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User c

  • About
  • Problems

310 problems solved
Rank by points: #398
Total points: 403

View submissions

Points breakdown

100 / 100
AC | V8JS
DMOPC '16 Contest 2 P6 - Console Simulator 2017
on May 11, 2019, 7:16 p.m.
30pp
weighted 100% (30pp)
6 / 6
AC | V8JS
Hotline
on March 13, 2019, 1:18 p.m.
25pp
weighted 95% (24pp)
100 / 100
AC | C++17
Grid 3
on April 27, 2020, 3:26 a.m.
20pp
weighted 90% (18pp)
15 / 15
AC | C++17
Mock CCC '20 S4 - Valentine's Day Shopping
on Feb. 29, 2020, 2:48 p.m.
20pp
weighted 86% (17pp)
100 / 100
AC | C++17
DMPG '17 G4 - Timeline
on Nov. 3, 2019, 1:18 p.m.
20pp
weighted 81% (16pp)
50 / 50
AC | PY2
Decoding
on June 2, 2019, 12:21 p.m.
20pp
weighted 77% (15pp)
12 / 12
AC | C++14
CCO '10 P3 - Wowow
on May 19, 2019, 4:10 p.m.
20pp
weighted 74% (15pp)
303 / 500
TLE | RUBY2
Matrix Determinant
on March 2, 2020, 1:10 a.m.
18pp
weighted 70% (13pp)
100 / 100
AC | JAVA8
JSB '19 - P4
on Dec. 8, 2019, 2:39 p.m.
17pp
weighted 66% (11pp)
100 / 100
AC | C++14
DMPG '18 S6 - Mimi and Carrots
on Oct. 27, 2019, 8:51 p.m.
17pp
weighted 63% (11pp)
Load more...

Authored problems (14)

Problem Category Points
Data Compression Uncategorized 15p
Please Help Me Uncategorized 15
DMOPC '19 Contest 4 P0 - Yikes DMOPC 3p
Emoji Search Uncategorized 5
Angie and Functions (Hard) Fun Math 30
GlobeX Cup '19 J3 - Codex Uncategorized 5p
Grid 3 Uncategorized 20
JSB '19 - P1 Uncategorized 5
JSB '19 - P2 Uncategorized 7
JSB '19 - P3 Uncategorized 7
JSB '19 - P4 Uncategorized 17
JSB '19 - P5 Uncategorized 15
Valentine's Day '19 J2 - Pink! Uncategorized 3p
Valentine's Day '19 S1 - Voting Uncategorized 5p

ACM-ICPC (47.0 points)

Problem Score
Hotline 25.0 / 25.0
ICPC PACNW 2016 C - Cameras 7.0 / 7.0
ICPC PACNW 2016 L - Windy Path 15.0 / 15.0

CCC (399.6 points)

Problem Score
CCC '00 S2 - Babbling Brooks 7.0 / 7.0
CCC '00 S4 - Golf 10.0 / 10.0
CCC '00 S5 - Sheep and Coyotes 5.0 / 10.0
CCC '01 S1 - Keeping Score 5.0 / 5.0
CCC '02 J2 - AmeriCanadian 3.0 / 3.0
CCC '02 S1 - The Students' Council Breakfast 5.0 / 5.0
CCC '02 S2 - Fraction Action 5.0 / 5.0
CCC '02 S3 - Blindfold 5.0 / 5.0
CCC '03 J2 - Picture Perfect 3.0 / 3.0
CCC '03 S1 - Snakes and Ladders 5.0 / 5.0
CCC '03 S2 - Poetry 5.0 / 5.0
CCC '03 S3 - Floor Plan 10.0 / 10.0
CCC '03 S4 - Substrings 7.5 / 15.0
CCC '04 J4 - Simple Encryption 5.0 / 5.0
CCC '04 S1 - Fix 5.0 / 5.0
CCC '05 J5 - Bananas 10.0 / 10.0
CCC '05 S1 - Snow Calls 5.0 / 5.0
CCC '05 S4 - Pyramid Message Scheme 10.0 / 10.0
CCC '05 S5 - Pinball Ranking 15.0 / 15.0
CCC '06 J4 - It's tough being a teen! 7.0 / 7.0
CCC '07 J2 - I Speak TXTMSG 3.0 / 3.0
CCC '07 J3 - Deal or No Deal Calculator 3.0 / 3.0
CCC '07 J4 - Anagram Checker 5.0 / 5.0
CCC '07 J5 - Keep on Truckin' 7.0 / 7.0
CCC '07 S2 - Boxes 5.0 / 5.0
CCC '08 J2 - Do the Shuffle 3.0 / 3.0
CCC '08 J4 - From Prefix to Postfix 7.0 / 7.0
CCC '08 S1 - It's Cold Here! 5.0 / 5.0
CCC '09 J2 - Old Fishin' Hole 5.0 / 5.0
CCC '09 S2 - Lights Going On and Off 10.0 / 10.0
CCC '09 S4 - Shop and Ship 15.0 / 15.0
CCC '10 J4 - Global Warming 10.0 / 10.0
CCC '10 J5 - Knight Hop 7.0 / 7.0
CCC '10 S1 - Computer Purchase 5.0 / 5.0
CCC '10 S2 - Huffman Encoding 5.0 / 5.0
CCC '11 J5 - Unfriend 7.0 / 7.0
CCC '11 S3 - Alice Through the Looking Glass 10.0 / 10.0
CCC '11 S5 - Switch 3.6 / 12.0
CCC '12 J2 - Sounds fishy! 3.0 / 3.0
CCC '12 J4 - Big Bang Secrets 3.0 / 3.0
CCC '12 S2 - Aromatic Numbers 5.0 / 5.0
CCC '13 J2 - Rotating letters 3.0 / 3.0
CCC '13 S3 - Chances of Winning 12.0 / 12.0
CCC '15 J5 - π-day 4.0 / 10.0
CCC '16 J4 - Arrival Time 5.0 / 5.0
CCC '17 J4 - Favourite Times 5.0 / 5.0
CCC '17 S1 - Sum Game 3.0 / 3.0
CCC '17 S2 - High Tide, Low Tide 5.0 / 5.0
CCC '17 S3 - Nailed It! 7.0 / 7.0
CCC '18 J5 - Choose your own path 7.0 / 7.0
CCC '18 S1 - Voronoi Villages 3.0 / 3.0
CCC '19 J1 - Winning Score 3.0 / 3.0
CCC '19 J2 - Time to Decompress 3.0 / 3.0
CCC '19 J3 - Cold Compress 5.0 / 5.0
CCC '19 J5 - Rule of Three 7.5 / 15.0
CCC '19 S1 - Flipper 3.0 / 3.0
CCC '19 S2 - Pretty Average Primes 5.0 / 5.0
CCC '19 S4 - Tourism 10.0 / 20.0
CCC '20 S2 - Escape Room 7.0 / 7.0
CCC '20 S3 - Searching for Strings 10.0 / 10.0
CCC '96 S3 - Pattern Generator 5.0 / 5.0
CCC '97 S1 - Sentences 5.0 / 5.0
CCC '97 S2 - Nasty Numbers 5.0 / 5.0
CCC '98 S2 - Cross Number Puzzle 5.0 / 5.0
CCCHK '08 J3 - Phone book 5.0 / 5.0
CCCHK '15 J2 - What is the minimum area? 5.0 / 5.0
CCCHK '15 J5 - No friends in the same group. 3.0 / 15.0

CCO (108.3 points)

Problem Score
CCO '03 P5 - Longest Substring 10.0 / 20.0
CCO '10 P3 - Wowow 20.0 / 20.0
CCO '11 P2 - Vampire Tunnels 14.0 / 15.0
CCO '11 P3 - Spies Like Us 7.778 / 10.0
CCO '18 P4 - Gradient Descent 6.0 / 15.0
CCO '96 P1 - Train Swapping 5.0 / 5.0
CCO '96 P5 - All Roads Lead Where? 10.0 / 10.0
CCO '98 P1 - Fibonacci Numbers 10.0 / 10.0
A Cactus Problem 10.5 / 15.0
Mock CCO '18 Contest 1 Problem 6 - A Combining Problem 15.0 / 15.0

CEOI (1.2 points)

Problem Score
CEOI '19 P5 - Magic Tree 1.2 / 20.0

Classics (53.7 points)

