Heart Blue

Practice: 

Prime Generator, Transform the Expression, Factorial, Small factorials, Marbles, Poker, Bytelandian gold coins, Ambiguous Permutations, Enormous Input Test, Sums in a Triangle, Turbo Sort, Not a Triangle, GCD2, ATM, The Rise and Fall of Power, Johnny and the Beanstalk, Paying up, Product of divisors, The Guessing Game, The Way to a Friends House Is Never Too Long, Life, the Universe, and Everything, A Very Easy Problem!, Paying up, Johnny and the Beanstalk, Count the squares, The White Knight, Sums in a cuboid, Nuclear Reactors, Sum of pairs, Prime Palindromes, The Lead Game, Permutation Cycles, Discrepancies in the Voters List, A puzzle game, The Best Box, Palindromic Numbers, Rational Numbers, Tri-Hexagonal Puzzle, Yet Another Number Game, Maximal crosses, Gravel, Randomly Testing Circuits, Count palindromes, Arranging the Appetizers, Cleaning Up, A Simple Equation, Decreasing String, Make A Square, Stepping Up, Weight of Numbers, Birthday Candles, Cooling Pies, Painting Racing Lanes, A New Number System, A String Game, One Dimensional Game of Life, Cutting Recipes, Number Game Revisited, The Morning Commute, Pairing Chefs, Holes in the text, Chef team, Three Way Communications, Tree Product, Money Transformation, The Great Wall of Byteland, A Prime Conjecture, Internet Media Types, Chef Teams, Popular Rice Recipe, Distribute idlis Equally, Correctness of Knight Move, Most Popular Friend, Infinite Grid Game, Misinterpretation, Garden Squares, BIT Magazine, Vote for the Noodle Soup, Dish Distribution, Open the Dragon Scroll, Robot Movings, Last Digit Sum, Digit Rotation, Hotel Bytelandia, Chef Travel Routes, Moving Coins, Subanagrams, Lucky Count, Ciel and New Menu, Ciel and A-B Problem, Lucky Long, Free Shuttle Service, Collision in Space, Makx Sum, Word Couting, Home Delivery, Count of Maximum, Spoon in Matrix, Fit to Play, Daily Train, Magic Trick, Double Strings, Jewels and Stones, Ciel Numbers II, Little Elephant and Strings, Stacking Pancakes, Greatest Dumpling Fight, Little Elephant and Alcohol, Little Elephant and Candies, Little Elephant and Mouses, Martian Football Tournament, Interesting Martian Trips, Lucky on Mars, Martian Thief, Martian Coin Game, Top Batsmen, Pleasing the Martian King, Remember the recipe, Resistance, Little Elephant and Bamboo, Little Elephant and Cards, Little Elephant and Exams, Chef's Dream, Kisses & Hugs, Little Elephant and Bombs, Little Elephant and Music, Doom Bakes Cakes, Fierce Battles, Little Elephant and Lemonade, My Fair Coins, The Gray-Similar Code, Gift Rift, Arranging Cup-cakes, Restaurant Rating, Event Organizer, Closing the Tweets, Matchsticks, Range of Data, Delivery Boy, Racing Horses, Ciel and Receipt, Ciel and Tomya, ChefTown Parade, Three is Crowd, Forced Output, Code Crazy Minions, Random decreasing function, The New Scheme, Delicious Dishes, Granama Recipes, Coin Flip, Recipe Reconstruction, Carvans, Buy1-Get1, Book Exercises, Tourist Translations, Magic Rankings, Little Elephant and Permutations, Sridhar Likes Travelling, Buying Sweets, Little Elephant and Divisors, The Minimum Number Of Moves, Pizza Delivery, Barcelona Gameplay Tactics, End Of The World, KGP Summers, Packaging Cupcakes, Reversing directions, Chef of the Year, Climbing Stairs, Approximately, Minimum Distance, Many Chefs, Three Different Numbers, Dyslexic Gollum, Kingdom Unity, The Ball And Cups, Palindrome, Hello Hello, Fire Escape Routes, Lack of Logic, Row and Column Operations, Maximum Weight Difference, Helping Lira, Levy Conjecture, Colouring Drapes, Bertie Botts Beans, Bi Potions, Magical Plate, A Programming Duel, The Illusionist, Stacking Plates, Superpowers of 2, Name Reduction, Your Name is Mine, Field Trip, Save The Princess, Andrew and the Meatballs, Dessert Wizard, Galactik Football, Andrew and the Meatballs again, Predictopus, W String, The Probability Of Winning, Lapindromes, Cool Guys, Subtraction Game 1, Subtraction Game 2, Chef and Walking on the rectangle , Chef and Segments, Chopsticks, A Plus B Again!, Maxim and Dividers, Maxim and Progressions, Sereja and Commands, Count K-Primes, Attic Crossing, Lyra and the Alethiometer, Draughts, Chef and