CodeChef Logo CodeChef Logo
Courses

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Programming and DSA

Explore courses

Catalogue

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Explore courses
Practice Compete Compiler
Upgrade to Pro
Courses

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Programming and DSA

Explore courses

Catalogue

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Explore courses
Practice Compete Compiler
Home » Anton Lunyov
user profile

Anton Lunyov

  • 7★anton_lunyov
  •   Ukraine
  • Professional
  • Facebook
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 57
2775 (-8)RatingProvisional
Rating i Provisional Rating, click to know more
July Challenge 2014(2014-07-14 15:00:00)
Global Rank:   27
Cheated in:   

Ratings System Update

(2014-07-14 15:00:00)
This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more
How the rating system works?
2775 (+377)RatingProvisional
Rating i Provisional Rating, click to know more
July Challenge 2014(2022-12-20 00:00:00)
Global Rank:   27
Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)
This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more
How the rating system works?

Learning Paths (0)

None

Practice Paths (0)

None

Contests (57)

May 2009 (Contest III)

The powerful sum, Prime words, Best board fill, Healthy dinner party

October 2009 (Contest IX)

Congruent triangles, A puzzle game, Paragraph Formatting, Just a simple sum, Kayaks, Forces in the crystal

November 2009 (Contest X)

SudokuX, Help the DJ, The LCS Problem Revisited, The Best Box

December 2009 (Contest XI)

Park tour, The N Queens Puzzle Revisited, Effective Sets, Palindromic Numbers, Maze of Digits, Plant Location

January 2010 (Contest XII)

Circle of towers, Cell Phone Towers , Lost Primes, Jawbreaker

February 2010 Contest

Sorting device

March 2010 Contest

Treasure Hunting, K-important Strings, The Best Tower, Tri-Hexagonal Puzzle

May 2010 Contest

Nice Quadrangles, Rendezvous

June 2010 Contest

Graph Counting, Pricing Tollbooths, Robot Game, Tidying Posters, Prime Pattern, Squirrel and chestnut

July 2010

Closest Ranking, Happy Days, Maximal crosses, Rearranging Digits, Adding Least Common Multiples, Block Tower

July Cook Off

The Black and White Knights, Head office building, Ripple-Carry Adder

August 2010 Challenge

Genetics, Swarm of Polygons, Exit code, Obstacle Course, Stepping Numbers, Optimizing Production and Sales

August Cook Off

Fetching Cooking Tools, Arranging the Appetizers, Cleaning Up

September 2010 Challenge

Multiples of 3, Brush Fire, Cake Production Line, Bytelandian Shoppers, Trees Again

October 2010 Challenge

Reduce string, Get a Clue, Logging Game, Count palindromes, Integer Combinations Of Vectors

November 2010 Challenge

Randomly Testing Circuits, Bombing, Chefs Bad Day, Balanced Walks

December 2010 Challenge

The Hungry Bear, Odd Binomial Coefficients, Byteknights and Byteknaves, A String Game

The December 2010 Cook-Off

Preparing Dishes, The Morning Commute, Pairing Chefs, Seeding The Pattern

April Long Contest

Gravel, Number Game Revisited, Rectangles Counting

April Cook-Off Challenge

The Grand Cook Off, A Prime Conjecture, Internet Media Types

June Long Contest 2011

Maximal Score Path, Chef Teams

July 2011 Long Contest

A-E Hash Function, Most Popular Friend

August Cook-off 2011

Vote for the Noodle Soup, Open the Dragon Scroll, Rotate the String, Collect the Chocolate Chips

September Long Contest

Haunted Maze, Younger Brother, BIT Magazine, Short

October Long Contest 2011

Dish Distribution, The Great Plain, The Baking Business, Repeated String, Lucky Palin, Sine Partition Function

September Cook-off

Last Digit Sum, Digit Rotation, Hotel Bytelandia

December 2011 Long Contest

Birthday Gift, Robot Movings, Ciel and Eggs

December Cook-Off

Ciel and New Menu, Ciel and Quiz Game, Ciel and A-B Problem, Ciel and Battle Arena

January Cook-Off

Collision in Space, Makx Sum, Remys last tour, Zeta-Nim Game

April Challenge 2012

PDS Number, Lucky Array, Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight

May Challenge 2012

Digits Forest, Killing Gs, Little Elephant and Median, Jewels and Stones, Lucky lucky number, Divisible Pairs, Remember the recipe, Little Elephant and Boxes, A Home for Chef

June Cook-Off 2012

Closing the Tweets, Connecting Soldiers, Golden Trees, Gifts at Olympics, Alien Chefs

September Cook-Off 2012

Pizza Tossing, Prime Permutations, Recipe Reconstruction, Carvans, Coal Scam

October Cook-Off 2012

Buying Sweets, Equalization, Tennis Tournament

November Challenge 2012

Lucky Balance, A Wonderful Chocolate, Delicious Dishes, Candy Collecting Game, Coin Flip, Jam Board, Martial Arts, Many Left, Sridhar Likes Travelling, Arithmetic Progressions

February 2013 Challenge

Little Elephant and Cards, Buy1-Get1, Room Corner, Magic Board, Triangular Queries, Climbing Stairs, Vacation, Observing the Tree, Word Play, Efficient Painting

April Cook-Off 2013

Andrew and the Birthday, Andrew and the Meatballs, Andrew and the Strings, Andrew and the Balls, Andrew and the Meatballs again

May Challenge 2013

Matchsticks, Witua and Math, Tree Counting, Queries on tree again!, Chef Protection Plan, Password Cracking Challenge, Juno Puzzle for May, Name Reduction, Your Name is Mine, Field Trip

May Cook-off 2013

Rook Placement, XOR Sum, Subtraction Game 1, Subtraction Game 2, Sequence Transmission

June Cook-Off 2013

Attic Crossing, Lyra and the Alethiometer, Tywins Tactics, Transfiguring Trees, Party Planning

Lunch Time June 2013

Online Shopping, Number of Factors, Greedy Trip, Tasty Dishes

July Challenge 2013

Across the River, Needles and Pins, Mountain Holidays, Galactik Football, The Probability Of Winning, Furik and Rubik and Sub Array, Chef and Walking on the rectangle , Count K-Primes, Sereja and Sorting, Circle of death

September Challenge 2013

Little Elephant and Exams, Merciless Chef, Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2, Sereja and Snake

October Challenge 2013

Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Sereja and Transformation, CAO Stage-3, Three-Degree-Bounded Maximum Cost Subtree, Yet Another Nice Girl, Edit Distance on Grid, Fibonacci Number, Kamehameha

November Challenge 2013

Chef Game, Superpowers of 2, Yet Another Cute Girl, Sereja and Vectors, Uncle Johny, Square Digit Squares, Missing some chairs

December Challenge 2013

Lucy and the Flowers, Art in Digital Age, Cube Cakes, Chef and Codes, Petya and Sequence, Funny Marbles, Magic Pairs, Reign, Rectangular Queries, Query on a tree VI

December Lunchtime 2013

Perfect Subarrays, Mike and Task Packages, Mike and Matrices , SuperFunction

January Challenge 2014

Magic Trick, Counting The Important Pairs, Sereja and Graph, Counting D-sets, ForbiddenSum, Meteor, Byteland Tours, Bon Appetit, Please like me, Chef and Feedback

January Cook-off 2014

Chef and the Cake I, Subtraction Game, Interrogating Gangsters

February Challenge 2014

Little Elephant and Movies, Draughts, Make It Zero, Make Him Happy, Chef and Favourite Sequence, Graph Challenge, Count on a Treap, Longest Common Pattern, Little Elephant and Subarrays, Colored Array, Make It Zero 2

March Challenge 2014

Sereja and Sorting 2, Team Split, Binary Tournament, Walk, Maximum number, GCD condition, The Street , Little Chef and Numbers, Mike and Stamps, A Story with Strings, Chef and Graph Queries

April Challenge 2014

Final Battle of Chef, Sereja and Permutation, Counting Matrices, Farmer Feb, Cards, bags and coins, Chef and Digits, Divide the Tangerine, Chef and Tree Game, Shortest Path in Binary Trees

May Challenge 2014

Little Elephant and Balloons, Sereja and Game, Compilers and Parsers, Dynamic Trees and Queries, Chef-jumping, Fun with AGp, Sereja and Subsegment Increasings, Chef and Strange Matrix, Stone

