User qwertie

Points breakdown

100 / 100

AC | C++17

DMOPC '21 Contest 10 P5 - Number Theory

on Feb. 16, 2026, 10:40 p.m.

20pp

weighted 100% (20pp)

100 / 100

AC | C++17

Primes 2

on May 5, 2026, 1:24 a.m.

15pp

weighted 95% (14pp)

100 / 100

AC | C++17

The Torture Chamber

on May 4, 2026, 1:18 a.m.

15pp

weighted 90% (14pp)

100 / 100

AC | C++17

Educational DP Contest AtCoder P - Independent Set

on Nov. 29, 2025, 9:49 p.m.

12pp

weighted 86% (10pp)

100 / 100

AC | C++17

Back To School '16: Cherry Tree

on Nov. 22, 2025, 10:47 p.m.

12pp

weighted 81% (9.8pp)

100 / 100

AC | C++17

The Third Cellar

on May 3, 2026, 5:47 p.m.

10pp

weighted 77% (7.7pp)

10 / 10

AC | C++17

XOR Sum

on April 6, 2026, 9:09 p.m.

10pp

weighted 74% (7.4pp)

100 / 100

AC | PERL

Confirmation Bias

on March 4, 2026, 3:54 a.m.

10pp

weighted 70% (7.0pp)

100 / 100

AC | C++17

Path Finder

on Jan. 28, 2026, 3:07 a.m.

10pp

weighted 66% (6.6pp)

50 / 50

AC | C++17

A Game

on Dec. 21, 2025, 7:15 p.m.

10pp

weighted 63% (6.3pp)

Problem	Score
An Animal Contest 1 P1 - Alpaca Shapes	3 / 3
An Animal Contest 2 P0 - Koala Matchmaking	3 / 3
An Animal Contest 3 P1 - Monkey Shopping	3 / 3
An Animal Contest 3 P2 - Monkey Potato	5 / 5

Problem	Score
Another Contest 5 Problem 1 - Goat Fence	3 / 3
Another Contest 7 Problem 1 - Lonely Users	3 / 3

Problem	Score
BlueBook - Cost	3 / 3
BlueBook - Direction	3 / 3
BlueBook - Pay	3 / 3
BlueBook - Change	3 / 3
BlueBook - Times Tables	3 / 3
BlueBook - Max is Last	3 / 3
BlueBook - Interest	3 / 3
BlueBook - World Pop	3 / 3
BlueBook - Power Base	3 / 3
BlueBook - Column of Numbers	3 / 3
BlueBook - Pop Explosion	3 / 3
BlueBook - Digits and Sums	3 / 3
BlueBook - Exact Divisors	3 / 3
BlueBook - Max	3 / 3
BlueBook - Mode	3 / 3
BlueBook - Magic Square	3 / 3
BlueBook - Min	3 / 3
BlueBook - Lower Case	3 / 3
BlueBook - Prime	3 / 3
BlueBook - Grades	3 / 3
BlueBook - Leap Year	3 / 3
BlueBook - Multiple	3 / 3
BlueBook - Equation	3 / 3

