Aleksey Ropan

Practice: 

Life, the Universe, and Everything, Palindrome Palindrome, Travelling Chef Problem, Chef and The Recursive Algorithm, Parenthesis with Maximum Sum Subarray

The November CookOff: 

Choosing Cook Off Problems, N Knights Problem, One Dimensional Game of Life, Cutting Recipes

January 2011 Challenge: 

Flu Shot Lineup

February Cook - Off Challenge: 

Integer Sequences, Breaking Into Atoms, Three Way Communications

March 2011 Challenge: 

Omax

March Cook-off Challenge: 

Money Transformation, Snake Snaky, Grouping Chefs

April Long Contest: 

Gravel, Number Game Revisited, Central Point, Rectangles Counting

May Long Contest 2011: 

Tree Product, The Great Wall of Byteland

May Cook-off 2011: 

Popular Rice Recipe, Socializing Game around Pizza, Packing the Golden Triangles, Distribute idlis Equally

June Long Contest 2011: 

Maximal Score Path, Chef Teams

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

September Cook-off: 

Last Digit Sum, Digit Rotation, Hotel Bytelandia

The Code Hunt, VITS, Satna, Round 1.: 

Sum of tokens, Area of Park, Total Score

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

December 2011 Long Contest: 

Robot Movings

December Cook-Off: 

Ciel and New Menu, Ciel and A-B Problem

January Cook-Off: 

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

February 2012 Challenge: 

Lucky Count, Lucky Long, Word Couting, Count of Maximum

Code Olympics 2012: 

Great Expectations, Sense and Sensibility, A Walk to Remember, Perfect Timing, Needful Things

March 2012 Challenge: 

Spoon in Matrix

May Challenge 2012: 

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

June Challenge 2012: 

Polynomial Partition Function, Little Elephant and Product, Little Elephant and Candies, Doom Bakes Cakes, Arranging Cup-cakes

August Challenge 2012: 

Little Elephant and Bombs, Lucky Driving, Range of Data, Delivery Boy

September Cook-Off 2012: 

Recipe Reconstruction, Carvans, Coal Scam

October Cook-Off 2012: 

Buying Sweets, Equalization, Rearrangement, Tennis Tournament

March Cook-off 2013: 

The Ball And Cups, Palindrome, Traveling Plan, Level Of Difference

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

August Cook-Off 2013: 

Chef and The Right Triangles, Chef and The Divisibility Queries, Chef and The String of Digits

September Challenge 2013: 

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

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

November Cook-off 2013: 

Am I a Fibonacci Number, Lowest Sum, Number of Paths, Trees and Subtrees, Rank of the Number

January Challenge 2014: 

Magic Trick, ForbiddenSum, Meteor, Bon Appetit, Please like me, Chef and Feedback

April Cook-Off 2014: 

Snape and Ladder, BiCo Gaming Grid

August Cook-Off 2014: 

Tree Game, Permutation Shuffle, Shooting

February Cook-Off 2015: 

Fit Squares in Triangle, Strategy for the World Cup

February Cook-Off 2020 Division 1: 

Maximum Subsequence Sum, XOR Game, Chef and Pepperoni Pizza Again

April Cook-Off 2020 Division 1 : 

Tower Counting, Simple Operations, Inversions in Permutations

May Cook-Off 2020 Division 1: 

Chef, Chefina and Their Friendship, Chefland Squads and the Army Chief, Chefina on a Trip, Roads in Chefland

March Cook-Off 2021 Division 1: 

Consecutive Deletions

August Cook-Off 2021 Division 1: 

Odd Array, Different String, Chef 2 Chef, Interactive Equivalency, Clear the Array

October Cook-Off 2021 Division 1: 

Can You Reach The End, Find the Modulus, Chef Up, Permutation Sorting Game

November Cook-Off 2021 Division 1: 

Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers

December Cook-Off 2021 Division 1: 

Binary String Game, Destructive Nim, RGB Construction, Break the Balance

January Cook-Off 2022 Division 1: 

Subsegment Divisibility , Merged LIS, Prime Graph, Erase All But One

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