User ctrlalt

Points breakdown

110 / 110

AC | C++20

COCI '21 Contest 2 #5 Osumnjičeni

on Dec. 27, 2025, 5:04 p.m.

20pp

weighted 100% (20pp)

96 / 100

AC | C++20

IOI '13 P2 - Art Class (Standard I/O)

on Dec. 11, 2025, 12:56 a.m.

19pp

weighted 95% (18pp)

100 / 100

AC | C++20

CCO Preparation Test 5 P2 - Corporative Network

on Jan. 29, 2026, 6:06 a.m.

15pp

weighted 90% (14pp)

100 / 100

AC | C++20

Fibonacci Sequence

on Jan. 15, 2026, 7:25 p.m.

15pp

weighted 86% (13pp)

100 / 100

AC | C++20

Educational DP Contest AtCoder R - Walk

on Nov. 26, 2025, 4:23 p.m.

15pp

weighted 81% (12pp)

110 / 110

AC | C++20

Binary Search Tree Test

on Nov. 9, 2025, 4:37 p.m.

15pp

weighted 77% (12pp)

21 / 25

AC | C++20

CCO '99 P6 - Fast Food

on Dec. 8, 2025, 2:16 p.m.

12pp

weighted 74% (9.0pp)

130 / 130

AC | C++20

COCI '10 Contest 1 #4 Ljutnja

on Jan. 17, 2026, 3:16 p.m.

12pp

weighted 70% (8.4pp)

10 / 10

AC | C++20

DWITE '11 R5 #4 - Cube World

on Jan. 15, 2026, 7:07 p.m.

12pp

weighted 66% (8.0pp)

1 / 1

AC | C++20

DWITE '10 R5 #5 - Cube World

on Jan. 15, 2026, 7:06 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 P1 - Koala Konundrum	5 / 5
An Animal Contest 3 P1 - Monkey Shopping	3 / 3
An Animal Contest 5 P1 - Bamboo Cookies	3 / 3
An Animal Contest 6 P1 - Workout Routine	5 / 5
An Animal Contest 7 P1 - Squirrnect 4	3 / 3

Problem	Score
Another Contest 5 Problem 1 - Goat Fence	3 / 3
Another Contest 5 Problem 2 - Great Graffiti	5 / 5
Another Contest 5 Problem 3 - Cutting Cheese Costs	5 / 5
Another Contest 7 Problem 1 - Lonely Users	3 / 3
Another Contest 8 Problem 1 - Trash Push	3 / 3
Another Contest 8 Problem 2 - Unnecessary Trash Push	3 / 3

Problem	Score
BlueBook - Cross Country	3 / 3
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 - Powers of 2	3 / 3
BlueBook - Find the Character	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 - 10 Primes on a Line	5 / 5
BlueBook - Bills Bills Bills	7 / 7
BlueBook - Max	3 / 3
BlueBook - Payment	3 / 3
BlueBook - Mode	3 / 3
BlueBook - Magic Square	3 / 3
BlueBook - Triangle	3 / 3
BlueBook - Sieve	5 / 5
BlueBook - Voting	3 / 3
BlueBook - Min	3 / 3
BlueBook - First Blank	3 / 3
BlueBook - Digits	3 / 3
BlueBook - Lower Case	3 / 3
BlueBook - Prime	3 / 3
BlueBook - Days	3 / 3
BlueBook - Grades	3 / 3
BlueBook - Leap Year	3 / 3
BlueBook - Calculator	7 / 7
BlueBook - Multiple	3 / 3
BlueBook - Equation	3 / 3

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 S4 - Golf	7 / 7
CCC '01 J1 - Dressing Up	3 / 3
CCC '01 J2 - Mod Inverse	3 / 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 J2 - Picture Perfect	3 / 3
CCC '03 S1 - Snakes and Ladders	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 J4 - Simple Encryption	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 '05 S2 - Mouse Move	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 '06 J4 - It's tough being a teen!	7 / 7
CCC '06 S2 - Attack of the CipherTexts	2 / 5
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 S1 - Federal Voting Age	3 / 3
CCC '07 S3 - Friends	7 / 7
CCC '08 J1 - Body Mass Index	3 / 3
CCC '08 J2 - Do the Shuffle	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 S5 - Nukit	10 / 10
CCC '09 J1 - ISBN	3 / 3
CCC '09 J2 - Old Fishin' Hole	5 / 5
CCC '09 S1 - Cool Numbers	5 / 5
CCC '09 S4 - Shop and Ship	10 / 10
CCC '10 J1 - What is n, Daddy?	3 / 3
CCC '10 J2 - Up and Down	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 J5 - Unfriend	7 / 7
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 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 '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 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 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	4.200 / 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 S1 - Good Fours and Good Fives	5 / 5
CCC '22 S2 - Good Groups	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 S1 - Trianglane	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 S1 - Hat Circle	3 / 3
CCC '24 S2 - Heavy-Light Composition	5 / 5
CCC '25 J1 - Roller Coaster Ride	3 / 3
CCC '25 J2 - Donut Shop	3 / 3
CCC '25 S1 - Positioning Peter's Paintings	3 / 3
CCC '96 S1 - Deficient, Perfect, and Abundant	5 / 5
CCC '97 S2 - Nasty Numbers	5 / 5
CCC '98 S1 - Censor	5 / 5
CCC '98 S2 - Cross Number Puzzle	5 / 5
CCCHK '08 J1 - Best fish	3 / 3
CCCHK '08 J2 - Lucky Number	3 / 3
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

