Roman Rubanenko

Practice: 

Prime Generator, Factorial, Bytelandian gold coins, Enormous Input Test, ATM, Life, the Universe, and Everything, Stepford Houses

The December 2010 Cook-Off: 

The Morning Commute, Pairing Chefs

January 2011 Challenge: 

Flu Shot Lineup

March Cook-off Challenge: 

Money Transformation, Snake Snaky, Grouping Chefs

April Long Contest: 

Gravel, Number Game Revisited, Graphs in Euclidean Space, Rectangles Counting

Netaj Subhash Institute of Technology - CodeZilla: 

Jump it up

May Long Contest 2011: 

Tree Product

July 2011 Long Contest: 

Most Popular Friend

July Cook-off 2011: 

Garden Squares

August Long Contest 2011: 

Infinite Grid Game

August Cook-off 2011: 

Open the Dragon Scroll

November Cook-Off: 

Subanagrams

January 2012 Challenge: 

Houses and Restaurants

January Cook-Off: 

Collision in Space

February 2012 Challenge: 

Box and Ball System, Lucky Count, Lucky Long, Word Couting, Count of Maximum

March 2012 Challenge: 

Tom And Jerry, Longest Weird Subsequence, Lucky Number, Free Shuttle Service, Home Delivery, Spoon in Matrix

April Challenge 2012: 

Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight, Similar Graphs

Paradigm Shift contest 2012: 

Pleasing the Martian King

April Cook-Off 2012: 

Selection for Training Camps, Top Batsmen, Resistance

May Challenge 2012: 

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

May Cook-Off 2012: 

Little Elephant and Strings

June Challenge 2012: 

Closest Points, Little Elephant and Product, Little Elephant and Candies, Arranging Cup-cakes

July Challenge 2012: 

Gift Rift, Restaurant Rating

August Challenge 2012: 

Little Elephant and Bombs, Range of Data, Delivery Boy

July Cook-Off 2012: 

Ciel and Receipt, Ciel and Map, Ciel and Tomya

August Cook-Off 2012: 

Forced Output, Code Crazy Minions

November Cook-Off 2012: 

Little Elephant and Permutations, Little Elephant and Divisors

December Cook-Off 2012: 

Packaging Cupcakes, Reversing directions

January Challenge 2013: 

Little Elephant and Alcohol, Dividing Products, The Minimum Number Of Moves, End Of The World, A Fence for Byteland, Chef of the Year, Three Different Numbers

March Cook-off 2013: 

The Ball And Cups, Palindrome, Traveling Plan

April Cook-Off 2013: 

Andrew and the Birthday, Andrew and the Meatballs, Andrew and the Meatballs again

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, Sequence Transmission

June Cook-Off 2013: 

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

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

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

October Challenge 2013: 

Helping Lira, Maxim and Dividers

November Challenge 2013: 

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

January Cook-off 2014: 

Chef and the Cake I, Subtraction Game, Interrogating Gangsters

May Cook-Off 2014: 

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

June Cook-Off 2014: 

Where the Wild Things Are, Counting Flags, Knapsack Problem, Painting

September Cook-Off 2014, ACM-ICPC Warm up: 

Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2, Updating Edges on Trees

October Cook-Off 2014: 

The Dirty Path, The Army, Walk on the Axis, Mahesh and his lost array

February Challenge 2014: 

Little Elephant and Movies, Draughts, Make Him Happy, Chef and Favourite Sequence, Longest Common Pattern, Little Elephant and Subarrays, Colored Array

June Challenge 2014: 

Little Elephant and Blocks, Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password

December Challenge 2015: 

Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters

May Cook-Off 2015: 

Devu and friendship testing, Devu and decorating birthday cake

July Cook-Off 2015: 

Cops and the Thief Devu, Maximize Disjoint Pair Sum, Path containing K Nodes, Adding Special Sum

December Cook-Off 2015: 

Chef and Subarrays, Chef and Queries

July Lunchtime 2015: 

Greedy puppy, Puppy and GCD, Puppy and game, Puppy and cats

January Long Challenge 2016: 

Rupsa and the Game, Churu and Balls, Devu and Perfume

November Challenge 2017: 

Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes

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Problems Tested (25)

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