Yury Pisarchyk
- 7★Ra16bit
Belarus- Professional
- No Active Plan. View Details
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Ratings System Update
(2025-08-20 23:00:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Practice Paths (0)
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Contests (98)
December 2009 (Contest XI)
The N Queens Puzzle Revisited, Palindromic Numbers, Plant Location
May 2010 Contest
Lights Out, Nice Quadrangles, Rendezvous, Summing Slopes
June 2010 Contest
Pricing Tollbooths, Robot Game, Prime Pattern, Squirrel and chestnut
July 2010
Closest Ranking, Maximal crosses
August 2010 Challenge
Obstacle Course, Optimizing Production and Sales
September 2010 Challenge
Multiples of 3, Brush Fire
October 2010 Challenge
Logging Game, Count palindromes, Integer Combinations Of Vectors
November 2010 Challenge
Randomly Testing Circuits, Bombing, Chefs Bad Day
The November CookOff
N Knights Problem, One Dimensional Game of Life, Cutting Recipes
December 2010 Challenge
The Hungry Bear, Byteknights and Byteknaves, A String Game
The December 2010 Cook-Off
Preparing Dishes, The Morning Commute, Pairing Chefs
January 2011 Challenge
Restaurant Expansion, Chess Pushing Game, Flu Shot Lineup, Splitting Giant Subs, Count Relations
The January 2011 Cook-Off
Holes in the text, Chef team, Whole submatrix
February Cook - Off Challenge
Integer Sequences, Breaking Into Atoms, Three Way Communications
March 2011 Challenge
K-Unique Sequence, Squares Game, Omax, The Amazing All-In-One Cooking Machine - Challenge
March Cook-off Challenge
Money Transformation, Palindrome Palindrome, Snake Snaky, Grouping Chefs
April Long Contest
Gravel, Number Game Revisited, Central Point, Rectangles Counting
April Cook-Off Challenge
A Prime Conjecture, Internet Media Types
June Long Contest 2011
Maximal Score Path, Chef Teams, Attack of the Clones, Restock
June Cook-off
Longest Arithmetic Progressions, Correctness of Knight Move, Super-plane
July 2011 Long Contest
A-E Hash Function, Most Popular Friend
July Cook-off 2011
Misinterpretation, Garden Squares, Pleasing Chief
August Long Contest 2011
Infinite Grid Game
September Long Contest
Younger Brother, BIT Magazine
October Long Contest 2011
Dish Distribution, The Great Plain, The Baking Business, Repeated String, Lucky Palin
October Cook-off
Generalized Arithmetic Progression Free Sequence, First non-Palindrome, Chef Travel Routes
November Long Contest 2011
Chefs new Pet, New Restaurant, The Postal Service
November Cook-Off
Colorful Chain, Moving Coins, Subanagrams
December 2011 Long Contest
Birthday Gift, Robot Movings, Ciel and Eggs
December Cook-Off
Ciel and New Menu, Ciel and A-B Problem
January 2012 Challenge
Houses and Restaurants
February 2012 Challenge
Box and Ball System, Lucky Count, Restore the Recipe, Lucky Long, Smart Chef vs Evil Chef, Word Couting, Count of Maximum
March 2012 Challenge
Longest Weird Subsequence, Cosine Partition Function, Lucky Number, Free Shuttle Service, Home Delivery, Spoon in Matrix, Xor it
April Challenge 2012
Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight
June Cook-Off 2012
Closing the Tweets, Connecting Soldiers, Alien Chefs
July Challenge 2012
Chef's Dream, My Fair Coins, Gift Rift, Restaurant Rating
August Challenge 2012
Little Elephant and Bombs, Lucky Driving, Block Game, Range of Data, Delivery Boy, Machine Gun
September Challenge 2012
Racing Horses, Three is Crowd
October Challenge 2012
Little Elephant and Order, Fierce Battles, Event Organizer, The New Scheme, Need More Diamonds
September Cook-Off 2012
Prime Permutations, Recipe Reconstruction, Carvans, Coal Scam
November Cook-Off 2012