Problem	Score
CCO '00 P4 - Packet Routing	7 / 7
CCO '07 P2 - Snowflakes	10 / 10
CCO '96 P5 - All Roads Lead Where?	7 / 7
CCO '99 P6 - Fast Food	12.300 / 15

User ctrlalt

Points breakdown

AAC (25 points)

ACC (22 points)

BlueBook (120 points)

Bubble Cup (5 points)

CCC (626.200 points)

CCO (36.300 points)

China NOI (3 points)

Classics (25 points)

COCI (348 points)

CSPC (3 points)

CTF (14 points)

Data Structure Tests (25 points)

DMOPC (213 points)

DWITE (219 points)

ECOO (29 points)

GFSSOC (71 points)

Google Code Jam (3 points)

ICPC (52 points)

IOI (53.200 points)

JOI (5 points)

Mock CCC (141 points)

Mock CCO (25 points)

MWC (18 points)

Olympiads School (7 points)

SAC Coding Challenge (79 points)

Seasonal (113 points)

SIUCF (17 points)

TLE (18 points)

TSOC (7 points)

Uncategorized (681 points)

VM7WC (41 points)

WAC (6 points)

Waterloo Local (10 points)

Woburn Challenge (132 points)

YAC (5 points)

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

Problem	Score
COCI '06 Contest 1 #1 Modulo	3 / 3
COCI '06 Contest 1 #2 Herman	5 / 5
COCI '06 Contest 2 #1 R2	3 / 3
COCI '06 Contest 2 #2 ABC	3 / 3
COCI '06 Contest 2 #3 Kolone	7 / 7
COCI '06 Contest 2 #4 Sjecišta	7 / 7
COCI '06 Contest 3 #1 Patuljci	5 / 5
COCI '06 Contest 3 #2 N-puzzle	5 / 5
COCI '06 Contest 4 #1 Sibice	3 / 3
COCI '06 Contest 4 #2 Skener	3 / 3
COCI '06 Contest 4 #3 Prsteni	5 / 5
COCI '06 Contest 5 #1 Trik	3 / 3
COCI '06 Contest 6 #1 Prase	5 / 5
COCI '06 Contest 6 #2 Magija	5 / 5
COCI '07 Contest 2 #1 Bijele	3 / 3
COCI '07 Contest 3 #2 Oktalni	3 / 3
COCI '07 Contest 5 #2 Pascal	5 / 5
COCI '08 Contest 1 #2 Ptice	5 / 5
COCI '08 Contest 2 #3 Perket	7 / 7
COCI '08 Contest 3 #1 Pet	5 / 5
COCI '08 Contest 3 #2 Kemija	5 / 5
COCI '08 Contest 5 #2 Jabuka	5 / 5
COCI '09 Contest 1 #1 Note	3 / 3
COCI '09 Contest 1 #2 Domino	5 / 5
COCI '09 Contest 2 #1 Faktor	3 / 3
COCI '09 Contest 4 #2 Planina	5 / 5
COCI '09 Contest 6 #1 Kajak	5 / 5
COCI '09 Contest 7 #1 Spavanac	5 / 5
COCI '10 Contest 1 #1 Timsko	3 / 3
COCI '10 Contest 1 #4 Ljutnja	12 / 12
COCI '10 Contest 2 #1 Puž	3 / 3
COCI '10 Contest 3 #2 Zbroj	3 / 3
COCI '10 Contest 5 #1 Gljive	3 / 3
COCI '10 Contest 6 #2 Uspon	5 / 5
COCI '10 Contest 7 #1 Šećer	3 / 3
COCI '10 Contest 7 #3 Gitara	7 / 7
COCI '11 Contest 2 #1 Najboljih 5	5 / 5
COCI '11 Contest 6 #2 Prozori	5 / 5
COCI '11 Contest 6 #4 Rez	10 / 10
COCI '12 Contest 1 #1 DOM	3 / 3
COCI '12 Contest 2 #1 Mortadela	3 / 3
COCI '12 Contest 6 #1 Baka	3 / 3
COCI '13 Contest 3 #1 Riječi	5 / 5
COCI '13 Contest 3 #2 Okvir	5 / 5
COCI '13 Contest 5 #2 Obilazak	7 / 7
COCI '14 Contest 1 #1 Prosjek	5 / 5
COCI '14 Contest 3 #1 Strojopis	5 / 5
COCI '14 Contest 4 #1 Cesta	5 / 5
COCI '15 Contest 4 #3 Deathstar	7 / 7
COCI '15 Contest 5 #1 Zamka	3 / 3
COCI '15 Contest 7 #4 Otpor	12 / 12
COCI '16 Contest 1 #1 Tarifa	3 / 3
COCI '16 Contest 2 #1 Go	3 / 3
COCI '16 Contest 4 #1 Bridž	3 / 3
COCI '16 Contest 4 #2 Kartomat	5 / 5
COCI '16 Contest 5 #1 Tuna	3 / 3
COCI '16 Contest 7 #1 Baza	5 / 5
COCI '17 Contest 2 #1 Košnja	3 / 3
COCI '17 Contest 5 #1 Olivander	5 / 5
COCI '17 Contest 6 #1 Davor	5 / 5
COCI '17 Contest 7 #1 Prosjek	5 / 5
COCI '18 Contest 2 #1 Preokret	5 / 5
COCI '18 Contest 3 #1 Magnus	5 / 5
COCI '18 Contest 4 #1 Elder	5 / 5
COCI '20 Contest 4 #1 Pizza	5 / 5
COCI '20 Contest 6 #1 Bold	5 / 5
COCI '21 Contest 2 #1 Kaučuk	5 / 5
COCI '21 Contest 2 #5 Osumnjičeni	20 / 20
COCI '22 Contest 1 #1 Desni Klik	5 / 5
COCI '23 Contest 4 #1 Bingo	5 / 5

