I.T

Practice: 

Factorial, Bytelandian gold coins, Life, the Universe, and Everything, Flipping Coins, Houses and Restaurants, Card Shuffle, Golden Trees, The Street , The Smallest Pair, Sereja and Order, The Spelling Problem, Most Distant Points

April Long Contest: 

Number Game Revisited

May Cook-off 2011: 

Popular Rice Recipe

August Long Contest 2011: 

Infinite Grid Game

October Long Contest 2011: 

Dish Distribution, The Great Plain, Lucky Palin

December 2011 Long Contest: 

Birthday Gift, Robot Movings, Ciel and Eggs

January 2012 Challenge: 

Houses and Restaurants, Lucky Sum

February 2012 Challenge: 

Box and Ball System, Lucky Count, Restore the Recipe, Lucky Long, Smart Chef vs Evil Chef, Word Couting, Count of Maximum

February 2012 Cook-off: 

Daily Train

March 2012 Challenge: 

Longest Weird Subsequence, Free Shuttle Service, Home Delivery, Spoon in Matrix

April Challenge 2012: 

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, Selling Tickets, Divisible Pairs, Remember the recipe, Little Elephant and Boxes, A Home for Chef

June Challenge 2012: 

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

June Cook-Off 2012: 

Closing the Tweets, Connecting Soldiers

July Challenge 2012: 

Favourite Numbers, Chef's Dream, My Fair Coins, The Gray-Similar Code, Little Elephant and Bubble Sort, Gift Rift, Restaurant Rating, Addition chains

August Challenge 2012: 

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

July Cook-Off 2012: 

Ciel and Receipt, Ciel and Map, Ciel and Tomya

August Cook-Off 2012: 

Code Crazy Minions

September Challenge 2012: 

Kisses & Hugs, Chef World, Racing Horses, Queries About Numbers, ChefTown Parade, Three is Crowd

October Challenge 2012: 

Fierce Battles, Event Organizer, Maximum Sub-rectangle in Matrix, The New Scheme

January Challenge 2013: 

Little Elephant and Alcohol, The Minimum Number Of Moves, Chef of the Year, Three Different Numbers

February 2013 Challenge: 

Little Elephant and Cards, Buy1-Get1, Climbing Stairs, Efficient Painting

April Challenge 2013: 

Little Elephant and Music, Barcelona Gameplay Tactics, Kingdom Unity, Maximum Weight Difference, Levy Conjecture

May Challenge 2013: 

Name Reduction, Your Name is Mine

July Challenge 2013: 

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

October Challenge 2013: 

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

December Challenge 2013: 

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

January Challenge 2014: 

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

February Cook-Off 2014: 

Chef and Remissness, Chef and Kingship

February Challenge 2014: 

Little Elephant and Movies, Draughts, Make It Zero, Make Him Happy, Chef and Favourite Sequence, 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: 

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: 

Compilers and parsers, Chef-jumping, Chef and Strange Matrix, Stone

July Challenge 2014: 

Little Elephant and Painting, Garden Game, Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner

September Challenge 2014: 

Factorisation, 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, Children Trips, Stringology is Magic, 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, Kali and Devtas, XOR with Subset, Course Selection, Chef and Apple Trees, Sereja and GCD, Good galaxy

December Lunchtime 2014: 

Delivery Man, Sum Of Binomial Coefficent , Queries On Tree, String Matching

ACM-ICPC Asia-Kanpur Online Contest 2014, Replay: 

ICPC Pre-Prelims Practice Round, Solving the Practice Contest, Logging in the computer, The Problem Set

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

February Challenge 2015: 

Chef and Chain, Time to Study Graphs with Chef, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Xor Matrix, Jigsaw Puzzle Solving, Chef and Equality, Devu and Locks

March Challenge 2015: 

Count Substrings, Chef and Notebooks, Chef and Problems, Embedding, Sereja and Random Array, Random Number Generator, Devu and his Class, Sign Wave, Matrix, Counting on a Tree

April Challenge 2015: 

Count Sequences, Chef and Array, Chef and Interview, Broken Telephone, Inversion sorting, Division of Lands, Chef and Piano Scales, Little Party, Devus and their voting system

May Challenge 2015: 

Devu and his three Hands, Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe, Chef and Balanced Strings, Shopping, Chef and Cake, Counting on a directed graph, Special Economic Zone

June Challenge 2015: 

Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Another Fibonacci, Anticommutative implication, Chef and String

July Challenge 2015: 

Addition and Multiplication, Maximum Difference Walk, Sereja and Game 2, Bread, A game on a graph, MasterChef, Na2a and lucky stone, Chef and Cube, Rohith and Circles

September Challenge 2015: 

Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix

October Challenge 2015: 

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Cyclic shifts in permutation, Rupsa and Equilateral Triangle

Cranium: 

Queries

February Challenge 2016: 

Chef and Job and Rest, Sereja and Two Lines, Chef and Strange Operations, Devu and a light discussion, Weird Sum, Rectangles of Love, Chef-Detective, Matrix Maximum Sum, Sereja and Permutations, Call Center Schedule

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