Kamran

Practice: 

Life, the Universe, and Everything, Head office building, Ripple-Carry Adder, Arranging the Appetizers, Baking Cupcakes, Cleaning Up, The Perfect Chocolate Candy, Two Chefs, Birthday Candles, Cooling Pies, N Knights Problem, One Dimensional Game of Life, Dinner Party Socializing, Cutting Recipes, Preparing Dishes, The Morning Commute, Pairing Chefs, Chef team, Whole submatrix, Integer Sequences, Breaking Into Atoms, Three Way Communications, Money Transformation, Snake Snaky, Grouping Chefs, A Prime Conjecture, Internet Media Types, Socializing Game around Pizza, Longest Arithmetic Progressions, Pleasing Chief, Ciel and Eggs, Chefs new Pet, New Restaurant, Colorful Chain, Ciel and Quiz Game, Collision in Space, Makx Sum, Remys last tour, Moving between Floors, Zeta-Nim Game, Authentication Failed, Careful Calculation, Machine Gun, Codechef Password Recovery, Expected Greatest Common Divisor, Chef and Chain, Queries on the String, Chef and Strings, Chef and Equality, How to Choose a Subset, Walks on the binary tree, Weasel does Xor on Tree, Chef and Two Queens

May Cook-off 2011: 

Popular Rice Recipe, Distribute idlis Equally

June Long Contest 2011: 

Maximal Score Path, Chef Teams

June Cook-off: 

Correctness of Knight Move, Super-plane

July Cook-off 2011: 

Misinterpretation, Garden Squares

August Long Contest 2011: 

Infinite Grid Game, Complex Spanning Tree

August Cook-off 2011: 

Vote for the Noodle Soup, Open the Dragon Scroll, Rotate the String, Collect the Chocolate Chips

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

October Cook-off: 

Generalized Arithmetic Progression Free Sequence, Chef Travel Routes

November Cook-Off: 

Moving Coins, Subanagrams

December 2011 Long Contest: 

Birthday Gift, Robot Movings

December Cook-Off: 

Ciel and New Menu, Ciel and A-B Problem

January 2012 Challenge: 

Ambidextrous Chefs, Houses and Restaurants, Gap Filler Game, 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, Equation Solver

March 2012 Challenge: 

Longest Weird Subsequence, Cosine Partition Function, Lucky Number, Free Shuttle Service, Home Delivery, Spoon in Matrix

March Cook-Off 2012: 

Ciel Numbers I, Ciel Numbers II

April Challenge 2012: 

PDS Number, Lucky Array, Parallel Computing, Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight

Paradigm Shift contest 2012: 

Martian Football Tournament, Interesting Martian Trips, Lucky on Mars, Pleasing the Martian King

April Cook-Off 2012: 

Top Batsmen, Crease Painting, Resistance

May Challenge 2012: 

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

May Cook-Off 2012: 

Little Elephant and Balance, Little Elephant and Strings

June Challenge 2012: 

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

Android Hack Camp v.02: 

The Parallel Art, Family Tree, Voting, Simple problem

June Cook-Off 2012: 

Closing the Tweets, Connecting Soldiers

August Challenge 2012: 

Little Elephant and Bombs, Lucky Driving, Block Game, 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

October Challenge 2012: 

Little Elephant and Order, Fierce Battles, Event Organizer, Maximum Sub-rectangle in Matrix, The New Scheme, Need More Diamonds

October Cook-Off 2012: 

Buying Sweets, Equalization, Tennis Tournament, Tree Fun

December Challenge 2012: 

Granama Recipes, Magic Rankings, The Uncountable Ways, Pizza Delivery

December Cook-Off 2012: 

Root of the Problem, Packaging Cupcakes, Reversing directions

January Challenge 2013: 

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

June Challenge 2013: 

Collecting Magical Berries

November Cook-off 2013: 

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

April Challenge 2014: 

Counting Matrices

July Challenge 2015: 

Bread, Na2a and lucky stone, Chef and Cube

September Challenge 2017: 

Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Sum of Cubes, Fill The Matrix, Little Chef and Sums

October Challenge 2017: 

Chef and Magic Arrays, Chef and a great voluntary Program, Chef and Cycled Cycles, Shooting on the array, Max Mex, Counter Test For CHEFSUM, A Balanced Contest, (Challenge) Connecting computers, Lucky Edge

November Challenge 2017: 

Chef and Intersection Line, Product on the segment by modulo , Chef Hates Palindromes, Polynomials, Chef and Subarray Queries, Chef goes Left Right Left, Lovers Gift, Periodic Palindrome Construction, Villages and Tribes

January Challenge 2018: 

A humongous Query, Killjee and k-th letter , K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

February Challenge 2020 Division 1: 

Chef and Railway Stations, Expected Change, No Change Required, Balancing Network Revisited, Chef and Gordon Ramsay 2, (Challenge) Raisins, Long Contest and Cook Off Overlaps

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