User rocket

Points breakdown

200 / 200

AC | C++17

A Times B

on Jan. 23, 2026, 8:16 a.m.

20pp

weighted 100% (20pp)

140 / 140

AC | PY3

Prime Bag

on Jan. 16, 2026, 9:06 a.m.

20pp

weighted 95% (19pp)

210 / 210

AC | PY3

Next Prime (Hard)

on Jan. 25, 2026, 10:43 p.m.

15pp

weighted 90% (14pp)

9 / 10

TLE | PY3

CCC '20 J4 - Cyclic Shifts (Hard)

on Jan. 13, 2026, 12:24 a.m.

11pp

weighted 86% (9.3pp)

15 / 15

AC | PYPY3

CCC '09 S3 - Degrees Of Separation

on Feb. 10, 2026, 9:24 a.m.

10pp

weighted 81% (8.1pp)

10 / 10

AC | PY3

XOR Sum

on Feb. 9, 2026, 4:03 a.m.

10pp

weighted 77% (7.7pp)

15 / 15

AC | PY3

CCC '23 J5 - CCC Word Hunt

on Feb. 9, 2026, 12:30 a.m.

10pp

weighted 74% (7.4pp)

100 / 100

AC | PY3

DMOPC '15 Contest 4 P4 - Great Sequence

on Feb. 8, 2026, 9:01 a.m.

10pp

weighted 70% (7.0pp)

15 / 15

AC | PY3

CCC '13 S3 - Chances of Winning

on Feb. 6, 2026, 1:15 a.m.

10pp

weighted 66% (6.6pp)

90 / 90

AC | PY3

Rolling Encryption

on Feb. 4, 2026, 9:20 a.m.

10pp

weighted 63% (6.3pp)

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 3 P3 - Monkey Market	7 / 7

Problem	Score
BlueBook - Days	3 / 3
BlueBook - Calculator	7 / 7

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 '01 J1 - Dressing Up	3 / 3
CCC '01 J2 - Mod Inverse	3 / 3
CCC '01 S1 - Keeping Score	5 / 5
CCC '01 S2 - Spirals	2 / 5
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '02 J1 - 0123456789	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 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 J2 - Terms of Office	3 / 3
CCC '04 J3 - Smile with Similes	3 / 3
CCC '04 J4 - Simple Encryption	5 / 5
CCC '04 S1 - Fix	5 / 5
CCC '04 S2 - TopYodeller	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 J4 - Cross Spiral	7 / 7
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 J5 - CCC Othello	10 / 10
CCC '06 S1 - Maternity	5 / 5
CCC '06 S2 - Attack of the CipherTexts	5 / 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 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 '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 '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 '09 S3 - Degrees Of Separation	10 / 10
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 '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 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 '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 J4 - Cyclic Shifts (Hard)	10.800 / 12
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 '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 '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 '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 '96 S1 - Deficient, Perfect, and Abundant	5 / 5
CCC '96 S2 - Divisibility by 11	7 / 7
CCC '97 S1 - Sentences	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 J3 - Phone book	5 / 5
CCCHK '15 S1 - Finding number of pairs	7 / 7
CCCHK '15 S2 - Matching Problem	10 / 10

Problem	Score
Sorting	3 / 3
Next Prime	5 / 5
Next Prime (Hard)	15 / 15

Problem	Score
COCI '08 Contest 1 #2 Ptice	5 / 5
COCI '08 Contest 4 #2 Datum	3 / 3

User rocket

Points breakdown

AAC (21 points)

ACC (3 points)

BlueBook (10 points)

CCC (820.800 points)

China NOI (7 points)

Classics (23 points)

COCI (8 points)

DMOPC (67.727 points)

DWITE (5 points)

ECOO (7 points)

Google Code Jam (7 points)

IOI (14 points)

JOI (5 points)

Mock CCC (26.667 points)

SAC Coding Challenge (6 points)

Seasonal (24.700 points)

TLE (7 points)

Uncategorized (247.400 points)

VM7WC (8 points)

Woburn Challenge (6 points)