Problem	Score
DMOJ Capture The Flag '20 G1 - Sanity Check	3 / 3
DMOJ Capture The Flag '20 G2 - Where's the flag?	3 / 3
DMOJ Capture The Flag '20 F1 - RGB	3 / 3
DMOJ Capture The Flag '20 F2 - Queries & Strings	5 / 5

Problem	Score
DMOPC '14 Contest 1 P2 - Tiles	3 / 3
DMOPC '14 Contest 2 P3 - Sawmill	7 / 7
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
DMOPC '14 Contest 3 P1 - Not Enough Users!	3 / 3
DMOPC '14 Contest 5 P1 - Core Drill	3 / 3
DMOPC '14 Contest 5 P2 - Longest Tunnel	3 / 3
DMOPC '14 Contest 5 P3 - Brotherly Sequence	5 / 5
DMOPC '14 Contest 7 P1 - Flare	3 / 3
DMOPC '14 Exam Time P1 - French Homework	3 / 3
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 4 P1 - Dictionary	3 / 3
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 3 P0 - Negative Feedback	3 / 3
DMOPC '16 Contest 3 P1 - Leading Basic Shots	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 '18 Contest 1 P0 - Sorting	3 / 3
DMOPC '18 Contest 1 P2 - Sorting	5 / 5
DMOPC '18 Contest 2 P0 - Mimi and Video Games	3 / 3
DMOPC '18 Contest 2 P1 - Pumpkin Patches	3 / 3
DMOPC '18 Contest 5 P3 - A Familiar Problem	7 / 7
DMOPC '19 Contest 1 P0 - Range Finding	3 / 3
DMOPC '19 Contest 1 P1 - Test Scores	5 / 5
DMOPC '19 Contest 2 P0 - Roller Coaster	3 / 3
DMOPC '19 Contest 2 P2 - Squares	7 / 7
DMOPC '19 Contest 5 P0 - Concurrent Competitor Counting	3 / 3
DMOPC '19 Contest 5 P1 - Conspicuous Cryptic Checklist	5 / 5
DMOPC '19 Contest 6 P0 - Trivial Math	3 / 3
DMOPC '20 Contest 1 P1 - Victor Gets Quizzed	3 / 3
DMOPC '20 Contest 1 P2 - Victor's Moral Dilemma	5 / 5
DMOPC '20 Contest 3 P1 - Present Checking	5 / 5
DMOPC '20 Contest 5 P1 - Home Row	3 / 3
DMOPC '21 Contest 1 P1 - Partial Game	5 / 5
DMOPC '21 Contest 4 P3 - Palindromic Presents	12 / 12
DMOPC '21 Contest 6 P1 - Bigger Big Integer	3 / 3
DMOPC '21 Contest 6 P2 - Gacha Luck	7 / 7
DMOPC '22 Contest 2 P2 - Line Trace	7 / 7
DMOPC '22 Contest 3 P1 - Holiday Colouring	5 / 5
DMOPC '22 Contest 5 P1 - Triple Triplets	5 / 5
DMPG '16 B1 - BFS	3 / 3
DMPG '17 S2 - Anime Conventions	10 / 10
DMPG '18 B1 - Pizza Orders	3 / 3
DMPG '18 B2 - Mimi and Modulus	3 / 3
DMPG '18 B5 - Mimi and Substrings	7 / 7
DMPG '19 B1 - Registration	3 / 3

