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Practice Problems (2463):
Practice:
Prime Generator, Transform the Expression, The Next Palindrome, Factorial, Small factorials, Pouring water, Marbles, The Burning City, Ordering the Soldiers, The Turing Music Box, The Game of Crosses & Crosses, Bytelandian gold coins, Enormous Input Test, Sums in a Triangle, Simple Sorting, GCD2, ATM, Some More Homework, A Christmas Pizza Puzzle, Johnny and the Beanstalk, Paying up, SudokuX, Place the mines!, Life, the Universe, and Everything, A Very Easy Problem!, Squash the Bugs, Paying up, The Lucky Draw, Pack the balls in a box!, Team Selection, Quadratic Equations, Lights Off, Revisited!, Golf course, Se7en, A Bowling Game, Sum of pairs, Prime Palindromes, The Lead Game, Permutation Cycles, Discrepancies in the Voters List, Modulo, The N Queens Puzzle Revisited, The Best Box, Palindromic Numbers, Anagram, Binomial Coefficient, Palindromic Subsequences, Treasure Hunting, Array Transform, The Black and White Knights, Robot Game, Summing Slopes, Yet Another Number Game, Flipping Coins, Multiples of 3, Gravel, Adding Least Common Multiples, Ripple-Carry Adder, Randomly Testing Circuits, Count palindromes, Arranging the Appetizers, Baking Cupcakes, A Simple Equation, Product of Digits, Birthday Candles, Cooling Pies, Holiday Trip, Ballons in Box, Chess Pushing Game, N Knights Problem, One Dimensional Game of Life, Cutting Recipes, Pairing Chefs, Count Relations, Milestones, Coloring Colorable Graphs, Three Way Communications, Cutting Rods, The Route, Mobius Multiplications, The Key, The Mother-ship, Rectangles Counting, Parade, A Prime Conjecture, Chef Teams, Billboards, Correctness of Knight Move, Most Popular Friend, Infinite Grid Game, Open the Dragon Scroll, Hotel Bytelandia, Pattern, Across the River, Divisor Sum, Lucky Days, Generalized Arithmetic Progression Free Sequence, First non-Palindrome, Sum of Factors, Arithmancy, Calendar, Houses and Restaurants, Lucky Sum, Lucky Array, Ciel and A-B Problem, Dynamic GCD, Lucky Long, Card Shuffle, Zeta-Nim Game, Home Delivery, Count of Maximum, Spoon in Matrix, Fit to Play, Daily Train, Change of base, Is it a tree, Jewels and Stones, Little Elephant and Strings, Stacking Pancakes, Connected Components, String encryption, Little Elephant and Candies, Little Elephant and Movies, Top Batsmen, Remember the recipe, Lights, PRIME, Little Elephant and Exams, Little Elephant and Bombs, Little Elephant and Lemonade, My Fair Coins, The Gray-Similar Code, Little Elephant and Bubble Sort, Arranging Cup-cakes, Event Organizer, Closing the Tweets, Connecting Soldiers, Matchsticks, Range of Data, Delivery Boy, Racing Horses, Ciel and Receipt, A Game of Thrones, A Wonderful Chocolate, Annual Parade, Codechef Password Recovery, Code Crazy Minions, Granama Recipes, Coin Flip, Carvans, Buy1-Get1, Book Exercises, Tourist Translations, N Queens, Little Elephant and Permutations, Buying Sweets, Equalization, Rat Maze, The Minimum Number Of Moves, Arithmetic Progressions, Pizza Delivery, Triangular Queries, Tree Counting, Expected Greatest Common Divisor, Root of the Problem, Packaging Cupcakes, Chef of the Year, Climbing Stairs, ChefGame, Count the Words, Observing the Tree, Approximately, Queries on tree again!, Three Different Numbers, Dyslexic Gollum, Physics, Find Minimum Distance, Palindrome, Level Of Difference, Hello Hello, Prime or not, Fire Escape Routes, Almost Prime, Helping Lira, A OR B, String Query, Your Name is Mine, Field Trip, Save The Princess, Andrew and the Meatballs, Andrew and the Strings, Mountain Holidays, Galactik Football, Andrew and the Meatballs again, The Probability Of Winning, Lapindromes, Furik and Rubik and Sub Array, Subtraction Game 2, Chef and Walking on the rectangle , Chef and Segments, Chopsticks, Counting The Important Pairs, A Plus B Again!, Maxim and Dividers, Sereja and Commands, Count K-Primes, Attic Crossing, Number of Factors, Sereja and Graph, Sereja and Transformation, Deleting numbers, Prime Distance On Tree, Chef and Integers , Splitting Candies, CAO Stage-3, Sorting, Chef and The Right Triangles, Counting D-sets, Game Of Thrones, Polo the Penguin and the Numbers, Uncle Johny, Girl Friend and String Gift, Polo the Penguin and the Tree, Lucy and Palindromes, Chefs in Queue, ATM, Help Ragetti, Number Mirror, Am I a Fibonacci Number, Lowest Sum, List Editing, Magic Pairs, Reign, Rectangular Queries, Chef and Favourite Sequence, Mike and Task Packages, Counting Matrices, Merging Files, Bon Appetit, Chef and Girlfriend, Chef and Feedback, Longest Common Pattern, Farmer Feb, Chef and Shop, Chef and String, Chef and Numbers, Compilers and parsers, Walk, Maximum number, GCD condition, The Street , Counting Bits, Coprime Pairs, Sherlock and Inversions, Missing Number, Chef and Remissness, Enter the Matrix, ABC-Strings, 3-Palindromes, Chef and Graph Queries, Easy Tiling, Chef-jumping, Chef and Digits, Alok-nath and His Sanskars, Little Elephant and T-Shirts, Dividing Stamps, Divide the Tangerine, Chef and Reversing, Chef and Frogs, Chef and Chain, Chef and Digit Jumps, Chef and Rainbow Array, Sereja and Equality, Chef and Rainbow Array - 2, Chef and Subarray, Chef and Bracket-Pairs, Shortest Path in Binary Trees, Divide the Cake, Ups and Downs, Stone, Two Companies, Count Substrings, Count Sequences, Count Substrings, Guessing Game, Permutation Shuffle, Divisible Subset, Addition and Multiplication, Forgot Password, Maximizing Marks, Game of Numbers, Queries on the String, Counting Flags, Knapsack Problem, Sherlock and the Grid, Substring Query, Coprime Triples, The Smallest Pair, Dynamic Inversion, Subarray GCD, Subarray LCM, Fibonacci Numbers on Tree, And Operation, Shift The String, Lowest Common Ancestor, Copy-Paste, Sum Queries, Chef and Gift, Chef and Array, Fun with Rotation, Divide or die, Children Trips, Chef and Strange Formula, World War 2, Tanu and Head-bob, Union on Tree, Jam, Sereja and Permutations, Chef and easy problem, Chef and easy problem 2, Chef and medium problem , Chef and medium problem 2, Spiderman and Jumping, The Dirty Path, Distinct Characters Subsequence, Chef and Red Black Tree, Chef and Notebooks, Tree and Queries, XOR with Subset, The Problem Set, Launch Tower, Let us construct palindrome, Chef and a great voluntary Program, Chef and Churu, Player, Course Selection, Ground Stations, Mangalyaan-2, Mahesh and his lost array, Sereja and Salesman, Three elements, Chef and Apple Trees, Cascading Style Sheets, Discount on crackers, Covering Sets, Brackets, Chef and Keyboard, Chef and Problems, Chef and Stones, Zombinatorial, Parenthesis with Maximum Sum Subarray, Special Shortest Walk, Domino Solitaire, Charlie and Prime Numbers, Billiards, Sereja and Votes, One Dimensional Kingdoms, Xor Queries, Delivery Man, String Matching, Drawing Contest, Sequence Containment, Interview Scheduling, Good Joke!, Fit Squares in Triangle, Piece of cake, Matryoshka Dolls, Jersey Number, Gabba sprint, Gcd Queries, Anup at Amrithapuri, Let us play with rank list, Not Palindrome, Chef and Interview, Message Typing, Chef and Strange Operations, Lucky Four, Twins and kids island, Sweet Deal, Broken Telephone, Median, Chef and His Friend, The Imitation Game, Interstellar, Enemy at the Gates, Andrash and Stipendium, Chef and Memory Limit, Chef and Prime Divisors, Exam, Little Party, Set Difference , ATM, Palindromeness, REVERSE, Lucky and Arrays, Equality, Version Control System, Prime Palindrome Sum, Euler Totient Function Extended, Tickets, Chef and Friends, Bank and vulnerable passwords, Counting Primes, 3D Queries, Counting on a directed graph, Strange Race, Laboratories, King test to his sons, Accommodating tribal clans, Save the kids, Unlock Secrets or Leonardo, Teaching binary to a child, Annual Sports Day, Chef and String, Find Missing Number, Rohith and Circles, Chef And Hungry Birds, Add Two Numbers, 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, Nikhil and Commands, Arush Challenge, Primality Test, Finding Square Roots, The Block Game, Farmer And His Plot, Wrong Answer, Chef and Dolls, Chef and his Sequence, Merge Sort, Nikitosh and xor, Number of Ways , Devu and friendship testing, Entrance Exam, Cops and the Thief Devu, Maximize Disjoint Pair Sum, Path containing K Nodes, Time measure, Chef and Table Tennis, Strange operations, Chef and Bitwise OR Operation, Chef and Two Strings, Greedy puppy, Puppy and game, Chef and Sets, Race Time!, Dividing Machine, Chef and insomnia, Chef and Segments, Who dares to be a millionaire, Chef and Rectangle Array, Receipt Recovery, Forgotten Language, Cracking the Code, Spheres, Chef and the Cards, Chef and the XORed Number , Chef and the Number Sequence, Churu and lost string, Chef and the Wildcard Matching, Capital Movement, Make Palindrome, Minimum Maximum, Pattern matching, Sum of palindromic numbers, The 8-Queens, The Gift Of Raksha Bandhan, Super Numbers, Chef And Operators, Jump mission, Simple Sum, Stacks, LuckyLand Lottery, Cyclist Race, Plane Division, Chef and cakes, Period on tree, Decompose the Tree, Max Subarray GCD, Mahasena, Factorial to Square, Chef-Detective, (Challenge) Chef and Palindromes, Processing a string, Exam results, Matrix Maximum Sum, Check Divisibility, Falling Rocks, Mutated Minions, