User qwerttiger

Points breakdown

15 / 15

AC | PYPY3

DMOPC '20 Contest 3 P5 - Tower of Power

on Jan. 29, 2026, 1:36 p.m.

25pp

weighted 100% (25pp)

100 / 100

AC | C++20

IOI '15 P5 - Sorting

on Jan. 22, 2026, 8:56 p.m.

25pp

weighted 95% (24pp)

100 / 100

AC | PYPY3

TLE '16 Contest 1 P6 - A Very Normal Test

on Feb. 13, 2025, 7:25 p.m.

25pp

weighted 90% (23pp)

100 / 100

AC | PYPY3

UTS Open '15 #3 - Pogo

on Feb. 13, 2025, 3:17 p.m.

25pp

weighted 86% (21pp)

21 / 21

AC | PYPY3

Google Code Jam '22 Round 2 Problem B - Pixelated Circle

on Feb. 13, 2025, 1:16 p.m.

25pp

weighted 81% (20pp)

15 / 15

AC | C++20

CCC '23 S5 - The Filter

on Jan. 30, 2026, 3:59 p.m.

20pp

weighted 77% (15pp)

100 / 100

AC | TEXT

DMOPC '22 Contest 5 P6 - Threes and Twos

on Jan. 29, 2026, 2:45 p.m.

20pp

weighted 74% (15pp)

15 / 15

AC | C++20

CCC '19 S5 - Triangle: The Data Structure

on Jan. 29, 2026, 2:00 p.m.

20pp

weighted 70% (14pp)

50 / 50

AC | PYPY3

Canada Day Contest 2021 - 0-1

on Jan. 29, 2026, 2:03 a.m.

20pp

weighted 66% (13pp)

15 / 15

AC | PYPY3

CCC '16 S5 - Circle of Life

on Jan. 28, 2026, 6:52 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 2 P0 - Koala Matchmaking	3 / 3
An Animal Contest 3 P1 - Monkey Shopping	3 / 3
An Animal Contest 6 P2 - G-Pop	7 / 7

Problem	Score
CCO '07 P2 - Snowflakes	10 / 10
CCO '10 P2 - Tree Pruning	15 / 15
CCO '15 P4 - Cars on Ice	10 / 10
CCO '16 P5 - Zombie Apocalypse	15 / 15

Problem	Score
2-Dimensional Range Minimum Query	17 / 17
Sorting	3 / 3
Quine	10 / 10

Problem	Score
COCI '06 Contest 2 #2 ABC	3 / 3
COCI '07 Contest 1 #5 Srednji	7 / 7
COCI '07 Contest 3 #5 Cudak	15 / 15
COCI '08 Contest 2 #1 Kornislav	5 / 5
COCI '09 Contest 4 #4 Ograda	15 / 15
COCI '09 Contest 6 #1 Kajak	5 / 5
COCI '10 Contest 7 #5 Kuglice	12 / 12
COCI '16 Contest 3 #2 Pohlepko	7 / 7
COCI '16 Contest 5 #4 Ronald	12 / 12
COCI '18 Contest 1 #1 Nadan	3 / 3
COCI '22 Contest 4 #5 Vrsta	12 / 12

Problem	Score
DMOPC '20 Contest 3 P5 - Tower of Power	25 / 25
DMOPC '21 Contest 10 P1 - Japaneasy	5 / 5
DMOPC '21 Contest 5 P2 - Permutations & Primes	7 / 7
DMOPC '22 Contest 3 P1 - Holiday Colouring	5 / 5
DMOPC '22 Contest 5 P6 - Threes and Twos	20 / 20

User qwerttiger

Points breakdown

AAC (21 points)

ACC (12 points)

Baltic OI (15 points)

CCC (1532 points)

CCO (50 points)

China NOI (15 points)

Classics (30 points)

COCI (96 points)

CTF (3 points)

Data Structure Tests (15 points)

DMOPC (62 points)

Google Code Jam (95 points)

ICPC (3 points)

IOI (25 points)

JOI (33.900 points)

Olympiads School (22 points)

Seasonal (46 points)

SIUCF (15 points)

TLE (32 points)

Uncategorized (530 points)

Woburn Challenge (24 points)

YAC (22 points)