Integers , Splitting Candies, CAO Stage-1, Chef and The Right Triangles, Chef and The Divisibility Queries, Yet Another Cute Girl, Strange Matrix, Code, Polo the Penguin and the Numbers, Polo the Penguin and the Test, Polo the Penguin and the XOR, Cube Cakes, Uncle Johny, Square Digit Squares, Missing some chairs, Chef and Codes, Lucy and the Number Game, ATM, Number Mirror, Am I a Fibonacci Number, Lowest Sum, Rank of the Number, Funny Marbles, Magic Pairs, Make Him Happy, Reign, Rectangular Queries, Chef Goes Through Segments, Mike and Matrices , Bon Appetit, Please like me, Chef and Girlfriend, Chef and Feedback, Team Split, Longest Common Pattern, Little Elephant and Subarrays, Chef and the Cake I, Colored Array, Chef and String, Subtraction Game, Chef and Way, Binary Tournament, Walk, Little Chef and Numbers, Mike and Stamps, Sherlock and the Ciphers, Sherlock and the Perfect Array, Sherlock and Inversions, Sherlock and Subtrees, Chef and Remissness, Chef and Kingship, Chef and Reunion, Sereja and ASum, Alok-nath and His Sanskars, Dividing Stamps, Chef and Chain, Chef and Segment Game, Chef and Digit Jumps, Chef and Subarray, Chef and Bracket-Pairs, Divide the Cake, Ups and Downs, Tree Game, Count Substrings, Count Permutations, Count Sequences, Guessing Game, Permutation Shuffle, Approximately II, Addition and Multiplication, Forgot Password, Counting Flags, Painting, Sherlock and the Grid, The Smallest Pair, Subarray GCD, And Operation, Shift The String, Lowest Common Ancestor, Cleaning Tables, Friends, Flooring, Harrenhal, Chef and Strange Formula, Tanu and Head-bob, Chef and easy problem, Steady tables, Distinct Characters Subsequence, Chef and Red Black Tree, Chef and A Large Permutation, Chef and Notebooks, The Army, Walk on the Axis, Let us construct palindrome, Matrix Again, Player, Chef and Strings, Brackets, Petersen Graph, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Bread, Good Joke!, Fit Squares in Triangle, Piece of cake, Gcd Queries, Suraj goes shopping, Tojo hates probabilities, Let us play with rank list, Chef and Equality, Chef and Interview, Chef and Strange Operations, Lucky Four, Broken Telephone, Strategy for the World Cup, Chef and His Friend, Andrash and Stipendium, Chef and Memory Limit, Way Out, Chef and Piano Scales, Chef and Polygons, How to Minimize a String, Chef and Cake, Equality, Version Control System, How to Repaint a Fence, Tickets, Chef and Friends, Utkarsh and LCM, Shil and the Toy Factory, Gravity Guy, MasterChef, Devu And Churu , Devu and Grapes, Add Two Numbers, Find Remainder, First and Last Digit, Smallest Numbers of Notes, Sum of Digits, Reverse The Number, Helping Chef, Total Expenses, Id and Ship, Gross Salary, Valid Triangles, Grade The Steel, Gregorian Calendar, GCD and LCM, Second Largest, Small Factorial, Primality Test, Finding Square Roots, The Block Game, Farmer And His Plot, Chain of Doughnuts, Chef and Dolls, Chef and his Sequence, Devu and friendship testing, Rupsa and the Game, Devu and decorating birthday cake, Entrance Exam, Make XOR zero, Rupsa and Number army, Chefs and Voting for best friend, Train Partner, Cops and the Thief Devu, Maximize Disjoint Pair Sum, Cooking Machine, Time measure, Devu and his mouse Jerry, Divisibility by 9, Chef and Table Tennis, Longest non regular parentheses sub-sequence, Churu and Balls, Count Subarrays, Count Steps in Matrix, Strange operations, Chef and Bitwise OR Operation, Chef and Submatrix, Chef and Two Strings, Greedy puppy, Puppy and game, Dividing Machine, Bank robbery, Chef and Segments, Who dares to be a millionaire, Receipt Recovery, Forgotten Language, Friends Meeting, Spheres, Chef and the stones, Chef and the XORed Number , Churu and lost string, Eugene and function, Chef and the Wildcard Matching, Capital Movement, Minimum Maximum, Rupsa and Equilateral Triangle, Sum of palindromic numbers, Yet Another Problem About Sequences, Super Numbers, Chef And Operators, Chef and Two Fans, Stacks, Plane Division, Chef and cakes, emitL, Fast squarer, Oracle Devu and Longest Common Subsequence, Mahasena, Word Stem, Almost Sorted Permutation, Bhallaladeva, Chef-Detective, Processing a string, Chef and Tetris, Mutated