June Challenge 2014

Little Elephant and Blocks, Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, DARTS501, Chef and Subarray, Sereja and Arcs, Two Companies, Guessing Game, Forgot Password

July Challenge 2014

Little Elephant and Painting, Garden Game, Chef and Frogs, Sereja and Equality, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner, Lucky Game, Game of Numbers

January Lunchtime 2014

Chef and Shop, Chef and String, Chef and Numbers, Chef and Way

Total Problems Solved: 425

Contributions

Problems Authored (0)

No Contribution

Problems Tested (83)
Contest Problem
JUNE12 CLOSEST
PARPOLY
LUCKY8
LECANDY
HULL
MATCH
CAKEDOOM
COOLNUM
FLY
MARCH12 TOMJERRY
LWS
PARCOS
EVILBOOK
LUCKY2
SHUTTLE
SPOON
CIELQUAK
XOR
COOK12 CHEF_GAM
MISINTER
GARDENSQ
CHIEFETT
FEB12 BBSYSTEM
LUCKY1
RSRECIPE
CYDB
LUCKY5
FINDSEQ
SMVSEVIL
FLYDIST
WCOUNT
MAXCOUNT
COOK16 COLCHAIN
MVCOIN
SUBANAGR
GRAPLANE
BUYING
COOK22 LUCKFILL
LUCKYBAL
LUCKYSWP
LUCKYSTR
LUCKYCOM
JAN13 LEALCO
ANDOOR
DIVPRO
HOB
SALARY
KILOWHAT
CUCUMBER
CVOTE
THREEDIF
MARCH13 LECOINS
ZENCALC
TOTR
LONGART
SUBTREE
APPROX
CHANGE
FIRESC
MINESWPR
OCT12 DRGNBOOL
MAXCOMP
MAXRECT
BMASTER
NEWSCH
MAXCIR
CIELHACK
DIAMOND
COOK29 GRIDGAME
EXGCD
TREEROOT
MUFFINS3
DIRECTI
COOK30 CIELDIST
MANYCHEF
DEFACING
AVDWAST
CIELKARA
COOK32 TAVISUAL
TAPALIN
TABUS
TASTR
TABISHOP
Editorials Contributed (27)
Contest Problem
JAN13 LEALCO
ANDOOR
DIVPRO
HOB
SALARY
KILOWHAT
CUCUMBER
CVOTE
THREEDIF
OCT12 DRGNBOOL
MAXCOMP
MAXRECT
BMASTER
NEWSCH
MAXCIR
CIELHACK
DIAMOND
JULY12 ADDCHAIN
COOK24 CIELRCPT
CIELBALL
CIELMAP
CIELNUM3
APRIL13 CHEFGAME
FAULT
STRQUERY
CYLINDER
INVBINCF
2775
(Div 1)
★★★★★★★
CodeChef Rating (Highest Rating 2793)
  • Inactive Global Rank
  • Inactive Country Rank

Badges

Contest Contender - Gold Badge

Contest Contender - Gold Badge

Received for participating in 50 Contests

Problem Solver - Silver Badge

Problem Solver - Silver Badge

Received for solving 250 Problems

Daily Streak - Bronze Badge

Daily Streak - Bronze Badge

Received for maintaining a streak of 5 days

Recent Activity

Fetching recent activity

Workden, MNR PRIDE, 14, HAL Old Airport Rd, Domlur I Stage, 1st Stage, DOMLUR, Bengaluru, Karnataka 560071 [email protected] +91 95911 47880
Find us online

ROADMAPS

Learn Python
Learn Java
Learn C
Learn C++
Data structures and Algorithms
Competitive Programming
More Roadmaps

CAREER PATHS

React JS Developer
Full stack Developer
SQL for Data Analysis
Frontend Developer
Java Backend Developer
Data Analysis using Python
Python Backend Developer
C++ Developer
Machine Learning using Python

COMPILERS

HTML online compiler
C++ online compiler
C online compiler
Java online compiler
Python online compiler
SQL online compiler
JavaScript online compiler
React online compiler
More compilers

COMPANY

About us
For colleges
Coding Contests
Blogs
Contact us
Privacy Policy
Frequently Asked Questions

© 2025 CodeChef Inc. All rights reserved.

We use cookies to improve your experience and for analytical purposes. Read our Privacy Policy and Terms to know more. You consent to our cookies if you continue to use our website.