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 J2 - Mod Inverse	3 / 3
CCC '01 S1 - Keeping Score	5 / 5
CCC '01 S2 - Spirals	5 / 5
CCC '01 S2 - Spirals (Exact Version)	7 / 7
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '01 S4 - Cookies	10 / 10
CCC '01 S5 - Post's Correspondence Problem	10 / 10
CCC '02 J1 - 0123456789	3 / 3
CCC '02 J1 - 0123456789 (Hard)	5 / 5
CCC '02 J2 - AmeriCanadian	3 / 3
CCC '02 S1 - The Students' Council Breakfast	5 / 5
CCC '02 S2 - Fraction Action	5 / 5
CCC '02 S4 - Bridge Crossing	10 / 10
CCC '02 S5 - Follow the Bouncing Ball	10 / 10
CCC '03 J1 - Trident	3 / 3
CCC '03 J2 - Picture Perfect	3 / 3
CCC '03 S1 - Snakes and Ladders	5 / 5
CCC '03 S2 - Poetry	5 / 5
CCC '03 S3 - Floor Plan	7 / 7
CCC '03 S4 - Substrings	15 / 15
CCC '03 S5 - Trucking Troubles	10 / 10
CCC '04 J1 - Squares	3 / 3
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 '04 S3 - Spreadsheet	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 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 '05 S4 - Pyramid Message Scheme	10 / 10
CCC '05 S5 - Pinball Ranking	12 / 12
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 J5 - CCC Othello	10 / 10
CCC '06 S1 - Maternity	5 / 5
CCC '06 S2 - Attack of the CipherTexts	5 / 5
CCC '06 S3 - Tin Can Telephone	12 / 12
CCC '06 S4 - Groups	10 / 10
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 '07 S4 - Waterpark	7 / 7
CCC '07 S5 - Bowling for Numbers	10 / 10
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 J4 - From Prefix to Postfix	7 / 7
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 '08 S4 - Twenty-four	10 / 10
CCC '08 S5 - Nukit	10 / 10
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	7 / 7
CCC '09 S1 - Cool Numbers	5 / 5
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 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 S1 - Computer Purchase	5 / 5
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 '11 S5 - Switch	12 / 12
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 '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 S3 - Chances of Winning	10 / 10
CCC '13 S4 - Who is Taller?	7 / 7
CCC '13 S5 - Factor Solitaire	15 / 15
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 J5 - π-day	10 / 10
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 S1 - Ragaman	3 / 3
CCC '16 S2 - Tandem Bicycle	5 / 5
CCC '16 S3 - Phonomenal Reviews	12 / 12
CCC '16 S5 - Circle of Life	20 / 20
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 '18 S3 - RoboThieves	10 / 10
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 '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 S2 - Escape Room (Hard)	3 / 15
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 S1 - Crazy Fencing	5 / 5
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 '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 '22 S4 - Good Triplets	15 / 15
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	10 / 10
CCC '23 S5 - The Filter	20 / 20
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 '24 S1 - Hat Circle	3 / 3
CCC '24 S2 - Heavy-Light Composition	5 / 5
CCC '24 S3 - Swipe	10 / 10
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 '25 J5 - Connecting Territories	7 / 7
CCC '25 S1 - Positioning Peter's Paintings	3 / 3
CCC '25 S2 - Cryptogram Cracking Club	7 / 7
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 S1 - Deficient, Perfect, and Abundant	5 / 5
CCC '96 S2 - Divisibility by 11	7 / 7
CCC '96 S3 - Pattern Generator	5 / 5
CCC '96 S4 - When in Rome	10 / 10
CCC '96 S5 - Maximum Distance	7 / 7
CCC '97 S1 - Sentences	5 / 5
CCC '97 S2 - Nasty Numbers	5 / 5
CCC '97 S3 - Double Knockout Competition	5 / 5
CCC '97 S4 - Dynamic Dictionary Coding	5 / 5
CCC '97 S5 - Long Division	10 / 10
CCC '98 S1 - Censor	5 / 5
CCC '98 S2 - Cross Number Puzzle	5 / 5
CCC '98 S3 - Mars Rover	7 / 7
CCC '98 S4 - Lottery	10 / 10
CCC '98 S5 - Mountain Passage	10 / 10
CCC '99 S1 - Card Game	5 / 5
CCC '99 S2 - Year 2000	7 / 7
CCC '99 S3 - Divided Fractals	7 / 7
CCC '99 S4 - A Knightly Pursuit	12 / 12
CCC '99 S5 - Letter Arithmetic	12 / 12
CCOQR '16 - Stupendous Bowties	10 / 10
CCCHK '08 J1 - Best fish	3 / 3
CCCHK '08 J2 - Lucky Number	3 / 3
CCCHK '08 J3 - Phone book	5 / 5
CCCHK '08 J4 - Tic-tac-toe	5 / 5
CCCHK '15 J1 - Rock-paper-scissors	3 / 3
CCCHK '15 J2 - What is the minimum area?	5 / 5
CCCHK '15 J3 - Queens can't attack me!	5 / 5
CCCHK '15 J4 - Where to build my house?	5 / 5
CCCHK '15 J5 - No friends in the same group.	15 / 15
CCCHK '15 S1 - Finding number of pairs	7 / 7
CCCHK '15 S2 - Matching Problem	10 / 10
CCCHK '15 S4 - When to meet?	15 / 15