Minions, Ancient Berland Roads, Chef and Destruction, Distinct Codes, Query over Matrix, Black And White Cells, Palindromic substrings, Sereja and Line, Sereja and Array and Subtracting, Chef and Pick Digit, Chef and Time Machine, The making of a cake, Chef and Subarrays, Chef and Queries, Devu and Perfume, Triangle Classification, Chef and Fruits, Help Watson Escape, Malvika conducts a Programming Camp, Malvika is peculiar about color of balloons, Utkarsh and Tree Labeling, Crazy Malvika discovers Crazy Fibonacci function, Chef and digits of a number, Shil and Shortest path, Same Old Matrix Problem, Utkarsh and Random Trees, Digital clock, Shil and Special Xor Sum, Knapsack on Tree, Alternating subarray prefix, Utkarsh and Sub Array Sum, Shil Loves Exclusive Or, Shil and Rasenshuriken, Faded Palindromes, Gift and Chef, Chef and Socks, Chef and Tic-Tac-Toe, maximize the sum, Chef and math, Chef And Special Dishes, Puppy and Board, Puppy and Sum, Chef and Chocolate, Chef and Ballons, Forest Gathering, Simple Statistics, Ada and crayons, Chef And Magical Path, Chef And Coloring, Maximum K Sums, Movie Weekend, Odd Divisors, Cooking Schedule, Chef and Round Run, Cats and Dogs, Chef and Big Soccer, Laddu, Coins And Triangle, Akhil And Colored Balls, Phantasialand, Akhil And Random String, Kitchen Timetable, Better Maximal Sum, Floor Division Game, K-good Words, Sticks, Right Triangle, Art, N different palindromes, Chefland and Electricity, Collisions, One more weird game, Good Numbers, Skyscraper Equilibrium, Chef and Proportion, Chef and Numbers, Chef and Land, Chef and squares, Tweedle-Dee and Tweedle-Dum , Chef and calculation, Drumpf for President!, Lumpy - The Bus Driver, Studying Alphabet, Lock-Free Stack, Lazy Jem, The Lost Arithmetic Sequences, Chef and Inequality, Sherlock and the Ugly Flower, Watson asks Does Permutation Exist, ChefWatson uses Social Network, FastFood Combos, Task for Alexey, The Largest Bouquet, Help Lost Robot!, Beautiful Arrays, Watson and Digit Sums, Good Sets, Kirito in labyrinth, Sebi and the highway, Chef and his Students, Chef and Square Set, Chef and Subset, Chef and Subarrays, Extreme Encoding, Mr Wireless, Quentin Tarantino, Superheroes and villains, Fly height mode, Digits Cannot Separate, Reservior, Tourists in Mancunia, Nothing in Common, Chef and Triangles, Digit Longest Increasing Subsequences 2, Chef and His Apartment Dues, Most Frequent Element, Gerrymander, Chairs, Xenny and Alternating Tasks, Bear and House Queries, Bear and Extra Number, Bear and Milky Cookies, Bandwidth of a matrix, Number Tower, Square of a Number, Maximum of Three Numbers, Second Max of Three Numbers, Rainbow Graph, Safe Robot, Bear and Ladder, Bear and Species, Cards Game, BST Operations, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes, Bear and Shop Trip, Bear and Candies 123, Bear and AB, Bear and Segments, Bear and Segment 01, Blocked websites, Snake Procession, Snake Eating, Chef got Recipes, Temple Land, Same Snake, La Liga, Balanced Array, Hussain Set, Prefix Inversions, Consecutive Snakes, Team Formation For Snackdown, A temple of Snakes, Is It a Snake, Prefix XOR, SnackUp, Snakes, Mongooses and the Ultimate Election, Snakes and their coup against The mongoose, Snakes and transition from Capitalism to Socialism, Mex division, Maximum Unique Segment, Two Numbers, Chang and Bitwise OR, Chang and the Perfect Function, Chang and Perfect Quadruples, Maximize Grid Score, Minimum Good Permutation, Mathison and the Dynamo shuffle, Fill The Matrix, Matrix and Chef, Real obtuse, From heaven to earth, Mathison and pangrams, Max Mex, Little Chef and Sums, Infinite OR Game, Statistics Construction, Subsequence Equality, A Balanced Contest, Chef and Cook-Off Contests, Total Diamonds, Modular GCD, Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries, Buggy Calculator, Minimum SubArray, Maximum Number, Obtain Desired Standard Deviation, Ordering teams, Days in Month, Strange Function, J - Reached Safely Or Not, Long Homework, K Fibonnaci, A - Appearance Count, Online Chess, Random Pair, D - Triangle Count, Chef And his Cake, Obtain Desired Expected Value, Penalty Shoot-out, Chef and Hamming Distance