Problem	Score
DWITE '06 R5 #2 - Floppy Disk	7 / 7
DWITE '07 R1 #1 - Vanilla Primes	3 / 3
DWITE '07 R1 #2 - Cubes in a Pyramid	3 / 3
DWITE '07 R2 #1 - Not Quite Prime	5 / 5
DWITE '07 R2 #3 - Floor Plan	7 / 7
DWITE '07 R5 #3 - Parity bit	5 / 5
DWITE '08 R1 #1 - LaNDscAPE ii	3 / 3
DWITE '08 R1 #4 - What is this Roman Numeral	7 / 7
DWITE '08 R2 #2 - My favourite digit	3 / 3
DWITE '08 R2 #4 - Big shiny tunes	7 / 7
DWITE '08 R3 #1 - ASCII Rhombus	5 / 5
DWITE '08 R3 #4 - Time for change	7 / 7
DWITE '08 R4 #1 - Four player Pong with no players	7 / 7
DWITE '09 R1 #1 - iProfits	3 / 3
DWITE '09 R1 #2 - Word Scrambler	5 / 5
DWITE '09 R1 #3 - That Missing Number	5 / 5
DWITE '09 R1 #4 - My First True Letter	3 / 3
DWITE '09 R3 #2 - Rounding to Fibonacci	5 / 5
DWITE '09 R3 #3 - Binary Test Strings 2	5 / 5
DWITE '09 R4 #1 - Social Media Overload	3 / 3
DWITE '09 R5 #1 - ASCII bar graphs	3 / 3
DWITE '09 R5 #2 - Round to Second Prime	5 / 5
DWITE '09 R6 #4 - Time for Change	7 / 7
DWITE '09 R6 #5 - Air Travel Planning	7 / 7
DWITE '09 R7 #2 - Sum of Primes	5 / 5
DWITE '09 R7 #5 - Snapper Chain	10 / 10
DWITE '10 R1 #1 - Age Gate	3 / 3
DWITE '10 R1 #3 - Power tiles	5 / 5
DWITE '10 R3 #4 - Forest Fires	7 / 7
DWITE '10 R3 #5 - E-Searching	7 / 7
DWITE '10 R4 #3 - Binary Weight	5 / 5
DWITE '10 R5 #5 - Cube World	12 / 12
DWITE '11 R1 #5 - Tattarrattat	10 / 10
DWITE '11 R5 #1 - Age Gate	3 / 3
DWITE '11 R5 #2 - Forest Fires	7 / 7
DWITE '11 R5 #4 - Cube World	12 / 12
DWITE '11 R5 #5 - Binary Weight	5 / 5
DWITE '12 R1 #2 - Candybar Graphs	5 / 5
DWITE '12 R2 #3 - Bitstrings	3 / 3

Problem	Score
ECOO '14 R1 P2 - Orphan Black	5 / 5
ECOO '14 R3 P4 - Baby Talk	10 / 10
ECOO '17 R3 P1 - Baker Brie	5 / 5
ECOO '21 P1 - Many Messages	3 / 3
ECOO '21 P2 - DNA Derren	3 / 3
ECOO '21 P3 - Quintessential Questions	3 / 3

