• OlympiadsOJ
  • Home
  • Problems
  • Submissions
  • Users
  • Contests
  • About
    >
    • Status
    • Tips
    • API
    • Github
Log in  or  Sign up

User Ze

  • About
  • Problems

159 problems solved
Rank by points: #2328
Total points: 239

View submissions

Points breakdown

100 / 100
AC | C++20
IOI '14 P3 - Game
on Jan. 23, 2025, 8:53 p.m.
20pp
weighted 100% (20pp)
100 / 100
AC | C++20
DMOPC '21 Contest 10 P5 - Number Theory
on Jan. 23, 2025, 8:49 p.m.
20pp
weighted 95% (19pp)
100 / 100
AC | C++20
Checkerboard Summation (Easy)
on Jan. 23, 2025, 8:56 p.m.
12pp
weighted 90% (11pp)
16 / 16
AC | C++20
CCC '19 S3 - Arithmetic Square
on Sept. 19, 2024, 5:36 a.m.
12pp
weighted 86% (10pp)
935 / 935
AC | C++20
A Plus B (Hard)
on Sept. 19, 2024, 12:33 a.m.
12pp
weighted 81% (9.8pp)
30 / 30
AC | C++20
CCC '15 S3 - Gates
on Aug. 20, 2022, 7:14 p.m.
10pp
weighted 77% (7.7pp)
100 / 100
AC | C++20
PEG Test '11 - Cyclopian Puzzle
on July 15, 2022, 9:17 p.m.
10pp
weighted 74% (7.4pp)
100 / 100
AC | PY3
Quine
on June 25, 2022, 8:41 p.m.
10pp
weighted 70% (7.0pp)
50 / 50
AC | C++20
ACSL '09 Practice P3 - Zeroes
on June 4, 2022, 9:17 p.m.
10pp
weighted 66% (6.6pp)
100 / 100
AC | C++20
Facebook Hacker Cup '15 Round 1 P1 - Homework
on May 4, 2022, 10:10 p.m.
10pp
weighted 63% (6.3pp)
Load more...

AAC (12 points)

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 5 P1 - Bamboo Cookies 3 / 3

CCC (323.479 points)

Problem Score
CCC '00 S1 - Slot Machines 5 / 5
CCC '00 S4 - Golf 7 / 7
CCC '01 J1 - Dressing Up 3 / 3
CCC '01 J2 - Mod Inverse 3 / 3
CCC '02 S2 - Fraction Action 5 / 5
CCC '03 S1 - Snakes and Ladders 5 / 5
CCC '04 J1 - Squares 3 / 3
CCC '04 J2 - Terms of Office 3 / 3
CCC '04 J3 - Smile with Similes 3 / 3
CCC '05 J1 - The Cell Sell 2.200 / 3
CCC '05 J2 - RSA Numbers 3 / 3
CCC '05 J3 - Returning Home 5 / 5
CCC '05 J5 - Bananas 5 / 10
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 J4 - It's tough being a teen! 2.100 / 7
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 2.200 / 3
CCC '07 S3 - Friends 7 / 7
CCC '08 J1 - Body Mass Index 3 / 3
CCC '08 S1 - It's Cold Here! 2.500 / 5
CCC '09 J1 - ISBN 3 / 3
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 '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 S1 - English or French? 5 / 5
CCC '11 S2 - Multiple Choice 3 / 3
CCC '12 J1 - Speed fines are not fine! 2.812 / 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 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 '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 '15 J1 - Special Day 3 / 3
CCC '15 J2 - Happy or Sad 3 / 3
CCC '15 S1 - Zero That Out 3 / 3
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 S2 - Tandem Bicycle 5 / 5
CCC '17 J1 - Quadrant Selection 3 / 3
CCC '17 J2 - Shifty Sum 3 / 3
CCC '17 S1 - Sum Game 3 / 3
CCC '17 S2 - High Tide, Low Tide 5 / 5
CCC '18 J1 - Telemarketer or not? 3 / 3
CCC '18 J2 - Occupy parking 3 / 3
CCC '19 J1 - Winning Score 3 / 3
CCC '19 J2 - Time to Decompress 3 / 3
CCC '19 S1 - Flipper 3 / 3
CCC '19 S2 - Pretty Average Primes 5 / 5
CCC '19 S3 - Arithmetic Square 12 / 12
CCC '20 J1 - Dog Treats 3 / 3
CCC '20 J4 - Cyclic Shifts 5 / 5
CCC '21 J3 - Secret Instructions 5 / 5
CCC '21 J4 - Arranging Books 3.267 / 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 2.700 / 5
CCC '96 S1 - Deficient, Perfect, and Abundant 5 / 5
CCC '96 S5 - Maximum Distance 0.700 / 7

CCO (5 points)

Problem Score
CCO '03 P4 - Constrained Permutations 5 / 5

Classics (28 points)