Little Elephant and Magic, Little Elephant and Permutations, Little Elephant and Divisors
December Cook-Off 2012
Expected Greatest Common Divisor, Root of the Problem, Packaging Cupcakes, Reversing directions
February Cook-Off 2013
Lack of Logic, Row and Column Operations, Hotel Balifornia 2
March Cook-off 2013
The Ball And Cups, Palindrome, Traveling Plan, Level Of Difference
April Cook-Off 2013
Andrew and the Meatballs, Andrew and the Strings, Andrew and the Meatballs again
May Cook-off 2013
XOR Sum, Subtraction Game 1, Subtraction Game 2, Sequence Transmission
October Cook-Off 2013
Polo the Penguin and the Lucky String, Polo the Penguin and the Numbers, Polo the Penguin and the Test, Polo the Penguin and the XOR, Polo the Penguin and the Tree
July Cook-Off 2014
Copy-Paste, Present for Andrii, Sum Queries, Tree Again, Friends
August Cook-Off 2014
Tree Game, Permutation Shuffle, Shooting, Count Digits
September Cook-Off 2014, ACM-ICPC Warm up
Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2, Updating Edges on Trees
November Cook-Off 2014
Lost Graph, Most Distant Points, Brackets, Petersen Graph
December Cook-Off 2014
Servers, Jam, Matrix Again, Player, Good Joke!
November Challenge 2014
Chef and Segment Game, Chef and Words, Fombinatorial, Sereja and Order, Sereja and Permutations, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome, Chef and Churu, The Spelling Problem
January Cook-Off 2015
Suraj goes shopping, Tojo hates probabilities, Anup at Amrithapuri, Random Rudreshwar, Abhijeet and rectangles
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum, Path containing K Nodes, Adding Special Sum
September Mega Cook-Off 2015
Reign 2, Counting Subgraphs, Forgotten Language, Super Numbers, Stacks
November Cook-Off 2015
Sereja and Line, Sereja and Array and Subtracting, Sereja and Pairs, Sereja and Tree, Sereja and Tree 2
December Cook-Off 2015
Chef and Subarrays, Chef and Queries, Chef and LCS, Chef and Vectors
March Cook-Off 2016
Digital clock, Dual Nim, Alternating subarray prefix
February Challenge 2017
Chef and Triangles, Chef and His Apartment Dues, Most Frequent Element, Gerrymander
March Challenge 2017
Cooking Schedule, Completing favorite game, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix
February Cook-Off 2017
Download file, Chairs, Cooking Game
July Cook-Off 2017
Chang and Bitwise OR, Chang and the Perfect Function, Chang and Perfect Quadruples, Bipartite Graph from Trees
June Cook-Off 2018 Division 1
Masha and Minions, Sonya and Segments, Good Permutations
December Cook-Off 2019 Division 1
Xor It
December Challenge 2019 Division 1
Chefina and Ranges, Binary XOR, Scoring Pairs, Sticky Notes, Test Generation, (Challenge) Cubical Virus, Addition
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Chefina and Prefix Suffix Sums, English, Chefland Army, (Challenge) Building Anthills
March Challenge 2020 Division 1
Chef and DAG, Lasers Everywhere, Lasers Everywhere Alternative
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Factor Tree, Leaked Answers (Challenge)
May Challenge 2020 Division 1
Buying a New String, Triple Sort, Binary Land, Sorting Vases, Chef and Bitwise Product, (Challenge) Nanobots
May Cook-Off 2020 Division 1
Chef, Chefina and Their Friendship, Chefland Squads and the Army Chief, Chefina on a Trip, Roads in Chefland
June Challenge 2020 Division 1
The Tom and Jerry Game!, Operations on a Tuple, The Delicious Cake, Convenient Airports, Guessing Game, Covid Sampling (Challenge)
July Challenge 2020 Division 1
LCM Constraints, Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef
July Cook-Off 2020 Division 1