Problem	Score
GFSS Christmas Challenge P1 - Arithmetic Operators	3 / 3
GFSS Christmas Challenge P2 - Height Inspection	3 / 3
GFSSOC '17 J1 - Ramen and Studying	3 / 3
GFSSOC '17 J2 - Admission Average	3 / 3
GFSSOC '14 Winter J1 - Flying Plushies	3 / 3
GFSSOC '14 Winter J2 - Wow much parking lot	3 / 3
GFSSOC '14 Winter J3 - Waiting	3 / 3
GFSSOC '14 Winter S2 - Speech	5 / 5
GFSSOC '15 Fall J1 - CodeFights	3 / 3
GFSSOC '15 Fall J2 - Fizz Fuzz	5 / 5
GFSSOC '15 Fall J3 - Equation Solver	5 / 5
GFSSOC '15 Fall J4 - Marathon	7 / 7
GFSSOC '15 Winter J1 - Festive Fardin	3 / 3
GFSSOC '15 Winter J2 - Purchasing Presents	3 / 3
GFSSOC '15 Winter J5 - Secret Santa	7 / 7
GFSSOC '15 Winter S1 - OR-deal	5 / 5
GFSSOC '15 Winter S3 - PalinDrone	7 / 7

Problem	Score
ACM U of T Tryouts C0 A - Max Flow	3 / 3
ACM U of T Tryouts C0 B - Interleaving Leaves	5 / 5
ACM U of T Tryouts C1 A - Rock Paper Scissors Fox	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
Greater New York Regional 2012 - Mystery	5 / 5
ICPC NWERC 2011 C - Movie Collection	10 / 10
ICPC PACNW 2016 A - Alphabet	7 / 7
ICPC SWERC 2017 A - Cakey McCakeFace	5 / 5
UCRPC F21 A - Senseless Census	5 / 5
UCRPC F21 B - Lost in the Shuffle	3 / 3

Problem	Score
IOI '06 P1 - Deciphering the Mayan Writing	7 / 7
IOI '09 P4 - Raisins	10 / 10
IOI '13 P2 - Art Class (Standard I/O)	19.200 / 20
IOI '14 Practice Task 1 - Square	10 / 10
IOI '94 P1 - The Triangle	7 / 7

Problem	Score
Mock CCC '20 Contest 1 J1 - A Rage Tree Problem	3 / 3
Mock CCC '20 Contest 1 J2 - A Simplex Problem	3 / 3
Mock CCC '20 Contest 1 J3 - A Geometry Problem	3 / 3
Mock CCC '20 S1 - War	3 / 3
Mock CCC '20 Contest 2 S1 - Arithmetic Hybercube	3 / 3
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 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 '24 Contest 1 J1 - Lemon Bathtub	3 / 3
Mock CCC '14 J1 - Love Overdose	3 / 3
Mock CCC '14 S3 - Spreadsheet Sorting	7 / 7
Mock CCC '15 J1 - 416	3 / 3
Mock CCC '15 J2 - Lowest Exam Mark	5 / 5
Mock CCC '15 J3 - Problem-setting Pandemonium	3 / 3
Mock CCC '15 S2 - Problem-setting Pandemonium	5 / 5
Mock CCC '23 1 S1 - Composite Fibonacci Numbers	5 / 5
Mock CCC '23 2 S1 - Composite Fibonacci Numbers	3 / 3
Mock CCC '18 Contest 1 J1 - A String Problem	3 / 3
Mock CCC '18 Contest 1 J2 - A Substring Problem	3 / 3
Mock CCC '18 Contest 2 J1 - An Arithmetic Problem	3 / 3
Mock CCC '18 Contest 2 J2 - A Software Engineering Task	3 / 3
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 3 J4/S2 - A Median Problem	5 / 5
Mock CCC '18 Contest 5 J1 - Looking for the CCC	3 / 3
Mock CCC '19 Contest 1 J1 - Pusheen's Report Card	3 / 3
Mock CCC '19 Contest 1 J2 - Pusheen OCR	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 J3 - Tudor Buys Some Tea	3 / 3
Mock CCC '19 Contest 2 J4 - Tudor Buys Some Cheesecake	3 / 3
Mock CCC '19 Contest 2 S1 - Tudor's Double Doors	3 / 3
Mock CCC '21 S2 - Colorful Strings	7 / 7
Mock CCC '22 1 S3 - IU	7 / 7

Problem	Score
CCO Preparation Test 5 P2 - Corporative Network	15 / 15
Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem	10 / 10

Problem	Score
MWC '15 #2 P2: Towering Towers	10 / 10
MWC '15 #5 P3: French Words	5 / 5
MWC '15 #8 P1: Push-up Contest	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 1 P2 - That Circle	3 / 3
SAC '22 Code Challenge 2 P1 - Calendar Management	5 / 5
SAC '22 Code Challenge 2 P2 - Cookie Sprinkler	5 / 5
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 P2 - Unicycle License	5 / 5
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 P1 - Obligatory Car Problem	3 / 3
SAC '22 Code Challenge 4 P3 - Obligatory Math Problem	5 / 5
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 Junior P3 - Media List	5 / 5
SAC '22 Code Challenge 5 P1 - Querying Plants	3 / 3
SAC '22 Code Challenge 5 P2 - Querying Extensions	5 / 5