Problem Score
Sorting 3 / 3
Next Prime 5 / 5
Longest Common Subsequence 7 / 7
Quine 10 / 10
Unique Elements 3 / 3

COCI (22 points)

Problem Score
COCI '06 Contest 2 #4 Sjecišta 7 / 7
COCI '07 Contest 6 #2 Semafori 7 / 7
COCI '09 Contest 1 #2 Domino 5 / 5
COCI '12 Contest 6 #1 Baka 3 / 3

DMOPC (75.400 points)

Problem Score
DMOPC '14 Contest 1 P1 - Median Mark 5 / 5
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 2 P6 - Selective Cutting 3.600 / 12
DMOPC '14 Contest 3 P1 - Not Enough Users! 3 / 3
DMOPC '14 Contest 5 P1 - Core Drill 3 / 3
DMOPC '17 Contest 5 P3 - Mimi and Primes 7 / 7
DMOPC '18 Contest 5 P3 - A Familiar Problem 7 / 7
DMOPC '19 Contest 6 P2 - Grade 10 Math 7 / 7
DMOPC '21 Contest 10 P5 - Number Theory 20 / 20
DMOPC '21 Contest 5 P1 - Permutations & Primes 1.500 / 5
DMOPC '21 Contest 5 P6 - Permutations & Primes 1.200 / 25
DMOPC '21 Contest 8 P1 - Peanut Planning 2.100 / 7

DWITE (22 points)

Problem Score
DWITE '07 R5 #2 - Number of factors 5 / 5
DWITE '08 R1 #4 - What is this Roman Numeral 7 / 7
DWITE '08 R3 #2 - Wordcount++ 5 / 5
DWITE '09 R3 #2 - Rounding to Fibonacci 5 / 5

ECOO (0.500 points)

Problem Score
ECOO '15 R1 P1 - When You Eat Your Smarties 0.500 / 5

FHC (10 points)

Problem Score
Facebook Hacker Cup '15 Round 1 P1 - Homework 10 / 10

GFSSOC (11 points)

Problem Score
GFSS Christmas Challenge P1 - Arithmetic Operators 3 / 3
GFSS Christmas Challenge P2 - Height Inspection 3 / 3
GFSSOC '15 Fall J3 - Equation Solver 5 / 5

ICPC (5 points)

Problem Score
ACM U of T Tryouts C0 B - Interleaving Leaves 5 / 5

IOI (20 points)

Problem Score
IOI '14 P3 - Game 20 / 20

Mock CCC (17 points)

Problem Score
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

SAC Coding Challenge (10 points)

Problem Score
SAC '22 Code Challenge 3 P2 - Unicycle License 5 / 5
SAC '22 Code Challenge 5 P2 - Querying Extensions 5 / 5

Seasonal (21 points)

Problem Score
Back From Summer '17 P2: Crayola Lightsaber 7 / 7
Back To School '18: Letter Frequency 7 / 7
Too Simple 7 / 7

SIUCF (7 points)

Problem Score
Summer Institute '17 Contest 1 P7 - Grand Theft Otto 7 / 7

Uncategorized (191 points)

Problem Score
16 BIT S/W ONLY 3 / 3
Mispelling 3 / 3
Mirrored Pairs 3 / 3
Triple Fat Ladies 5 / 5
Appleby Contest '19 P2 - The Love Letter 5 / 5
Appleby Contest '20 P3 - Ridiculous String 4 / 10
ACSL '09 Practice P3 - Zeroes 10 / 10
Troubling Times 5 / 5
A Plus B 3 / 3
A Plus B (Hard) 12 / 12
List Minimum 3 / 3
List Minimum (Hard) 5 / 5
Lexicographically Least Substring 5 / 5
Bob's Rocks 5 / 5
Boolean 3 / 3
Coin Change 7 / 7
Checkerboard Summation (Easy) 12 / 12
CPC '19 Contest 1 P2 - Luggage 7 / 7
Encode 5 / 5
Fast Factorial Calculator 7 / 7
Fibonacci Sequence 4.500 / 15
PEG Test '11 - Cyclopian Puzzle 10 / 10
Troubling Triangles 7 / 7
Hello, World! 3 / 3
Infinity 3 / 3
MMM '14 A - Distinct Prime Factors 7 / 7
Prime Factorization 5 / 5
Primes 3 / 3
Primes 3 1.500 / 15
Better Censor 7 / 7
The Cosmic Era P3 - Battle Positions 7 / 7
Summing A Sequence 7 / 7
Python Infinite Loop 7 / 7
Bubble Sort 7 / 7

VM7WC (10 points)

Problem Score
VM7WC '16 #2 Bronze - G 5 / 5
VM7WC '16 #3 Silver - Can Shahir even get there?! 5 / 5

Woburn Challenge (12 points)

Problem Score
WC '17 Finals S1 - An Interspecific Army 5 / 5
WC '18 Contest 1 S2 - Essay Generator 7 / 7

fork us on Github | like us on Facebook | help us translate | terms of service |