of arrays, Good and Bad Persons, Uniform Strings, Spam Classification Using Neural Net, Optimize The Slow Code, Coupon System, Quadratic Functions, Beautiful Array, A Tale of Three Squares, Football Match, Coder Life Matters, K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers, Multiple of 3, Chef and Game with Sequence, Chef And His Characters, Chef and Escaping from the Labyrinth, Chef And The Patents, Survive in ChocoLand, Mighty Friend, Chef and Easy Problem, Car-pal Tunnel, A Big Sale, Permutation and Palindrome, Chef and Cook-Off, Chef and Tuples, Chef and Line, Matrix Game, Game with numbers, Jumping in the hills, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas, Help Voldemort, Weight of Numbers, Chef Goes to the Cinema, Chef Restores a Matrix, Chef Judges a Competition, Split Sums, XD Subsequences, Chef and Friends, Three Integers, Magic Elements, Fibonacci String, Minimum Deletions, Count Good Prefixes, Average of Pairs, Workers, Xor Again, The Deadly Sin, Candy Love, Vision, Chef and Replication, Immortal Frieza, Majin Vegeta, Cut the Board, Binary Nim, Two vs Ten, The hardest gcd problem, Cricket Score, Dibs on Fibs, Best Cake Ever, Secret Recipe, Sheokand and String, Binary Shuffle, Naive Chef, Trace of Matrix, Count Substrings, Maximum Plus, Roots of a Quadratic Equation, Sum OR Difference, Decrement OR Increment, Area OR Perimeter, HOW MANY DIGITS DO I HAVE, Program Your Own CALCULATOR, Is it a VOWEL or CONSONANT, Archi and Comparsion, Problem Sort, Good Permutations, Summary Power, Counting Pretty Numbers, No Minimum No Maximum, Magic Set, Strike or Spare, No Strings Attached, Encoding Message, OR Matrix, Chef and GCD Game , Split Stones, Chef and Secret Ingredient, Chef and Bored Games, Chef and Polygon Cakes, Chef and Cookies, Chef and Sorting, Prime divisors, Sheokand and Number, Spell Bob, The Great Run, Kill them with your success, GukiZ and Candies, Mixi Game, Magician versus Chef, Balsa For The Three, Chef and Problem Setting, War of XORs, Chef and Eid, Mix Mix Game, Chef and Adventures, Binary Nim 2, Ada School, Appy and Balloons , Minimize Digitsum, Chef and Serves, OneTwo, Byte to Bit, ATM Machine, Make a Permutation, Chef and Ridges, Judging Delay, Opposite Cites, Chef Restaurant , Spread the Word, Finding Teammate, Qualifying to Pre-Elimination, Chef and Operations, Chef and SnackDown, Chef and Semi-Primes, Knight Chess, Ada King, Graph on an Array, Ada and the Staircase, Pumping Water, Chef and Typing, Chefland and Average Distance, Chef and Card Trick, Chef and Periodic Sequence, A Game of Robots, Reduction Game, Paint the Wall, Appy Loves One, Three Friends, Coloring the Grid, Weird Question, Chef and Sequence, Chef and Difficult Contests, Chef and Happiness, Heap Pirates, Buddy NIM, Arranging the Inventory, Chef and Two Queens, Truth and Dare, Beautiful Garland, Subtract Leading Digit, Cutting Pizza, Antimatching, Max and Electrical Panel, Useful Number, Chef and Interactive Contests, Event, Chef and An Ideal Problem, Beats and Pieces, Maximise the Sum, Lucky Number Game, Count Periodic Numbers, Play Piano, A - Even Odd subsequences, Life Limited, Prefix Numbers, Camp Or Not, Yalalovichik Numbers, Fighting Armies, Magic School, Valid Stack Operations, XOR! Wait for it, Is it a Cakewalk Problem, Martingale, Print Pattern, Choosing from Buckets, Summation over nCr, Availability, Age Calculator, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, Ada King, Distances, Rooks, The Nights Watch, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef, Max Range Queries, IPL and RCB, Chef and Secret Password, Buying New Tablet, Chef and Party, Chef and Number Game, Average Number, The Tricky Deal, Chef and a Beautiful Digit, XOR N-bonacci Sequence, UEFA Champions League, Markers and Caps, Friend or Girlfriend, FlatLand, Too Many Candies, Maximum Remaining, Subtree Removal, Testing Robot, Pogo Stick Competition, When to take medicine, Making a Meal, Chef Learning Hungarian Algorithm, Reduce to One, Road Signs, Chef and Proxy, Guddu on a Date, Attendance, Fast Food, AFGJI Board Game Tournament, Friend in Need, Hell in the Cell, Strange Game, Numbers Wanted, Chain Reaction, Ankit