Problem	Score
CCC '00 J2 - 9966	3 / 3
CCC '00 S4 - Golf	7 / 7
CCC '01 J2 - Mod Inverse	3 / 3
CCC '01 S1 - Keeping Score	5 / 5
CCC '02 J1 - 0123456789	1.600 / 3
CCC '02 J2 - AmeriCanadian	3 / 3
CCC '02 S1 - The Students' Council Breakfast	5 / 5
CCC '02 S2 - Fraction Action	5 / 5
CCC '03 J1 - Trident	3 / 3
CCC '03 S1 - Snakes and Ladders	5 / 5
CCC '03 S2 - Poetry	5 / 5
CCC '03 S3 - Floor Plan	7 / 7
CCC '04 J1 - Squares	3 / 3
CCC '04 J2 - Terms of Office	3 / 3
CCC '04 J3 - Smile with Similes	3 / 3
CCC '04 S1 - Fix	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 S1 - Snow Calls	5 / 5
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 '07 J1 - Who is in the Middle?	3 / 3
CCC '07 J2 - I Speak TXTMSG	3 / 3
CCC '07 J4 - Anagram Checker	5 / 5
CCC '07 S1 - Federal Voting Age	3 / 3
CCC '07 S3 - Friends	7 / 7
CCC '07 S4 - Waterpark	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!	3 / 3
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 '10 J1 - What is n, Daddy?	3 / 3
CCC '10 J2 - Up and Down	5 / 5
CCC '10 J3 - Punchy	5 / 5
CCC '10 J5 - Knight Hop	7 / 7
CCC '11 J1 - Which Alien?	3 / 3
CCC '11 J3 - Sumac Sequences	5 / 5
CCC '11 S1 - English or French?	5 / 5
CCC '11 S2 - Multiple Choice	3 / 3
CCC '12 J1 - Speed fines are not fine!	3 / 3
CCC '12 J2 - Sounds fishy!	3 / 3
CCC '12 J4 - Big Bang Secrets	3 / 3
CCC '12 S1 - Don't pass me the ball!	3 / 3
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 '14 J1 - Triangle Times	3 / 3
CCC '14 J2 - Vote Count	3 / 3
CCC '14 J3 - Double Dice	3 / 3
CCC '15 J1 - Special Day	3 / 3
CCC '15 J2 - Happy or Sad	3 / 3
CCC '15 J3 - Rövarspråket	5 / 5
CCC '16 J1 - Tournament Selection	3 / 3
CCC '16 J2 - Magic Squares	3 / 3
CCC '16 S1 - Ragaman	3 / 3
CCC '17 J1 - Quadrant Selection	3 / 3
CCC '17 J2 - Shifty Sum	3 / 3
CCC '17 J3 - Exactly Electrical	3 / 3
CCC '17 S1 - Sum Game	3 / 3
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 '21 J1 - Boiling Water	3 / 3
CCC '21 J2 - Silent Auction	3 / 3
CCC '21 J3 - Secret Instructions	5 / 5
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 '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 '25 J1 - Roller Coaster Ride	3 / 3
CCC '25 J2 - Donut Shop	3 / 3
CCC '25 J3 - Product Codes	5 / 5
CCC '25 J4 - Sunny Days	5 / 5
CCC '26 J1 - Concert Tickets	3 / 3
CCC '26 J2 - Olympic Scores	3 / 3
CCC '26 S1 - Baby Hop, Giant Hop	5 / 5
CCC '98 S1 - Censor	5 / 5
CCCHK '08 J2 - Lucky Number	3 / 3
CCCHK '15 J1 - Rock-paper-scissors	3 / 3

Problem	Score
Sorting	3 / 3
Next Prime	5 / 5
Unique Elements	3 / 3

User qwertie

Points breakdown

AAC (14 points)

ACC (6 points)

BlueBook (69 points)

CCC (415.600 points)

Classics (11 points)

COCI (133 points)

CSPC (6 points)

CTF (3 points)

DMOPC (198.273 points)

DWITE (44 points)

GFSSOC (12 points)

ICPC (12 points)

Mock CCC (44 points)

MWC (10 points)

SAC Coding Challenge (26 points)

Seasonal (63 points)

TLE (16.333 points)

TSOC (12 points)

Uncategorized (362.164 points)

VM7WC (12 points)

Waterloo Local (3 points)

Woburn Challenge (26 points)

Problem	Score
COCI '06 Contest 1 #1 Modulo	3 / 3
COCI '06 Contest 2 #2 ABC	3 / 3
COCI '06 Contest 2 #4 Sjecišta	7 / 7
COCI '06 Contest 5 #1 Trik	3 / 3
COCI '07 Contest 2 #2 Crne	3 / 3
COCI '07 Contest 2 #3 Prva	7 / 7
COCI '07 Contest 3 #1 Cetiri	3 / 3
COCI '07 Contest 3 #2 Oktalni	3 / 3
COCI '07 Contest 3 #4 Dejavu	7 / 7
COCI '07 Contest 5 #3 Jabuke	7 / 7
COCI '08 Contest 1 #2 Ptice	5 / 5
COCI '08 Contest 3 #1 Pet	5 / 5
COCI '09 Contest 1 #1 Note	3 / 3
COCI '09 Contest 1 #2 Domino	5 / 5
COCI '09 Contest 7 #1 Spavanac	5 / 5
COCI '10 Contest 5 #1 Gljive	3 / 3
COCI '10 Contest 6 #3 Razine	5 / 5
COCI '10 Contest 7 #1 Šećer	3 / 3
COCI '12 Contest 6 #1 Baka	3 / 3
COCI '13 Contest 3 #1 Riječi	5 / 5
COCI '13 Contest 4 #1 Nasljedstvo	3 / 3
COCI '14 Contest 2 #2 Utrka	5 / 5
COCI '14 Contest 5 #1 Funghi	3 / 3
COCI '15 Contest 5 #1 Zamka	3 / 3
COCI '16 Contest 1 #1 Tarifa	3 / 3
COCI '16 Contest 4 #1 Bridž	3 / 3
COCI '16 Contest 5 #2 Pareto	5 / 5
COCI '18 Contest 1 #1 Nadan	3 / 3
COCI '18 Contest 4 #1 Elder	5 / 5
COCI '22 Contest 3 #1 Estimathon	5 / 5
COCI '06 Regional #1 Bard	7 / 7