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back To School '16: Dodgeball	7 / 7
Back To School '17: Avalon	5 / 5
CCCJQR P3	7 / 7
Halloween '14 P1 - Rabbit Girls	3 / 3
Max's Anger Contest Series 1 P1 - Hunger Bar	3 / 3
Max's Anger Contest Series 1 P2 - Wesley's Anger Contest 7 P1 - Enraged	5 / 5
Max's Anger Contest Series 2 P1 - Directed Anger	3 / 3
Max's Anger Contest Series 2 P2 - Password Anger	5 / 5
Triway Cup '18 Summer B - Beautiful Water Pearl	7 / 7
Triway Cup '19 Summer I - An Easy Problem	5 / 5
Triway Cup '19 Summer Junior P1 - Getting Snappy	5 / 5
Triway Cup '19 Summer Junior P2 - Thanos Knows the Most	5 / 5
Valentine's Day '15 P2 - Simon and Marcy	7 / 7
WOSS Dual Olympiad 2021 J1: Water Classification	3 / 3
WOSS Dual Olympiad 2021 J2/S1: Secret Formula	3 / 3
WOSS Dual Olympiad 2022 J1: Holiday Gifting	3 / 3
WOSS Dual Olympiad 2022 J3/S1: Christmas List	5 / 5
WOSS Dual Olympiad 2022 S2: Festive Card Game	7 / 7
WOSS Dual Olympiad 2022 Team Round P1: Bobby and His Calculus Test	3 / 3
WOSS Dual Olympiad 2022 Team Round P2: Bobby's Studying Schedule	5 / 5
New Year's '15 P3 - Gift Wrap	5 / 5
New Year's '16 P3 - Arithmetic Snowman	5 / 5

Problem	Score
Summer Institute '17 Contest 1 P10 - Trading Cards	3 / 3
Summer Institute '17 Contest 1 P7 - Grand Theft Otto	7 / 7
Summer Institute '17 Contest 1 P9 - Safe Square	7 / 7

Problem	Score
TLE '15 P1 - Power Rankings	5 / 5
TLE '16 Contest 6 (Mock CCC) J1 - Paper Printing	3 / 3
TLE '16 Contest 6 (Mock CCC) S1 - Writing the CCC	5 / 5
TLE '17 Contest 2 P2 - Unlucky Numbers	5 / 5