Problem	Score
Google Code Jam '08 Qualification Round Problem A - Fly Swatter	20 / 20
Google Code Jam '08 Round 1A Problem C - Numbers	20 / 20
Google Code Jam '10 Round 1A Problem C - Number Game	20 / 20
Google Code Jam '17 Qualification Round Problem C - Bathroom Stalls	10 / 10
Google Code Jam '22 Round 2 Problem B - Pixelated Circle	25 / 25

Problem	Score
JOI '05 Final Round P1 - Questionnaire	3 / 3
JOI '05 Final Round P2 - String	5 / 5
JOI '05 Final Round P3 - Square	5 / 5
JOI '05 Final Round P4 - String of Rings	4.900 / 7
JOI '05 Final Round P5 - Sheets	6 / 15
JOI '16 Final P1 - Foehn Phenomena	10 / 10

Problem	Score
OCC '19 G1 - Top Coder	10 / 10
OCC '19 S4 - Playing with Numbers	12 / 12

Problem	Score
Back To School '16: Cherry Tree	12 / 12
Canada Day Contest 2021 - 0-1	20 / 20
Too Simple	7 / 7
New Year's '18 P4 - The Polar Express	7 / 7

Problem	Score
TLE '16 Contest 1 P6 - A Very Normal Test	25 / 25
TLE '16 Contest 3 P4 - Gaussian Elimination	7 / 7

Problem	Score
16 BIT S/W ONLY	3 / 3
2048	15 / 15
2spooky4me	7 / 7
Rotations in 3 Dimensions	12 / 12
Mispelling	3 / 3
Mirrored Pairs	3 / 3
Triple Fat Ladies	5 / 5
A Digit Problem	12 / 12
Arcadia Computing Contest 2 P1 - Rejected	3 / 3
Arcadia Computing Contest 2 P2 - Tennis	5 / 5
Arcadia Computing Contest 2 P3 - Alternato	7 / 7
Arcadia Computing Contest 2 P4 - Choose Your Own Adventure!	7 / 7
Arcadia Computing Contest 2 P5 - lp0 is on fire!	10 / 10
Angie and Functions	20 / 20
A Plus B	3 / 3
Art Academy VII: A Mysterious Object	12 / 12
List Minimum	3 / 3
List Minimum (Easy)	3 / 3
Bob Hates Triangles	7 / 7
Boolean	3 / 3
Checkerboard Summation (Easy)	12 / 12
Checkerboard Summation (Hard)	15 / 15
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
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
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
Fibonacci Sequence	15 / 15
Fibonacci Sequence (Harder)	17 / 17
GlobeX Cup '18 S3 - Playing With Bits	10 / 10
Good Aim	10 / 10
Graph Contest 1 P1 - Counting Paths	10 / 10
Hello, World!	3 / 3
HHPC1 P4 - Yet Another A+B Problem	10 / 10
Liars	15 / 15
Ones	10 / 10
Path Finder	10 / 10
π𝓮s	15 / 15
Self-deception	15 / 15
Disclosure	10 / 10
Decoding	20 / 20
Ray Needs Help	12 / 20
RGPC '17 P4 - Snow Day	10 / 10
South African Computer Olympiad 2008 Day 1 Problem 3 - Visiting Grandma	15 / 15
Touching Segments	4 / 20
Python Infinite Loop	7 / 7
Threes	3 / 3
UTS Open '15 #3 - Pogo	25 / 25
XOR Minimum	17 / 17
XOR Sum	10 / 10

Problem	Score
WC '15 Contest 2 S2 - Attack of the Clones	12 / 12
WC '16 Contest 3 S2 - Training Regimen	12 / 12

Problem	Score
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