Problem	Score
CSPC '15 #1 - The Card Game	3 / 3
CSPC '15 #2 - Build Season	3 / 3

Problem	Score
DMOPC '13 Contest 3 P3 - Crossing Field	7 / 7
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	7 / 7
DMOPC '14 Contest 3 P1 - Not Enough Users!	3 / 3
DMOPC '14 Contest 4 P1 - New Key	3 / 3
DMOPC '14 Contest 5 P1 - Core Drill	3 / 3
DMOPC '14 Contest 5 P2 - Longest Tunnel	3 / 3
DMOPC '14 Contest 6 P1 - Finding Bessarion	3 / 3
DMOPC '14 Contest 7 P1 - Flare	3 / 3
DMOPC '14 Contest 7 P2 - Tides	5 / 5
DMOPC '15 Contest 1 P1 - Itami and Manga	3 / 3
DMOPC '15 Contest 2 P1 - Grumpy Dwarf	3 / 3
DMOPC '15 Contest 2 P2 - Admin War	3 / 3
DMOPC '15 Contest 3 P1 - Quality Scenes	3 / 3
DMOPC '15 Contest 3 P2 - Cheesecake Distribution	5 / 5
DMOPC '15 Contest 4 P1 - Dictionary	3 / 3
DMOPC '15 Contest 4 P2 - The Big Clock	5 / 5
DMOPC '15 Contest 5 P1 - Gel Bananas	3 / 3
DMOPC '15 Contest 6 P2 - Tilt	2.273 / 5
DMOPC '15 Contest 7 P2 - Not a Wall of Text	3 / 3
DMOPC '16 Contest 1 P0 - C.C. and Cheese-kun	3 / 3
DMOPC '16 Contest 1 P1 - A New Chapter	3 / 3
DMOPC '16 Contest 2 P1 - Seed Strategy	3 / 3
DMOPC '16 Contest 4 P1 - Fast Exponents	5 / 5
DMOPC '17 Contest 2 P0 - Secrets	3 / 3
DMOPC '17 Contest 2 P1 - 0-1 Knapsack	3 / 3
DMOPC '17 Contest 3 P0 - 2-Satisfiability	3 / 3
DMOPC '17 Contest 3 P1 - An Early Christmas Present	3 / 3
DMOPC '17 Contest 4 P0 - Catch	3 / 3
DMOPC '17 Contest 5 P1 - IOI 101	3 / 3
DMOPC '18 Contest 1 P0 - Sorting	3 / 3
DMOPC '18 Contest 2 P1 - Pumpkin Patches	3 / 3
DMOPC '18 Contest 2 P4 - Damage Output	7 / 7
DMOPC '18 Contest 3 P0 - Bob and ICS Class	3 / 3
DMOPC '18 Contest 4 P0 - Dr. Henri and Seeing Stars	3 / 3
DMOPC '19 Contest 3 P1 - Mode Finding	5 / 5
DMOPC '19 Contest 4 P1 - Valid Strings	5 / 5
DMOPC '19 Contest 5 P1 - Conspicuous Cryptic Checklist	5 / 5
DMOPC '20 Contest 3 P1 - Present Checking	5 / 5
DMOPC '21 Contest 10 P5 - Number Theory	20 / 20
DMOPC '21 Contest 5 P1 - Permutations & Primes	5 / 5
DMOPC '21 Contest 9 P2 - String Puzzle	7 / 7
DMOPC '22 Contest 2 P1 - DMOPC Crisis	5 / 5
DMPG '15 B1 - Loner Phoner	3 / 3
DMPG '16 B1 - BFS	3 / 3
DMPG '19 B3 - Contact	3 / 3