Problem Score
Sorting 5.0 / 5.0
Next Prime 5.0 / 5.0
String Finding (Python 3 Version) 1.71 / 15.0
Longest Common Subsequence 7.0 / 7.0
Longest Increasing Subsequence 7.0 / 7.0
Modular Multiplicative Inverse 7.0 / 7.0
Quine 10.0 / 10.0
Unique Elements 4.0 / 4.0
Single Source Shortest Path 7.0 / 7.0

COCI (136.0 points)

Problem Score
COCI '06 Contest 3 #1 Patuljci 5.0 / 5.0
COCI '06 Contest 3 #2 N-puzzle 5.0 / 5.0
COCI '06 Contest 6 #1 Prase 5.0 / 5.0
COCI '06 Contest 6 #3 Maraton 5.0 / 5.0
COCI '07 Contest 2 #3 Prva 7.0 / 7.0
COCI '07 Contest 3 #3 Tajna 5.0 / 5.0
COCI '07 Contest 4 #2 Veci 5.0 / 5.0
COCI '07 Contest 6 #2 Semafori 7.0 / 7.0
COCI '07 Contest 6 #3 Granica 10.0 / 10.0
COCI '08 Contest 1 #1 Skocimis 5.0 / 5.0
COCI '08 Contest 2 #3 Perket 7.0 / 7.0
COCI '08 Contest 3 #1 Pet 5.0 / 5.0
COCI '08 Contest 6 #1 Buka 5.0 / 5.0
COCI '14 Contest 2 #2 Utrka 5.0 / 5.0
COCI '14 Contest 3 #2 Dom 7.0 / 7.0
COCI '14 Contest 4 #1 Cesta 5.0 / 5.0
COCI '14 Contest 5 #1 Funghi 3.0 / 3.0
COCI '15 Contest 2 #1 Marko 5.0 / 5.0
COCI '15 Contest 4 #4 Chewbacca 12.0 / 12.0
COCI '15 Contest 5 #5 OOP 8.0 / 20.0
COCI '16 Contest 1 #1 Tarifa 5.0 / 5.0
COCI '17 Contest 1 #3 Lozinke 5.0 / 5.0
COCI '17 Contest 2 #2 ZigZag 5.0 / 5.0

DMOPC (320.0 points)

Problem Score
DMOPC '13 Contest 1 P4 - AFK 12.0 / 12.0
DMOPC '13 Contest 3 P1 - Sharing is Caring 5.0 / 5.0
DMOPC '13 Contest 3 P2 - Phone Microwave 7.0 / 7.0
DMOPC '13 Contest 3 P3 - Crossing Field 8.0 / 10.0
DMOPC '14 Contest 2 P4 - Deforestation 7.0 / 7.0
DMOPC '14 Contest 3 P4 - Not Enough Testers! 10.0 / 10.0
DMOPC '14 Contest 5 P4 - Sketchley Park 12.0 / 12.0
DMOPC '14 Contest 6 P3 - Brotherly Sequence 5.0 / 5.0
DMOPC '15 Contest 1 P6 - Lelei and Contest 17.0 / 17.0
DMOPC '15 Contest 3 P3 - Dimethylbenzene 7.0 / 7.0
DMOPC '15 Contest 6 P3 - Harvest 7.0 / 7.0
DMOPC '16 Contest 2 P6 - Console Simulator 2017 30.0 / 30.0
DMOPC '16 Contest 4 P1 - Fast Exponents 5.0 / 5.0
DMOPC '16 Contest 4 P2 - Systests 7.0 / 7.0
DMOPC '17 Contest 1 P1 - Fujō Neko 3.0 / 3.0
DMOPC '17 Contest 1 P2 - Sharing Crayons 7.0 / 7.0
DMOPC '17 Contest 4 P2 - A Heavy Light Decomposition Problem 7.0 / 7.0
DMOPC '17 Contest 4 P3 - Third Place 7.0 / 7.0
DMOPC '17 Contest 5 P2 - Mimi and Binary 5.0 / 5.0
DMOPC '17 Contest 5 P3 - Mimi and Primes 10.0 / 10.0
DMOPC '18 Contest 1 P1 - Sorting 5.0 / 5.0
DMOPC '18 Contest 2 P4 - Damage Output 7.0 / 7.0
DMOPC '18 Contest 5 P3 - A Familiar Problem 7.0 / 7.0
DMOPC '18 Contest 6 P1 - DNA or RNA? 3.0 / 3.0
DMOPC '19 Contest 4 P0 - Yikes 3.0 / 3.0
DMOPC '19 Contest 4 P1 - Valid Strings 5.0 / 5.0
DMOPC '19 Contest 7 P3 - Tree Pruning 3.0 / 12.0
DMPG '16 S5 - Pizza Bag 12.0 / 12.0
DMPG '17 B2 - Yoda 3.0 / 3.0
DMPG '17 B6 - Multiply and Surrender 0.7 / 7.0
DMPG '17 G2 - Holy Grail War 7.0 / 20.0
DMPG '17 G4 - Timeline 20.0 / 20.0
DMPG '17 S1 - Molly and Difference 5.0 / 5.0
DMPG '17 S2 - Anime Conventions 7.0 / 7.0
DMPG '18 B1 - Pizza Orders 3.0 / 3.0
DMPG '18 B2 - Mimi and Modulus 3.0 / 3.0
DMPG '18 B3 - Shimpossible 6.3 / 7.0
DMPG '18 B5 - Mimi and Substrings 7.0 / 7.0
DMPG '18 S6 - Mimi and Carrots 17.0 / 17.0
DMPG '19 B3 - Contact 3.0 / 3.0
DMPG '19 B4 - Braille 5.0 / 5.0
DMPG '19 B5 - Triangles 10.0 / 10.0