and his Adventures, Misha and Nice Sets, Recover the Sequence, Dummy Palindromic Strings, CV, Dilemma, Easy Fibonacci, Chef and Distinct Numbers, Chef and Sum, Chef and Pairs, Multiple Choice Exam, Eat Twice, Ping Paja Pong, Chef and Mean , Hard Sequence, Magda and Silly Pairs, Football, Distribute Apples, Playing with Strings, Two Variables, Easy Math, Swapping, A - Books, Chef and Dynamo, Chef Drinks Coke, Chef and Interesting Subsequences , Eidi Gift, Plus Multiply, K Halves, Phone Prices, Playing with Matches, Dipole Moment, Chef Feeds Cats, Weapon Value, Discount in a Shop, Cakewalk, Medel, Select Training Set, Full Barrier Alchemist, The Promised Land, Dinosaurs Football, Khaled in HIT, How much Scholarship, Chef Diet, That Is My Score!, Compress the List, Train or Walk, Is This a Give Away, Safe Robots, Breaking Bricks, Change It, Usain Bolt vs Tiger, Minion AND Range, Stupid Machine, Check Algorithm, Chef Chick, Recruit Villagers, School of Geometry, Bob and His Friends, Chef and Street Food, Pintu and Fruits, Hard Cash, Lavanya Loves DFA, Mr Pr in a Dilemma , Tax Slabs, At the Gates, Find Your Gift, Coronavirus Spread, Chef Swaps Digits, Sell All the Cars, COVID Pandemic and Long Queue, Lift Requests, Isolation Centers, Chef in Fantasy League, Chef and Recipe, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Weird Walk, Lost Weekends, Chef and Price Control, Cache Hits, A Problem on Sticks, Chef and Demonetisation, Perry learns Binary, Increasing Decreasing, 1 - Cakezoned, Chef and Card Game, Chef and Strings, Even-tual Reduction, Winning Strategy, Priya and AND, Chef and Steps, Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, 2 - Sums divisible by 3, Polygon Relationship, Chef and Work, Ada Matrix, Mode of Frequencies, Bowling Strategy, GCD operations, Watermelon, Restore Sequence, Covid Run, Chef and Easy Queries, Split the Str Ing, Decreasing Srrnmieeda, Ada and Dishes, AND Plus OR, Frog Sort, Flip the String, Gasoline Introduction, Interesting XOR!, Positive Prefixes, Vaccine Production, Vaccine Distribution, Hidden Numbers, Catch the Thief, The Begining Era Of Cyberverse, Minimum Attendance Requirement, Sed Sequences, Chef and Division 3, Point Of Impact, Encoded String, Daanish and Problems, Chef and Groups, Ashishgup and Interviews, Chef and Meetings, College Life 2, Distinct Pair Sums, Password, Maximise Function, Pair Me, Even Differences, Highest Divisor, Body Mass Index, Space Arrays, PCM Dilemma, Memcached Service, Chef and Laddus For Children, Smallest Possible Whole Number, Chef and Coupon, No Time to Wait, Total Correct Submissions, Turn It, Nobel Prize, Vidit and Einstein, Motivation, Pawri Meme, Weight Balance, Lucky Four, Smart Phone, Possible Victory, Chef and Dice, Make the Sum Even, Valid Pair, Strong Language, Passing Marks, Chef On Island, Chef in Heaven , Hiring Test, Lucky Boundaries, B - Valentine Couples, A - Save Water Save Life, Chocolate Monger, Equinox Strings, Xor Equality, Coldplay, Hoop Jump, Golf, Solubility, Marathon, Plagiarism, Tom And Jerry 1, Bella ciao, False Number, Lazy Chef, Correct Sentence, Summer Heat, HTML Tags, ICPC Balloons, Chefland Visa, XxOoRr, Richie Rich, The One On The Last Night, Chess Match, The Wave, Cyclic Quadrilateral, Maximum Production, Relativity, Chef and Spells, Equal Difference, Cricket Ranking, Shoe Fit, Chess Format, Shuffling Parities, Food Chain, Red Alert, Problem Difficulties, Javelin Qualification, Penalty Shots, Say No To Drugs, Black cells in a chessboard, Large Square, Bus full of passengers, Which Division, Odd GCD, K-th Maximum, Maximum Length Even Subarray, Programming Languages, Hardest Problem Bet, Odd Repeat, Maximise the Subsequence Sum, Airline Restrictions, Travel Pass, The Old Saint And Three Questions, Longest AND Subarray, The Grid Fill Problem, Find the Direction, Obtain the Sum, The Two Dishes, Cars and Bikes, Good Weather, Fake GCD, Adjacency Hatred, Make it Divisible, A Subtask Problem, Three Boxes, Two Dishes, Prefix Sums, Vaccine Dates , Maximum Light Up, The Preparations, Professor And Directions, Chef And Salary Pay, Yet another SOD problem, Magical Doors, Diagonal movement, Drunk Alcoholic, Which