Problem	Score
16 BIT S/W ONLY	3 / 3
Mispelling	3 / 3
Mirrored Pairs	3 / 3
A20 Gate	5 / 5
Appleby Contest '19 P3 - A Recursion Problem	5 / 5
Appleby Contest '20 P1 - Terrific Triangles	3 / 3
ACSL '09 Practice P4 - Rank	7 / 7
Arcadia Computing Contest 1 P1 - Test Anxiety	3 / 3
Arcadia Computing Contest 2 P1 - Rejected	3 / 3
Alphabet Score	3 / 3
Amplitude Hackathon '23 Practice Problem 1 - Gigatron EPS Modulo 998244353	3 / 3
Amplitude Hackathon '23 Practice Problem 2 - Go Amplitude!	5 / 5
Amplitude Hackathon '23 Practice Problem 3 - Demo Day Demos	5 / 5
Amplitude Hackathon '23 Practice Problem 4 - Gigatron Autoscaling	3 / 3
Amplitude Hackathon Summer '24 Problem 1 - Is Jeffrey in the Office?	3 / 3
Amplitude Hackathon Summer '24 Problem 2 - Feature Requests	3 / 3
Amplitude Hackathon Summer '24 Problem 3 - Mike's Unlocked Laptop	5 / 5
Amplitude Hackathon Summer '24 Problem 4 - Spenser's Big Announcement	5 / 5
Amplitude Hackathon Summer '24 Practice Problem 1 - Jeffrey's Favorite Integer	3 / 3
Amplitude Hackathon Winter '24 Problem 1 - Twila's Walk	3 / 3
Amplitude Hackathon Winter '24 Problem 2 - Fog Machine	3 / 3
Amplitude Hackathon Winter '24 Problem 3 - Killer Queen	5 / 5
Amplitude Hackathon Winter '24 Problem 4 - Dance Dance Revolution	5 / 5
Amplitude Hackathon Winter '24 Problem 5 - WhenTaken (Year)	5 / 5
Amplitude Hackathon Winter '24 Problem 6 - WhenTaken (Location)	10 / 10
Amplitude Hackathon Summer '25 Problem 1 - AI (Easy)	3 / 3
Amplitude Hackathon Summer '25 Problem 2 - AI (Also Easy)	3 / 3
Amplitude Hackathon Summer '25 Problem 3 - Jenny the Beli Influencer	5 / 5
Troubling Times	5 / 5
A Plus B	3 / 3
PEG Test '14 - Earth	3 / 3
PEG Test '14 - Water	3 / 3
Palindromic Integer Partition	5 / 5
List Minimum	3 / 3
List Minimum (Easy)	3 / 3
List Minimum (Hard)	5 / 5
Lexicographically Least Substring	5 / 5
Bob Hates Triangles	7 / 7
Bob's Rocks	5 / 5
Bob's Temple	5 / 5
Boolean	3 / 3
BPC 1 J1 - Facial Recognition	3 / 3
BPC 1 J2 - Cake	3 / 3
BPC 1 J3 - Group Project	5 / 5
Brap Lesh Mafia	5 / 5
BSSPC '21 J1 - Eggy's New Clothes	3 / 3
BSSPC '21 J3 - Magic Paint Gun Cartridges	5 / 5
BSSPC '22 P1 - Bubble Tea Tracker	3 / 3
BSSPC '22 P2 - Rhyming Numbers	3 / 3
BSSPC '22 P4 - Exec Pieing	5 / 5
Coin Change	7 / 7
Cheerio Contest 1 J1 - Pronounceable Words	3 / 3
Cheerio Contest 1 J2 - Phys Ed Class	3 / 3
Cheerio Contest 1 J3 - Festival	5 / 5
Cheerio Contest 1 S1/J4 - Going to School	5 / 5
Cheerio Contest 2 P2 - Cereal Boxes	3 / 3
Chocolate Bar	5 / 5
Chores	7 / 7
3n+1	3 / 3
CPC '19 Contest 1 P0 - Shoes	3 / 3
CPC '19 Contest 1 P1 - Distance	3 / 3
CPC '19 Contest 1 P2 - Luggage	7 / 7
CPC '21 Contest 1 P0 - AQT and Alphabet	3 / 3
Dr. Anne Anderson Coding Contest 1 P1 - Due Dates	3 / 3
Double Doors Regional P1 - Tudor Gets a Goat	3 / 3
German Nouns	5 / 5
A Game	10 / 10
Longest Increasing Subsequence	7 / 7
Counting Subsequences	10 / 10
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 E - Knapsack 2	7 / 7
Educational DP Contest AtCoder F - LCS	7 / 7
Educational DP Contest AtCoder G - Longest Path	10 / 10
Educational DP Contest AtCoder H - Grid 1	7 / 7
Educational DP Contest AtCoder I - Coins	10 / 10
Educational DP Contest AtCoder K - Stones	10 / 10
Educational DP Contest AtCoder L - Deque	10 / 10
Educational DP Contest AtCoder O - Matching	12 / 12
Educational DP Contest AtCoder R - Walk	15 / 15
Fast Bit Counting	3 / 3
Fibonacci Sequence	15 / 15
Firebending	3 / 3
Flip the Switches	5 / 5
PEG Test '11 - Cyclopian Cash	3 / 3
PEG Test '11 - Cyclopian Puzzle	10 / 10
Geography Class	5 / 5
GlobeX Cup '18 J1 - Rounding Errors	3 / 3
GlobeX Cup '19 J1 - Chess Master Winnie	3 / 3
A Greedy Problem	5 / 5
Hardcore Grinding	5 / 5
Hailstone Numbers	3 / 3
Hard Question	5 / 5
Hello, World!	3 / 3
Word Scrambler	5 / 5
Inaho IV	5 / 5
LKP '18 Contest 2 P1 - Food Lines	3 / 3
Love Evenness	5 / 5
MALD Contest 1 P1 - Scratch Cat and DDoS	3 / 3
MMM '14 A - Distinct Prime Factors	7 / 7
Necroposting	5 / 5
Olympic Scoring	3 / 3
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 2 P1 - Chess Pieces	3 / 3
OTHS Coding Competition 2 P2 - Ghoul Investigators	3 / 3
OTHS Coding Competition 2 P3 - Tally Clicker	5 / 5
OTHS Coding Competition 4 P1 - Square Root Decomposition	3 / 3
PIB '20 P1 - Marcus and Head Bonks	3 / 3
Pie	3 / 3
VMSS Pre-Pre-Windsor P7 - Magical Bribery	7 / 7
There's a Hole in the Bucket	7 / 7
Primes	3 / 3
VMSS Pre-Windsor P1 - Java	3 / 3
Richmond Green P2 - LOL	3 / 3
Richmond Green P4 - HEIGHT	7 / 7
RTE '16 J1 - Board Game	3 / 3
Summing A Sequence	7 / 7
Python Infinite Loop	7 / 7
Ternary Search Tree	5 / 5
Trick-or-Treat	5 / 5
TSS Club Fair 2017 Problem A	3 / 3
UACC 1 P3 - Cheeky Checkers	7 / 7
UCC Coding Competition '20 P1 - Snowstorm	3 / 3
UCC Coding Competition '20 P2 - Optimal Skiing	3 / 3
UCC Coding Competition '20 P5 - Public Transport	7 / 7
UCC Coding Competition '21 P1 - Counterfeit Detection	3 / 3
UCC Coding Competition '21 P2 - Emerald Exchange	5 / 5
UCC Coding Competition '21 P3 - Long Pizza	5 / 5
UTS Open '24 P4 - Political Espionage	12 / 12
Valentine's Day '19 J1 - Rainbow Rating	3 / 3
Valentine's Day '19 J2 - Pink!	3 / 3
Valentine's Day '19 J3 - Love!	7 / 7
VPEX P0 - Pizza	3 / 3
VPEX P2 - Darcy Parties	3 / 3
WOSS Dual Olympiad 2023 J1: Minimum Price	3 / 3