DWITE (57.0 points)

Problem Score
DWITE '07 R1 #4 - Stacks of Blocks 5.0 / 5.0
DWITE '07 R2 #4 - All Is Balanced 5.0 / 5.0
DWITE '07 R4 #2 - And the winner is... 5.0 / 5.0
DWITE '07 R5 #2 - Number of factors 5.0 / 5.0
DWITE '08 R2 #2 - My favourite digit 3.0 / 3.0
DWITE '09 R1 #2 - Word Scrambler 5.0 / 5.0
DWITE '09 R1 #3 - That Missing Number 5.0 / 5.0
DWITE '09 R2 #4 - Breadth First Not Quite Tree 5.0 / 5.0
DWITE '09 R7 #2 - Sum of Primes 7.0 / 7.0
DWITE '10 R3 #4 - Forest Fires 7.0 / 7.0
DWITE '11 R1 #2 - Penny Game 5.0 / 5.0

ECOO (18.8 points)

Problem Score
ECOO '07 R3 P1 - Sum of Primes 7.0 / 7.0
ECOO '13 R1 P2 - The Luhn Algorithm 5.0 / 5.0
ECOO '16 R1 P3 - Railway Sort 1.1 / 7.0
ECOO '17 R3 P2 - Family Trees 0.7 / 7.0
ECOO '19 R2 P1 - Email 5.0 / 5.0

FHC (20.0 points)

Problem Score
Homework 10.0 / 10.0
Autocomplete 10.0 / 10.0

Fun Math (53.1 points)

Problem Score
A Plus B 3.0 / 3.0
A Times B 7.9 / 20.0
Matrix Determinant 18.2 / 30.0
Fast Factorial Calculator 10.0 / 10.0
The Odd Number 7.0 / 7.0
Prime Factorization 7.0 / 7.0

GFSSOC (32.0 points)

Problem Score
Pursuit of Knowledge 10.0 / 10.0
Hide n Seek 12.0 / 12.0
Nightmare-a-thon 10.0 / 10.0

Mock CCC (112.3 points)