Mixture, FIXFIX, RCB and Playoffs, Cool Name, Magical Planks, Nice Pairs , Gold Mining, Lucky Number, Alternating Work Days, Dance Moves, Pass or Fail, Chef and Pairing Slippers, Exactly N plus 1 Values, Average Flex, Problem Category, Queens Placement , Equal Coins, The One with Russ, Chef on Vacation, New Piece, Can_Reach, Disabled King, Odds and Evens, Can You Eat It, Missing Sums, Back to Campus, Make them equal, The One Where It All Began, Minimum Number of Pizzas, Chef and Stock Prices , List of Lists, Utkarsh and Placement tests, Yet another subarray problem, Remove Element, Car Range, Game between friends, Chef and Contest, Sleepy Chef, Indivisible Permutation, Median Minimization, Avoid Fixed Points, 1111---- !, Stable Sequence, Genes, Chef and Pal, Red Light, Green Light, String protocol, Plusle and Minun on Array, Two Rooks, Friends Meetup, Musical Chairs, The Pandemic, World Chess Championship, Chef and Vacation Transportation , Chef Loves 1010, ZERO GAME, Predict the Weather, Equal Integers, Help Chef, MAX PRODUCT, Magic Number Check, Subarray permutations, Maximum Trio, Up and Down, Subsequence and Bitwise &, String Leader, Mathematical Madness of Spiderman, Exclusive mean, Mumu & Her Dogs, Escape Plan, Devendra and Water Sports, Favourite String of Chef, Akash and Grid, Magical Subsequence, ChefWM, And Or Union, Covid and Theatre Tickets, Mean equals Median, The Melancholy of Problem Setter, Vishesh and his Popcorn Combo, Sarthak and his Magic Grid, Vedant and his Hidden Array, Second Maximum, Swap two number, Prashant And Sum, Greet your senior, Easy Summation, Help the chef, Palindromes Not Allowed, Mean Maximization, Crying Colours, An Interesting Sequence, Mask Policy, Chef and Fixed Deposits, Hungry Ashish, Equal Card Game, Elections in Chefland, Average of Three, Chef and Profits, Avoid Contact, Chef and Subset Additions, Chef and Lockout Draws, Badminton Serves, Yet Another Constructive Problem, EVM Hacking, Binary Base Basics, Equal MEX, N Queens Puzzle Solved !, Chef and the Hair Salon, Akash and Function, Points and Lines, Fit in Data Type, Chef and His Fruit Stand, Chef and NextGen, Xor Palindrome, Careless Chef, Valentine is Coming, Count the Notebooks, Hostel Room, Control the Pollution, Distinct Binary Strings, Get Lowest Free, Too many items, Shopping Change, Complete the credits, Guess the bottom face, Lazy Salesman, Peaceful Party, Prefix Permutation, Blackjack, The product mystery, Four Equidistant Points on a Grid, Good Program, Parallel Processing, Battery Low, Fill the Bucket, Tyre problem, Chef and Instant Noodles, Watching Movies at 2x, Chessboard Distance, Permutation Xority, Bomb the base, Self Defence Training, Car Choice, Qualify the round, Count the Holidays, Janmansh and Games, Janmansh and Coins, Janmansh and Assignments, Janmansh at Fruit Market, Equal Mex Splitting, Alternating Divisibility, Substring of a Substring, Akash and Missing Class, Exact Marks, Alice and Marks, Integers that sum to the same value, Discus Throw, Bath in Winters, Wordle, Gift Shop and Coupon, Chef and Water Bottles, Swapping Chefs Way, Credit score, Chef and Chocolates, Chef and Races, Balanced Reversals, Increase IQ, Sad Splits, Minimum number of coins, Chef and Brain Speed, Chef and Gym, Chef and Masks, CRED Coins, Adjacency Love, The Three Topics, Alternating String, Sign Moves, Cup Finals, The Unchanging OR, Group Assignment, Economics Class, Missing Numbers, The Rating Dilemma, Maximize the Minimum, Binary String Cost, Volume Control, Finding Shoes, Geometric Mean Inequality, Flip Sorting, Sasta Shark Tank, Test Averages, Speed Limit Test, Bucket and Water Flow , Apples and Oranges, Chef and Chocolates, Course Registration, Sticks and Rectangles, Funny Hand, Array operations, Email Reminders, Dazzling GCD Pair, Prime Sum, Distinct Dilemma, The Cheaper Cab, Monthly Budget, Minimum Cars required, Non Adjacent Flips, Dark Light, Dazzling AXNODR Challenge , Ezio and Guards, The Cooler Dilemma 1, The Cooler Dilemma 2, Average Array, Is the Score Consistent, Good Quality Bulbs, Positive Products, Expiring Bread, Lunchtime, Mario and Transformation, Buckets Full of Candies, Mario and Bullet, Pair