Antoniuk Vasyl

June Challenge 2013

Little Elephant and Mouses, Collecting Magical Berries, Just Some Permutations 3, Dessert Wizard, Two k-Convex Polygons, Predictopus, To challenge or not, W String, Lapindromes

May Cook-off 2013

Subtraction Game 1, Subtraction Game 2

June Cook-Off 2013

Attic Crossing, Lyra and the Alethiometer, Tywins Tactics

Lunch Time June 2013

Online Shopping, Number of Factors

July Challenge 2013

Mountain Holidays, Galactik Football, The Probability Of Winning, Chef and Walking on the rectangle , Count K-Primes, Sereja and Sorting

July Cook-off 2013

Chopsticks, A Plus B Again!

Lunch Time July 2013

Cooking dishes

August Challenge 2013

Little Elephant and Lemonade, Music & Lyrics, Hello Hello, Save The Princess, The Number Of Solutions, Chef and Segments, Sereja and Ballons, Deleting numbers, Prime Distance On Tree, Splitting Candies

September Challenge 2013

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

September Cook-Off 2013

Strange Matrix, Code

October Cook-Off 2013

Polo the Penguin and the Numbers, Polo the Penguin and the Test, Polo the Penguin and the XOR

October Challenge 2013

Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Sereja and Transformation, Yet Another Nice Girl, Edit Distance on Grid

November Challenge 2013

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

December Challenge 2013

Art in Digital Age, Cube Cakes, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries

December Cook-off 2013

Chef Goes Through Segments, Chef and Girlfriend

January Challenge 2014

Magic Trick, Sereja and Graph, Meteor, Byteland Tours, Bon Appetit, Please like me, Chef and Feedback

January Cook-off 2014

Chef and the Cake I

May Cook-Off 2014

Book Game with Chef, Divide the Cake, Ups and Downs

February Challenge 2014

Draughts, Make It Zero, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array

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, Shortest Path in Binary Trees

May Challenge 2014

Little Elephant and Balloons, Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone

June Challenge 2014

Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, Chef and Subarray, 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

August Challenge 2014

Mountain Holidays 2, Sereja and Shuffling, Little Elephant and T-Shirts, Chef and Reversing, The Leaking Robot, Earthquake, Cleaning Tables, Chef and Gift

September Challenge 2014

Chef and Rainbow Array - 2, Chef and Swaps, Chef and Left-Right, Chef and sequence, Fun with Rotation, Flooring

October Challenge 2014

Remy paints the fence, Sereja and two strings, Chef and Ground, Chef and Painting, Chef and Square, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

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

December Challenge 2014

Chef Under Pressure, Alok-nath and His Sanskars, Chef and Bracket-Pairs, Divide or die, XOR with Subset, Chef and Apple Trees, Sereja and GCD

March Lunchtime 2014

Statements Checking

August Lunchtime 2014

Harrenhal

September Lunchtime 2014

Chef and easy problem, Chef and easy problem 2, Chef and medium problem , Chef and medium problem 2

January Challenge 2015

Queries on the String, Sereja and Number Division 2, Chef and A Large Permutation, Sereja and LCM, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Xor Queries, Ranka, Gcd Queries

May Challenge 2015

Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe, Chef and Cake, Special Economic Zone

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Cyclic shifts in permutation, Rupsa and Equilateral Triangle, Misha and Gym, LCM equation, Jump mission, Efficient Delivery

February Cook-Off 2015

Parenthesis with Maximum Sum Subarray, Fit Squares in Triangle, Strategy for the World Cup

March Cook-Off 2015

How to Minimize a String, How to Write a Message, How to Repaint a Fence

July Cook-Off 2015

Cops and the Thief Devu, Maximize Disjoint Pair Sum, Adding Special Sum

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

October Cook-Off 2015

Palindrome Pairs, Word Stem, Almost Sorted Permutation

February Lunchtime 2015

Lucky Four, Heavy-light Decompositions, The Warehouse, The First Cube

September Lunchtime 2015

Coffee Breaks, Sum of palindromic numbers

November Challenge 2016

Count Permutations, Friends Meeting, Urban Development, Gift and Chef, Kirito in Memeland, Chef and squares, Task for Alexey

February Lunchtime 2016

Chef and Socks, Chef and Tic-Tac-Toe, Chef and Polygons, Chef and Dominating Subarrays

March Lunchtime 2016

Two Closest, Arrays Sum, Simple Statistics, ABABAABA

April Lunchtime 2016

Maximum K Sums, Coins And Triangle

September Lunchtime 2016

Chef and Inequality

April Challenge 2017

Chef and Digits, Bear and Random Grid, Chef and Divisor Tree, Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

May Challenge 2017

Chef and Sub Array , Long Sandwich , Gotham PD, Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences

Problems Authored (24)

Problems Tested (27)

Editorials Contributed (0)

No Contribution