Problem Score
Mock CCC '20 S1 - War 5.0 / 5.0
Mock CCC '20 S2 - Flipper Redux 7.0 / 7.0
Mock CCC '20 S3 - SAM I Am 10.0 / 10.0
Mock CCC '20 S4 - Valentine's Day Shopping 20.0 / 20.0
Mock CCC '20 Contest 2 S2 - 4D BBST on a DP 5.0 / 5.0
Mock CCC '20 Contest 1 J1 - A Rage Tree Problem 3.0 / 3.0
Mock CCC '20 Contest 1 J2 - A Simplex Problem 3.0 / 3.0
Mock CCC '20 Contest 1 J3 - A Geometry Problem 3.0 / 3.0
Mock CCC '20 Contest 1 J4 - A Binary Problem 5.0 / 5.0
Mock CCC '18 Contest 1 J4/S2 - A Square Problem 5.0 / 5.0
Mock CCC '18 Contest 2 J3/S1 - An Array Problem 0.933 / 7.0
Mock CCC '18 Contest 3 J4/S2 - A Median Problem 5.0 / 5.0
Mock CCC '18 Contest 3 S4 - A Graph Problem 10.0 / 10.0
Mock CCC '19 Contest 1 J4 - Pusheen Plays Neko Atsume 3.0 / 3.0
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card 3.0 / 3.0
Mock CCC '19 Contest 1 S2 - Pusheen's Puzzle Present 5.0 / 5.0
Mock CCC '19 Contest 2 J1 - Tudor Drinks Some Tea 3.0 / 3.0
Mock CCC '19 Contest 2 J2 - Tudor Drinks Some More Tea 3.0 / 3.0
Mock CCC '19 Contest 2 J3 - Tudor Buys Some Tea 3.0 / 3.0
Mock CCC '19 Contest 2 J4 - Tudor Buys Some Cheesecake 4.0 / 4.0
Mock CCC '19 Contest 2 J5 - Tudor Drinks Even More Tea 3.333 / 10.0
Mock CCC '19 Contest 2 S1 - Tudor's Double Doors 3.0 / 3.0

MWC (19.1 points)

Problem Score
MWC '15 #1 P2: Postcard 3.0 / 3.0
MWC '15 #1 P5: Love Guru 7.0 / 7.0
MWC '15 #2 P2: Towering Towers 9.1 / 10.0

Olympiads School (12.0 points)

Problem Score
A Sum Problem 12.0 / 12.0

Seasonal (99.0 points)

Problem Score
Another Contest 4 Problem 1 - Identity Crisis 1.0 / 1.0
Another Contest 4 Problem 2 - The Deutsch-Jozsa Algorithm 1.0 / 1.0
Another Contest 4 Problem 3 - An Isosceles Right Triangle 1.0 / 1.0
Back From Summer '17 P2: Crayola Lightsaber 7.0 / 7.0
Back to School '16: Paradox 5.0 / 5.0
Back to School '16: Cherry Tree 12.0 / 12.0
Back To School '17: Wet Mud 10.0 / 10.0
Back To School '18: Letter Frequency 5.0 / 5.0
CCCJQR P5 1.0 / 25.0
Miracle Sort 3.0 / 3.0
MNYC '17: Hurontario 10.0 / 10.0
Piggy 7.0 / 7.0
Sword Art Online Judge 2 10.0 / 10.0
Scroll 1.0 / 1.0
Forget Me Not 4.0 / 4.0
Too Simple 7.0 / 7.0
Is it a Tree? 7.0 / 7.0
Arithmetic Snowman 7.0 / 7.0

TLE (29.5 points)

Problem Score
TLE '15 P1 - Power Rankings 5.0 / 5.0
TLE '16 Contest 4 P1 - Stack of Presents 5.0 / 5.0
TLE '16 Contest 6 (Mock CCC) S1 - Writing the CCC 5.0 / 5.0
TLE '17 Contest 1 P2 - Willson and Food 1.5 / 5.0
TLE '17 Contest 4 P2 - Microwave Buttons 5.0 / 5.0
TLE '17 Contest 7 P1 - Stargazing 3.0 / 3.0
TLE '17 Contest 8 P2 - Ship Defense 5.0 / 5.0

TSOC (7.0 points)

Problem Score
Alex and Animal Rights 7.0 / 7.0

Uncategorized (422.0 points)