Problem	Score
DWITE '07 R1 #1 - Vanilla Primes	3 / 3
DWITE '07 R1 #3 - Where's my QWERTY?	3 / 3
DWITE '07 R1 #4 - Stacks of Blocks	5 / 5
DWITE '07 R2 #3 - Floor Plan	7 / 7
DWITE '07 R3 #1 - Yet Another Primes Question	5 / 5
DWITE '07 R5 #1 - I heart you	3 / 3
DWITE '08 R2 #2 - My favourite digit	3 / 3
DWITE '09 R4 #2 - Verifying Distributed Work	3 / 3
DWITE '09 R5 #1 - ASCII bar graphs	3 / 3
DWITE '09 R6 #1 - ROT13 Encryption	3 / 3
DWITE '11 R1 #4 - C001 Numbers	3 / 3
DWITE '12 R2 #3 - Bitstrings	3 / 3

Problem	Score
GFSS Christmas Challenge P1 - Arithmetic Operators	3 / 3
GFSSOC '15 Fall J1 - CodeFights	3 / 3
GFSSOC '15 Winter J2 - Purchasing Presents	3 / 3
GFSSOC '15 Fall Practice P1 - Bruno and Trig	3 / 3

Problem	Score
ACM U of T Tryouts C0 A - Max Flow	3 / 3
ACM U of T Tryouts C3 A - A Research Project	3 / 3
ACM U of T Tryouts C3 B - A Careful Reply	3 / 3
ICPC NAQ 2016 A - A New Alphabet	3 / 3

Problem	Score
Mock CCC '20 Contest 1 J3 - A Geometry Problem	3 / 3
Mock CCC '22 Contest 1 J1 - Square Root Decomposition	3 / 3
Mock CCC '23 Contest 1 J1 - Final Velocity	3 / 3
Mock CCC '23 Contest 1 J2 - Healthy Schedule	3 / 3
Mock CCC '24 Contest 1 J1 - Lemon Bathtub	3 / 3
Mock CCC '14 J1 - Love Overdose	3 / 3
Mock CCC '18 Contest 1 J1 - A String Problem	3 / 3
Mock CCC '18 Contest 5 J1 - Looking for the CCC	3 / 3
Mock CCC '18 Contest 5 J4/S2 - Reverse Sort	5 / 5
Mock CCC '19 Contest 1 J1 - Pusheen's Report Card	3 / 3
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card	3 / 3
Mock CCC '19 Contest 2 J1 - Tudor Drinks Some Tea	3 / 3
Mock CCC '19 Contest 2 J2 - Tudor Drinks Some More Tea	3 / 3
Mock CCC '19 Contest 2 J4 - Tudor Buys Some Cheesecake	3 / 3

Problem	Score
SAC '21 Code Challenge P1 - Shrinkage	3 / 3
SAC '22 Code Challenge 1 P1 - That Teacher	3 / 3
SAC '22 Code Challenge 3 Junior P1 - Normal Problem	3 / 3
SAC '22 Code Challenge 3 P1 - Hair Hazards	3 / 3
SAC '22 Code Challenge 4 Junior P1 - Obligatory DeMello Problem	3 / 3
SAC '22 Code Challenge 5 Junior P1 - Monkey, Type!	3 / 3
SAC '22 Code Challenge 5 Junior P2 - Badminton Scoring	3 / 3
SAC '22 Code Challenge 5 P2 - Querying Extensions	5 / 5

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back From Summer '19 P1: Winnie's Orphans	3 / 3
Back To School '16: Cherry Tree	12 / 12
Back To School '17: Avalon	5 / 5
Back To School '18: Letter Frequency	7 / 7
CCCJQR P3	7 / 7
Miracle Sort	3 / 3
Piggy	7 / 7
Too Simple	7 / 7
New Year's '18 P2 - Mimi and Christmas Cake	5 / 5

Problem	Score
TLE '16 Contest 4 P1 - Stack of Presents	5 / 5
TLE '16 Contest 6 (Mock CCC) S1 - Writing the CCC	3.333 / 5
TLE '17 Contest 2 P2 - Unlucky Numbers	5 / 5
TLE '17 Contest 5 P1 - Guess the Number	3 / 3