Pain, Palindrome Pain, Admins and Shopping, Water Requirement, Police and Thief, Jenga Night, Candy Distribution, Bob at the Bank, Chef and Happy String , Equalizing Numbers, Six Friends, Best Coupon, Pseudo Sorted Array, Compress the Video, Who is taller!, Presents for Cheffina, Easy Permutation, Chef and Wire Frames, Array Equality, Chef and Chapters, Chef and Bird farm, Pushpa , Farmers League, Game of Pooks, Doubled Distances, The Mango Truck, Roller Coaster, Beat the Average, Laptop Recommendation , Infernos, Maximum OR Minimum, Closest Vowels, Sugarcane Juice Business, The Attack of Queen, Football Cup, Miami GP, Chef gives Party, Get Subscription, Good Pairs, Dominant Army, Circular Track, Difficulty Rating Order, Practice makes us perfect, Maximum Pairwise Modular Sum, How many unattempted problems, Recent contest problems, Problems in your to-do list, My very 1st contest!, A or B, Xor Palindrome, Even Equal Odd, Chess Ratings, Score High, Total Prize Money, Make them Zero, Degree of Polynomial, Doubt Support Availability, Whatsapp Messages, Take discount or Not, Is this priority or parity!, Path Parity, Determine the Winner, Simple XOR, The two numbers, Rating Improvement, Playlist, Break the Stick, First and Last, Expected move, Minimum or Maximum, Divisible by 3, How Many Maximums, Age Limit, Equal Distribution, Minimum number of Flips, Chairs Requirement, Subscriptions, Divisible by i , Possible GCD, Alternate Additions, Equal Strings, Zero Ones Equal One Zeros, Burgers, DNA Storage, Distinct Palindrome, Joining Date, Waiting Time, It is My Serve, Too many Floors, Determine the Score, Maximize Difference, Equal by XORing, Dense Bracket Sequence, Biryani classes, Air Hockey, The Attack of Knight, Jogging, Count the ACs, Make all equal using Pairs, AP Grid, Complementary Strand in a DNA, Reversal Sorting, Fitness, Prime Xor, Strong Elements, Chef and his Apps, Best of Two, Retrieve the Array, Adjacent Sum Parity, Change Row and Column Both, Bidding, Enough Space, Permutation And Median, K-MEX, Xor Permutation, Chef Drinks Tea, High Accuracy, Journey of the Knight, Sort the String, Counting Words, MATH1 Enrolment, Group Assignment, Game of Piles Version 1, Slow Solution, Pass the Exam, Chef and Candies, Chef On Date, Copy and Push Back, Similar Heights, Construct N, End Sorted, Minimum Coins, Chess Time, Buy Lamps, Fill The Grid, Passes for Fair, Fill Candies, Make Palindrome 2, Interior Design, The Last Levels, Easy Pronunciation, Yet Another Palindrome Making Problem, True and False Paper, Largest Family, N Buttons 1 Bulb, Chef in his Office, To Divide or Not To Divide, Sum of Product 1, Insurance, Hungry Chef, Split The String, High Frequency, Is it hot or cold, Maximise the Tastiness, Valid Minimum, Permutation GCD, Discount, Mileage matters, Nearest Court, Average Permutation, Split N, Final Population, Different Medians, TV Discount, Dominant Element, Sale Season, Hello Equation, Two Trains, Maximum Submissions, Make A and B equal, AI Analysing Code, Minimum Sum, WA Test Cases, Air Conditioner Temperature, Height of Rationals, Car Trip, Greater Average, Odd Pairs, Make A and B equal, Weights, Equal Distinct, Number of Credits, Ticket Fine, Team of Two, Balls and Boxes, Permutation Clear, Fever, Mean and Median, Broken Phone, Interesting Subarray, Good Pairs, Nearest Exit, Chefland Games, Maximize Colours, Far Away, Sleep deprivation, Flip the cards, Equalize AB, Permutation Creation, Maximum Expression, Even Splits, Non-Negative Product, Two Different Palindromes, Break the elements, Ranklist Pages, Reach the Target, Remove Bad elements, Suspense String, Confusing Concatenations, Audible Range, Expert Setter, Speciality, Podium Finish, Minimum Pizzas, Building Race, Single Operation Part 1, Single Operation Part 2, Yet Another Palindrome Problem, Tax in Chefland, Paper Cutting, Palindrome Flipping, Card Removal, Minimise LCS, Different Consecutive Characters , Subarray Removal, Reach on Time, Odd Sum Pair, Sorted Substrings, Final Sum, X Jumps, Max minus Min, Test Score, Packing Books, Avoid Squares Please, Distinct Colors, Water Consumption, Time Complexity, Water Mixing, Good Turn, Chef and Prefixes