Problem Score
Appleby Contest '19 P5 - Matrix Operation 0.5 / 10.0
Another Contest 4 Problem 0 - The April Fools Warmup Problem 1.0 / 1.0
Another Sorting 5.0 / 5.0
Palindromic Integer Partition 5.0 / 5.0
List Minimum 4.0 / 4.0
List Minimum (Easy) 3.0 / 3.0
List Minimum (Hard) 5.0 / 5.0
Lexicographically Least Substring 5.0 / 5.0
Lexicographically Least Substring (Hard) 15.0 / 15.0
String Finding 5.0 / 5.0
Boolean 4.0 / 4.0
Champion Contest 7.0 / 7.0
CPC '19 Contest 1 P0 - Shoes 3.0 / 3.0
CPC '19 Contest 1 P1 - Distance 3.0 / 3.0
CPC '19 Contest 1 P2 - Luggage 7.0 / 7.0
Please Help Me 15.0 / 15.0
Knapsack 1 0.519 / 7.0
LCS 7.0 / 7.0
Emoji Search 5.0 / 5.0
Fast Bit Counting 10.0 / 10.0
GlobeX Cup '18 J4 - Magical Functions 7.0 / 7.0
GlobeX Cup '19 J3 - Codex 5.0 / 5.0
GlobeX Cup '19 S2 - Predicting Collisions 2.1 / 7.0
A Greedy Problem 5.0 / 5.0
Grid 3 20.0 / 20.0
Hardcore Grinding 5.0 / 5.0
Hailstone Numbers 3.0 / 3.0
Hello, World! 1.0 / 1.0
Hello, World! (Hard) 1.0 / 1.0
Word Scrambler 7.0 / 7.0
Count The Triplets 7.0 / 7.0
A Permutation Problem 2 12.0 / 12.0
JSB '19 - P1 5.0 / 5.0
JSB '19 - P2 7.0 / 7.0
JSB '19 - P3 7.0 / 7.0
JSB '19 - P4 17.0 / 17.0
JSB '19 - P5 15.0 / 15.0
Largest Permutation 10.0 / 10.0
Guess the Sequence 3.0 / 3.0
Multiplication Improvement 5.0 / 5.0
Miniature Sudoku 7.0 / 7.0
Mynerva 2.0 / 7.0
One Small Favour 0.49 / 10.0
Another Small Favour 15.0 / 15.0
PIB '20 P1 - Marcus and Head Bonks 3.0 / 3.0
PIB '20 P2 - 2 + 2 = 5 5.0 / 5.0
InterNAV 7.0 / 7.0
Primes 2 3.75 / 15.0
Java 3.0 / 3.0
Going Back to the Definitions 7.0 / 7.0
Self-deception 15.0 / 15.0
Disclosure 10.0 / 10.0
Decoding 20.0 / 20.0
Battle Positions 7.0 / 7.0
Summing A Sequence 7.0 / 7.0
Python Infinite Loop 7.0 / 7.0
A Simple Game 7.0 / 7.0
Bubble Sort 7.0 / 7.0
TSS Club Fair 2017 Problem A 4.0 / 4.0
TSS Club Fair 2017 Problem B 7.0 / 7.0
UTS Open '15 #3 - Pogo 1.25 / 25.0
UTS Open '18 P3 - Restaurants 7.0 / 7.0
Valentine's Day '19 J1 - Rainbow Rating 3.0 / 3.0
Valentine's Day '19 J2 - Pink! 3.0 / 3.0
Valentine's Day '19 J3 - Love! 0.7 / 7.0
Valentine's Day '19 S1 - Voting 5.0 / 5.0
Valentine's Day '19 S2 - Ctudor's Cute Cacti 0.7 / 7.0
Wesley's Anger Contest 2 Problem 1 - OCT 31 = DEC 25? 3.0 / 3.0

VM7WC (44.0 points)

Problem Score
VMSS '15 #2 - Tomb Robbing 7.0 / 7.0
VM7WC '15 #1 Silver - Jung Goon 5.0 / 5.0
VM7WC '15 #3 Silver - Test Scores 5.0 / 5.0
VM7WC '16 #3 Silver - Can Shahir even get there?! 5.0 / 5.0
VM7WC '16 #4 Silver - Tests or Test Cases? 5.0 / 5.0
VM7WC '16 #4 Gold - Restoring Reputation 10.0 / 10.0
VM7WC '16 #5 Gold - Jayden Studies Trees 7.0 / 7.0

Woburn Challenge (2.2 points)

Problem Score
WC '18 Contest 1 S1 - Inspiration 2.154 / 7.0

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