Problem	Score
TSOC '15 Contest 2 #2 - Diamonds	5 / 5
TSOC '16 Contest 1 #4 - Alex and Animal Rights	7 / 7

Problem	Score
Mispelling	3 / 3
Triple Fat Ladies	5 / 5
AAAA 1 P1 - Even-Odd Sort	7 / 7
AAAA 1 P2 - Heavy-Light Composition	7 / 7
Appleby Contest '19 P1 - Darcy's Debilitating Demands	3 / 3
Appleby Contest '19 P2 - The Love Letter	5 / 5
Appleby Contest '19 P3 - A Recursion Problem	5 / 5
Arcadia Computing Contest 1 P1 - Test Anxiety	3 / 3
Arcadia Computing Contest 2 P1 - Rejected	3 / 3
Arcadia Computing Contest 2 P2 - Tennis	5 / 5
Sum of Primes 2	1 / 5
Amplitude Hackathon Summer '24 Problem 1 - Is Jeffrey in the Office?	3 / 3
Amplitude Hackathon Winter '24 Problem 1 - Twila's Walk	3 / 3
A Plus B	3 / 3
PEG Test '14 - Water	3 / 3
List Minimum	3 / 3
List Minimum (Easy)	3 / 3
List Minimum (Hard)	5 / 5
String Finding	5 / 5
Binary	5 / 5
Boolean	3 / 3
BPC 1 J1 - Facial Recognition	3 / 3
BPC 1 J2 - Cake	3 / 3
BSSPC '21 J1 - Eggy's New Clothes	3 / 3
BSSPC '21 J4 - James's Magical Soups	7 / 7
BSSPC '22 P1 - Bubble Tea Tracker	3 / 3
Chocolate Bar	5 / 5
3n+1	3 / 3
CPC '19 Contest 1 P1 - Distance	3 / 3
Dr. Anne Anderson Coding Contest 1 P1 - Due Dates	3 / 3
German Nouns	5 / 5
A Game	10 / 10
Educational DP Contest AtCoder D - Knapsack 1	7 / 7
Educational DP Contest AtCoder E - Knapsack 2	7 / 7
Educational DP Contest AtCoder H - Grid 1	7 / 7
Educational DP Contest AtCoder P - Independent Set	12 / 12
Emoji Search	5 / 5
Fast Factorial Calculator	7 / 7
Fast Bit Counting	3 / 3
Troubling Triangles	7 / 7
GlobeX Cup '18 J1 - Rounding Errors	0.164 / 3
Graph Contest 1 P2 - Shortest Path	5 / 5
Hailstone Numbers	3 / 3
Hard Question	5 / 5
Hello, World!	3 / 3
Lil' Jami	5 / 5
OTHS Coding Competition 1 (Mock CCC) J1 - Math Assistance	3 / 3
OTHS Coding Competition 4 P1 - Square Root Decomposition	3 / 3
Path Finder	10 / 10
The Mirror	5 / 5
The Third Cellar	10 / 10
The Torture Chamber	15 / 15
Confirmation Bias	10 / 10
Postfix Notation	7 / 7
Primes	3 / 3
Primes 2	15 / 15
Rat In A Maze	5 / 5
Better Censor	7 / 7
The Cosmic Era P2 - Uneven Sand	5 / 5
Python Infinite Loop	7 / 7
Bubble Sort	7 / 7
Coding Spree	7 / 7
STNBD P1 - Ren Ashbell	3 / 3
THICC '17 P2 - Molly and Product	7 / 7
UTS Open '18 P1 - Love Triangle	3 / 3
Valentine's Day '19 J2 - Pink!	3 / 3
VPEX P0 - Pizza	3 / 3
XOR	7 / 7
XOR Sum	10 / 10

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

Problem	Score
WC '15 Contest 1 J1 - Do You Know Your Woburn Colours?	3 / 3
WC '15 Contest 2 J1 - A New Hope	3 / 3
WC '16 Contest 1 J1 - A Spooky Season	3 / 3
WC '17 Contest 1 J1 - Canadian Accent	3 / 3
WC '17 Contest 1 J2 - How's the Weather?	3 / 3
WC '17 Contest 3 J3 - Uncrackable	5 / 5
WC '18 Contest 1 J2 - Making the Cut	3 / 3
WC '18 Contest 3 J1 - An Honest Day's Work	3 / 3