The In-XOR-able Task, Even-tual Reduction, OR-thodox Distinction, Path-etic Products
December Cook-Off 2020 Division 1
Mysterious Sequence, Self-Destructing Strings, Sed Passwords, Circle of Chaos, Carry All Fruits
January Cook-Off 2021 Division 1
Mex Subsequence, Not Too Colourful, Prefix And, Common Ancestors
November Cook-Off 2020 Division 1
Flip the String, Chef and IPC Certificates, Graph Construction, Hiring Workers
February Challenge 2021 Division 1
Team Name, Another Tree with Number Theory, Prime Game, Multiple Games, XOR Sums, Cut the Cake (Challenge), Bash Matrix, Cell Shell
February Lunchtime 2021 Division 1
Average Sorting, Minimum Divisibility Set, Sed Max, Chef and Reordering, Independent Set
August Challenge 2021 Division 1 (Unrated)
Special Triplets, Array Filling, Geometry 1, Chef and Bulb Invention, Alternating LG Queries, Charge Scheduling, Chef and Digits of Large Numbers, Fat Hut, Problem Difficulties, Olympics Ranking
August Cook-Off 2021 Division 1
Odd Array, Different String, Chef 2 Chef, Interactive Equivalency, Clear the Array
August Lunchtime 2021 Division 1
Bunny Hops, Min-Max Path, Just a Graph, Longest Spanning Substrings, Chef and Deque
AlgoManiac - Code For Future Division 1 (Unrated)
Overpowered Divisors, Planetary Path, Deja Vu, Two Shades Of A Tree, Say No To Drugs, The Rumbling, The Old Saint And Three Questions, Meet In The Median
September Cook-Off 2021 Division 1
Chess Kings Chasing Game, Chef and Pairwise Distances, Permutation and GCD Set, Half Sequence, Fake Swaps
SnackDown 2021 - Online Qualifiers
Prefix as a Substring 2, Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference
October Cook-Off 2021 Division 1
Can You Reach The End, Second Player, Find the Modulus, Chef Up, Permutation Sorting Game
October Lunchtime 2021 Division 1
Median Rearrangement, Tree Upshot, MAX-SEG
SnackDown 2021 - Online Round 1A
Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
SnackDown 2021 - Online Pre-Elimination
Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers
SnackDown 2021 - Online Elimination Round (Rated for all)
Random Convex Hull, Graduate Work Matters, Sorting Segments
December Cook-Off 2021 Division 1
Binary String Game, Destructive Nim, RGB Construction, Break the Balance
December Lunchtime 2021 Division 1
In-tree-active Node Coloring, Optimal Sorting, Romantic Reversals, Sleep Technique , Point constraints
January Cook-Off 2022 Division 1
Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Erase All But One
January Lunchtime 2022 Division 1
Circular Permutation Recovery, Permutation XOR Sum
March Cook-Off 2022 Division 1
Secret Tree, Dragonado And XOR, Flippable Points, Alternating Divisibility
April Lunchtime 2022 Division 1(Rated)
Modular Circular Permutations, Do Not Touch the MEX!!!, Secret Machine Mania, AND Palindromes
August Lunchtime 2022 Division 1 (Rated)
Sort the Array, Tree Coloring, Subtract 12 Operation, Mex On Subtrees, MEX Permutation Difference
September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)
Increasing Addition, Remove Numbers, Adjacent Pairs, Longest Unfriendly Subsequence
February Cook-Off 2023 Division 1 (Rated)
Take Not Less, Alice Potter and OWL, Alice Potter and Wingardium Leviosa, Alice Potter And Dumbledore Army
Starters 144 Division 1 (Rated)
Counting Is Fun, Sort Lexicographically , Find P, Minimise Inversions, Largest K
Starters 173 (Rated upto < 2700)
Cool Subsequences, Postman and LLM, Introverts, Cool Checker, Time Penalty, Overwrite
Starters 181 (Rated for all)
The Best Matrix, Tree Colouring (Hard), Flip Prefix
Starters 200 (Rated for all)
Permutation Counting (Easy), Lexicographic Matching, Minimum Set, Restrict Palindromes