May Challenge 2012: 

Jewels and Stones, Lucky lucky number

April Cook-Off 2014: 

Snape and Ladder

July Cook-Off 2014: 

Copy-Paste, Sum Queries

April Challenge 2014: 

Counting Matrices, Farmer Feb, Chef and Digits, 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

August Challenge 2014: 

Mountain Holidays 2, Little Elephant and T-Shirts, Chef and Reversing, The Leaking Robot, Chef and Gift

September Challenge 2014: 

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

October Challenge 2014: 

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

December Challenge 2014: 

XOR with Subset, Chef and Apple Trees

CodeX 2014: 

Sum Up

aBaCUS'14: 

Help Ram

May Challenge 2015: 

Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe

July Challenge 2015: 

Na2a and lucky stone, Chef and Cube

June Challenge 2016: 

Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Chef and cities, Devu and an Array

October Challenge 2016: 

Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs

February Cook-Off 2017: 

Download file, Cooking Game

Past INOI Problems: 

Triathlon, Calvins Game, Free ticket

May Challenge 2017: 

Chef and Sub Array , Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers, Chef and Subsequences

June Challenge 2017: 

Chef and Prime Queries, Saboteur (Challenge), A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

July Challenge 2017: 

Chef and Sign Sequences, Pishty and tree, Tree Expectancy, Whats in the Name, Servers (Challenge), Calculator , IPC Trainers

August Long Challenge 2017: 

Chef and Rainbow Array, Chef And Fibonacci Array, Chef and Mover, Palindromic Game, Greedy Candidates, Strings and Graphs

November Challenge 2017: 

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

July Lunchtime 2017: 

Find the Maximum Value, Good Pairs

November Lunchtime 2017: 

Smart Strategy, Shuffling, L-R queries

May Lunchtime 2019 Division 1 (Unrated): 

Grid Tour, Reverse Maximisation

June Challenge 2019 Division 1: 

Lent Money, Count Arrays, Chef and Ingredients, Chef and His Dish, Intersecting Paths, Sum and GCD, Forgotten Tree 9, (Challenge) SnackDown 99

July Lunchtime 2019 Division 1 (Unrated): 

Delete a Subarray, Professor on a Trip, Two-lane Road

August Cook-Off 2019 Division 1: 

Warriors, Rich Substrings, Two Circles

August Lunchtime 2019 Division 1: 

Equal Average, Destroy Cells, Chef Does Coke Yet Again

October Mega Cook-Off 2019 Division 1: 

D-Value, D-Or

Coderation - Inter IIIT Coding Contest: 

Again Primes, Rolling, Salad, Special Polygon (Challenge), Club Formation, The Robin, Battle of Winterfell

Alkhwarizm (Rated for all): 

Arya and the Grid of Stars, Winter Is Here, Weirwood Trees, Danny Wants To Know

Code Melange (Rated for all): 

Misplaced Signs, Greg and Grid, A Small Array, Go Round, Some Impact, Longest Xommon Subsequence, Subset Numbering, Max power

Keteki QuickMatch 14: 

Sort Count (keteki), Swap Sort (keteki)

CodeX_X: 

May The Force Be With You, Free Candies For Everyone!, Marcus And The Special Sequence, Venkat And His Commute

Null Void: 

Chef and Travel, Chef and Chess, Yeh PUBG waala hai kya, Análisis de devansh, Ross and DFS, The Travelling Students

Keteki Power Match: 

Common Words (Keteki), Large Gcd (Keteki), Chaay Lover (keteki)

Keteki PowerMatch 2: 

Ketu and Petu, Chef Loves Numbers, Ketekon and Chips

Encoding Aug'19: 

Nuttela needs a little help, Save Konoha, Gcd vs Lcm, Lazy Chozi, Prajit and bits, Alein invasion by NASA, Nuttela Needs a Little More Help, Nuttela loves cakewalk, Nuttela loves trees !

Cypher August: 

Jillu and Easy Matrix, Parking Lot, Precious Pots of LPU, Easy One!, k Deletion

CodeHard: 

Ganesh Impresses Jojo, Game of Bullets, Gaithonde owns a new home, SATYUG RAHASYA, Gaithonde Leaves Aashram, Sartaj drinks gotchi

Fall For Code 2.0: 

Gandhian Series, Gandhiji Four Monkeys, Prisoners and Parity, Gandhiji and Names, Freedom Fighter, Nehru Gift, K Halves

Exun Programming Prelims 2019 (Rated for all): 

Weird Modulo Problem , Tennis Tournament, Chipped Tree, Yet Another Partition Problem

Enigma-OLPC: 

TENET

UWCOI 2020 (Rated for all): 

Button Pairs, Base Plans, Peak Finding, Blocks, Mercury Poisoning

RECode 12.0 (Rated for all): 

Chef and String, Chef and Walk, Chef and Rotation, Chef and Or, Chef and Subsequences, Chef and Numbers

Coders' Legacy (Rated for all): 

Chef vs Doof, Doof on Cartesian, Doof fires Brackets, Jeremy gets a gift

push_back(1): 

IGNORE IT, REMOVE IT

Bug Crush 2.0: 

BugCrush 2 Question 1, BugCrush 2 Question 2, BugCrush 2 Question 3, BugCrush 2 Question 4, BugCrush 2 Question 5, BugCrush 2 Question 7, BugCrush 2 Question 6

Code Wars Round 1: 

Ameesha Loves Candy , Questival, Diagon Alley

August Challenge 2021 Division 1 (Unrated): 

Olympics Ranking

SnackDown 2021 - Online Qualifiers: 

Lucky Number

SnackDown 2021 - Online Round 1A: 

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

November Challenge 2021 Division 1 (Unrated): 

Weird Palindrome Making

January Long 2022 - I, Division 1 (Unrated): 

Keplers Law, Sequence Master, Prime in a binary string, Retrieve back the Array, Covid Spread, Chef and Riffles

CP Titans 1.0: 

Spider-Man Met Kangaroos, Jumping Spider, Running Spider-Man, Spider-Man Collects Chocolates (Easy Version), Spider Set

Starters 96 Division 1 (Rated till 5 Stars): 

Swap the numbers, Remove Stones, Mex Array

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