Problem	Score
DMOPC '13 Contest 3 P3 - Crossing Field	7 / 7
DMOPC '14 Contest 1 P2 - Tiles	3 / 3
DMOPC '14 Exam Time P1 - French Homework	3 / 3
DMOPC '14 Exam Time P2 - Physics Duel	5 / 5
DMOPC '15 Contest 4 P4 - Great Sequence	10 / 10
DMOPC '15 Contest 6 P2 - Tilt	2.727 / 5
DMOPC '15 Contest 6 P3 - Harvest	7 / 7
DMOPC '15 Contest 7 P2 - Not a Wall of Text	3 / 3
DMOPC '17 Contest 2 P3 - Bad Bunnies	10 / 10
DMOPC '18 Contest 2 P3 - Thanksgiving Feast	10 / 10
DMOPC '18 Contest 5 P3 - A Familiar Problem	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 Contest 1 J4 - A Binary Problem	1.667 / 5
Mock CCC '22 Contest 1 J1 - Square Root Decomposition	3 / 3
Mock CCC '22 Contest 1 J2 - Biking and Hiking	3 / 3
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity	7 / 7
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card	3 / 3

Problem	Score
SAC '22 Code Challenge 1 P1 - That Teacher	3 / 3
SAC '22 Code Challenge 1 P2 - That Circle	3 / 3

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back To School '18: Letter Frequency	0.700 / 7
Max's Anger Contest Series 1 P1 - Hunger Bar	3 / 3
Piggy	7 / 7
Too Simple	7 / 7

Problem	Score
16 BIT S/W ONLY	3 / 3
2spooky4me	7 / 7
Mispelling	3 / 3
Mirrored Pairs	3 / 3
Triple Fat Ladies	5 / 5
AAAA 1 P1 - Even-Odd Sort	7 / 7
AAAA 1 P3 - Topographical Sort	3.600 / 12
Appleby Contest '19 P2 - The Love Letter	5 / 5
Appleby Contest '20 P1 - Terrific Triangles	3 / 3
Arcadia Computing Contest 2 P1 - Rejected	3 / 3
Arcadia Computing Contest 2 P2 - Tennis	5 / 5
Arcadia Computing Contest 2 P3 - Alternato	2.800 / 7
Amplitude Hackathon '23 Practice Problem 2 - Go Amplitude!	5 / 5
Amplitude Hackathon Summer '24 Problem 5 - Lunch Costs	5 / 5
Amplitude Hackathon Winter '25 Problem 1 - One-Letter Variable Names	3 / 3
A Simple Mean	7 / 7
A Times B	20 / 20
PEG Test '14 - Earth	3 / 3
PEG Test '14 - Fire	5 / 5
PEG Test '14 - Water	3 / 3
List Minimum	3 / 3
List Minimum (Easy)	3 / 3
String Finding	5 / 5
Boolean	3 / 3
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 P5 - Guessing Grades	7 / 7
Dilhan's Computing Contest 1 P1 - The Cathedral of Learning	3 / 3
Educational DP Contest AtCoder A - Frog 1	7 / 7
GlobeX Cup '18 J3 - Good Numbers	5 / 5
GlobeX Cup '18 J5 - Errands	10 / 10
Hello, World!	3 / 3
Word Scrambler	5 / 5
OCC '19 S2 - Rimuru's Number Game	5 / 5
OTHS Coding Competition 4 P1 - Square Root Decomposition	3 / 3
Confirmation Bias	10 / 10
Postfix Notation	7 / 7
Prime Bag	20 / 20
Rolling Encryption	10 / 10
Python Infinite Loop	7 / 7
Stacked	7 / 7
Valentine's Day '19 J3 - Love!	7 / 7
XOR Sum	10 / 10

Problem	Score
VM7WC '15 #1 Bronze - Goon	3 / 3
VM7WC '16 #4 Silver - Tests or Test Cases?	5 / 5

Problem	Score
WC '17 Contest 1 J2 - How's the Weather?	3 / 3
WC '17 Contest 2 J2 - Breeding an Army	3 / 3