Problem	Score
VMSS '15 #2 - Tomb Robbing	7 / 7
VM7WC '15 #1 Bronze - Goon	3 / 3
VM7WC '15 #2 Bronze - Recruits!	3 / 3
VM7WC '16 #2 Bronze - G	5 / 5
VM7WC '16 #2 Silver - GG	5 / 5
VM7WC '16 #3 Bronze - Shahir-in-a-Box	3 / 3
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5
VM7WC '16 #5 Bronze - Jayden Watches Videos	3 / 3
VM7WC '16 #5 Silver - Jayden Eats Chocolate	7 / 7

Problem	Score
Wesley's Anger Contest 6 Problem 1 - Timbit Sales	3 / 3
Wesley's Anger Contest Reject 2 - 🥕suba	3 / 3

Problem	Score
Waterloo 2013 Fall B - Java vs. Scheme Smackdown	7 / 7
Waterloo 2017 Winter A - Vera and Outfits	3 / 3

Problem	Score
WC '01 P3 - Back to the Future	5 / 5
WC '15 Contest 1 J1 - Do You Know Your Woburn Colours?	3 / 3
WC '15 Contest 2 J1 - A New Hope	3 / 3
WC '15 Contest 2 J2 - The Empire Strikes Back	3 / 3
WC '15 Contest 3 J1 - Battle Predictions	3 / 3
WC '15 Contest 4 J1 - Telling Time	3 / 3
WC '15 Finals J1 - Vertical Posting	3 / 3
WC '16 Contest 1 J1 - A Spooky Season	3 / 3
WC '16 Contest 2 J1 - The Perfect Mate	3 / 3
WC '16 Contest 4 J1 - Anyone Can Be Anything	5 / 5
WC '16 Finals J1 - Fencing	5 / 5
WC '17 Contest 1 J1 - Canadian Accent	3 / 3
WC '17 Contest 1 J2 - How's the Weather?	3 / 3
WC '17 Contest 1 J3 - Stanley	3 / 3
WC '17 Contest 2 J1 - The Rings of Power	3 / 3
WC '17 Contest 2 J2 - Breeding an Army	3 / 3
WC '17 Contest 3 J1 - Like, Comment, and Subscribe!	3 / 3
WC '17 Contest 3 J3 - Uncrackable	5 / 5
WC '17 Contest 4 J1 - Fight or Flight	3 / 3
WC '17 Contest 4 J3 - The Infinity Stones	3 / 3
WC '17 Finals J1 - Cownterintelligence	5 / 5
WC '17 Finals S1 - An Interspecific Army	5 / 5
WC '18 Contest 1 J1 - Homework	3 / 3
WC '18 Contest 1 J2 - Making the Cut	3 / 3
WC '18 Contest 1 J3 - Comparing Grades	5 / 5
WC '18 Contest 2 J1 - Alternate Access	3 / 3
WC '18 Contest 2 J2 - This Message will Self-Destruct	3 / 3
WC '18 Contest 2 J3 - Seeing Double	3 / 3
WC '18 Contest 3 J1 - An Honest Day's Work	3 / 3
WC '18 Contest 3 J2 - Net Weight	5 / 5
WC '18 Contest 3 J3 - R	3 / 3
WC '18 Contest 4 J1 - A Fistful of Quarters	3 / 3
WC '18 Finals J1 - Conditional Contracts	5 / 5
WC '95 P4 - Wildcard	10 / 10
WC '99 P3 - The Godfather	5 / 5