 Contest 2 #2 Ekspert	10 / 10
COCI '22 Contest 3 #1 Estimathon	5 / 5
COCI '22 Contest 3 #2 Dirigent	7 / 7
COCI '22 Contest 4 #2 Zrinka	2.857 / 10
COCI '06 Regional #1 Bard	7 / 7
COCI '06 Regional #3 Firefly	10 / 10
COCI '07 Regional #1 Platforme	7 / 7

User zhai

Points breakdown

AAC (71 points)

CCC (562.133 points)

CCO (37.200 points)

Classics (15 points)

COCI (143.857 points)

DMOPC (301.300 points)

DWITE (35 points)

EGOI (7 points)

GFSSOC (33 points)

ICPC (20 points)

IOI (7 points)

Mock CCC (66 points)

Mock CCO (15 points)

MWC (14.909 points)

SAC Coding Challenge (2.800 points)

Seasonal (73 points)

TLE (5 points)

Uncategorized (431.500 points)

VM7WC (28 points)

WAC (18 points)

Woburn Challenge (43 points)

YAC (69.900 points)

Problem	Score
DMOPC '14 Contest 1 P1 - Median Mark	5 / 5
DMOPC '14 Contest 1 P2 - Tiles	3 / 3
DMOPC '14 Contest 2 P1 - Logging Log	3 / 3
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
DMOPC '14 Contest 5 P1 - Core Drill	3 / 3
DMOPC '14 Contest 6 P4 - Bus Jam	10 / 10
DMOPC '14 Contest 7 P1 - Flare	3 / 3
DMOPC '14 Contest 7 P2 - Tides	5 / 5
DMOPC '14 Contest 7 P3 - Globally Unique Shells	5 / 5
DMOPC '14 Contest 7 P4 - Sand Triangle	7 / 7
DMOPC '14 Contest 7 P5 - Aurora	10 / 10
DMOPC '16 Contest 1 P3 - Shoe Shopping	7 / 7
DMOPC '16 Contest 4 P2 - Systests	7 / 7
DMOPC '17 Contest 1 P2 - Sharing Crayons	2.800 / 7
DMOPC '18 Contest 1 P1 - Sorting	5 / 5
DMOPC '18 Contest 1 P2 - Sorting	5 / 5
DMOPC '18 Contest 2 P0 - Mimi and Video Games	3 / 3
DMOPC '18 Contest 2 P4 - Damage Output	7 / 7
DMOPC '18 Contest 5 P2 - A Photography Problem	7 / 7
DMOPC '20 Contest 2 P2 - Lousy Christmas Presents	5 / 5
DMOPC '20 Contest 3 P1 - Present Checking	5 / 5
DMOPC '20 Contest 4 P1 - Missing Numbers	5 / 5
DMOPC '20 Contest 6 P1 - Tug of War	7 / 7
DMOPC '20 Contest 7 P1 - Bob and Balance	7 / 7
DMOPC '21 Contest 10 P2 - Cycle Sort	7 / 7
DMOPC '21 Contest 1 P1 - Partial Game	5 / 5
DMOPC '21 Contest 2 P1 - Bosses	7 / 7
DMOPC '21 Contest 5 P1 - Permutations & Primes	5 / 5
DMOPC '21 Contest 5 P2 - Permutations & Primes	7 / 7
DMOPC '21 Contest 6 P1 - Bigger Big Integer	3 / 3
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 8 P1 - Peanut Planning	7 / 7
DMOPC '21 Contest 9 P1 - Board Numbers	7 / 7
DMOPC '22 Contest 1 P1 - Up-down Sequence	5 / 5
DMOPC '22 Contest 1 P2 - Hat Swap	10 / 10
DMOPC '22 Contest 2 P1 - DMOPC Crisis	5 / 5
DMOPC '22 Contest 3 P1 - Holiday Colouring	5 / 5
DMOPC '22 Contest 4 P1 - Alone Time	5 / 5
DMOPC '22 Contest 4 P2 - Fake Painting	3 / 10
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
DMOPC '23 Contest 1 P5 - Perfect Matching	5 / 25
DMPG '15 S3 - Zen Garden	7 / 7
DMPG '15 S4 - Signal Hill	10 / 10
DMPG '18 G1 - Musical Chairs	10 / 10
DMPG '19 S1 - Candy Shop Tycoon	5 / 5

Problem	Score
DWITE '07 R1 #1 - Vanilla Primes	3 / 3
DWITE '07 R2 #1 - Not Quite Prime	5 / 5
DWITE '07 R3 #1 - Yet Another Primes Question	5 / 5
DWITE '08 R1 #4 - What is this Roman Numeral	7 / 7
DWITE '09 R2 #4 - Breadth First Not Quite Tree	5 / 5
DWITE '11 R3 #4 - ABCA Maze	7 / 7
DWITE '12 R2 #1 - Sugar Rush	3 / 3

Problem	Score
GFSSOC '14 Winter J1 - Flying Plushies	3 / 3
GFSSOC '14 Winter J2 - Wow much parking lot	3 / 3
GFSSOC '14 Winter J5 - Pursuit of Knowledge	10 / 10
GFSSOC '15 Fall J4 - Marathon	7 / 7
GFSSOC '15 Fall J5 - Nightmare-a-thon	10 / 10

Problem	Score
ACM U of T Tryouts C0 B - Interleaving Leaves	5 / 5
ACM U of T Tryouts C2 A - The Super Mario Blues	5 / 5
ICPC NAQ 2016 C - Big Truck	10 / 10

Problem	Score
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 '23 Contest 1 J4 - String Decryption	5 / 5
Mock CCC '24 Contest 1 J3 - RGB Words	5 / 5
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 '24 Contest 1 S3 - Optimal Split Point	8 / 10
Mock CCC '22 2 S1 - Kaguya Wants to Let Ishigami Pass	5 / 5
Mock CCC '18 Contest 2 J2 - A Software Engineering Task	3 / 3
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity	7 / 7
Mock CCC '22 1 S1 - Big Mattress Tournament	5 / 5
Mock CCC '22 1 S2 - IU	5 / 5

Problem	Score
MWC '15 #1 P5: Love Guru	7 / 7
MWC '15 #2 P2: Towering Towers	0.909 / 10
MWC '15 #6 P2: Breadwinners	7 / 7

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back To School '16: Dodgeball	7 / 7
Back To School '18: Harambe	3 / 3
Max's Anger Contest Series 2 P1 - Directed Anger	3 / 3
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 P4 - Number Anger	3.600 / 12
Max's Anger Contest Series 2 P5 - Job Anger	2.400 / 12
MNYC '17: Hurontario	4 / 10
TLE 2018-19 P4 - Fax McClad and the Melee	12 / 20
Too Simple	7 / 7
Is it a Tree?	7 / 7
New Year's '18 P2 - Mimi and Christmas Cake	5 / 5

Problem	Score
2spooky4me	7 / 7
Triple Fat Ladies	5 / 5
Another Sorting	5 / 5
A Plus B	3 / 3
Adding Reversed Numbers	5 / 5
List Minimum (Easy)	3 / 3
List Minimum (Hard)	5 / 5
Bob's Rocks	5 / 5
BPC 1 S1 - Homework Questions	5 / 5
BSSPC '22 P1 - Bubble Tea Tracker	3 / 3
BSSPC '22 P4 - Exec Pieing	5 / 5
BSSPC '22 P5 - Derrick and Orz Trees	7 / 7
Back to School '24 P1 - Kicking	5 / 5
Back to School '24 P2 - Cheating	10 / 10
Coin Change	7 / 7
Cheerio Contest 3 P1 - Wet Floor	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	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 P4 - Increasing Sequence With Gap	3.400 / 17
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 H - Grid 1	7 / 7
Diagnostic Test '16 Level 1 P2 - FaxPrimes	5 / 5
Fast Factorial Calculator 2	1 / 20
PEG Test '11 - Cyclopian Puzzle	10 / 10
Troubling Triangles	7 / 7
GlobeX Cup '18 J5 - Errands	10 / 10
Graph Contest 1 P2 - Shortest Path	5 / 5
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	0.500 / 10
OCC '19 S2 - Rimuru's Number Game	5 / 5
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
OTHS Coding Competition 3 (Mock CCC) S1 - The 5th Laboratory	5 / 5
OTHS Coding Competition 3 (Mock CCC) S2 - Together Forever	7 / 7
Postfix Notation	7 / 7
Factorial Sum List	5 / 5
VMSS Pre-Windsor P6 - You Can't Write Science Fiction Better Than This	7 / 7
VMSS Pre-Windsor P7 - Going Back to the Definitions	7 / 7
Self-deception	15 / 15
QCC P6 - Freedom!	7 / 7
RGPC '18 P3 - Chocolate Day	10 / 10
RTE '16 S1 - Battery Pyramids	7 / 7
Singularity Cup P1 - Maximum Permutation Product	5 / 5
The Cosmic Era P2 - Uneven Sand	5 / 5
The Cosmic Era P3 - Battle Positions	7 / 7
Python Infinite Loop	7 / 7
Bubble Sort	7 / 7
Coding Spree	7 / 7
A Subarray Problem	7 / 7
The Contest Contest 1 P1 - A Typical Codeforces Problem	5 / 5
The Contest Contest 1 P2 - A Typical CCC Senior Problem	10 / 10
Tree Tasks	10 / 10
TSS Club Fair 2017 Problem B	7 / 7
UTS Open '18 P4 - Ianine's Lil Lab	10 / 10
UTS Open '24 P2 - Happy Gifts	7 / 7
Valentine's Day '19 S2 - Ctudor's Cute Cacti	7 / 7

Problem	Score
VMSS '15 #1 - Senpai, Help Me	5 / 5
VMSS '15 #4 - Frank and Roads	10 / 10
VM7WC '15 #2 Bronze - Recruits!	3 / 3
VM7WC '15 #3 Silver - Test Scores	5 / 5
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5

Problem	Score
Wesley's Anger Contest 1 Problem 1 - Simply a Simple Simplex Problem	5 / 5
Wesley's Anger Contest Reject 4 - GPS	10 / 10
Wesley's Anger Contest Reject 2 - 🥕suba	3 / 3

Problem	Score
WC '15 Contest 1 S1 - Woburn Workload	7 / 7
WC '17 Finals S1 - An Interspecific Army	5 / 5
WC '18 Contest 1 S2 - Essay Generator	7 / 7
WC '18 Contest 3 J4 - Leveling Up	7 / 7
WC '18 Contest 3 S1 - The Perfect Team	10 / 10
WC '96 P5 - Plentiful Paths	7 / 7

Problem	Score
Yet Another Contest 1 P1 - Mixed Doubles	7 / 7
Yet Another Contest 2 P1 - Betting	5 / 5
Yet Another Contest 3 P1 - Shell Swap Scam	5 / 5
Yet Another Contest 4 P1 - Snap	5 / 5
Yet Another Contest 5 P1 - Number Pyramid	0.700 / 7
Yet Another Contest 6 P1 - No More Separation	5 / 5
Yet Another Contest 7 P1 - Page Turning	5 / 5
Yet Another Contest 7 P2 - Coprime Grid	3 / 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	1.400 / 7
Yet Another Contest 8 P3 - Herobrine	2.400 / 12
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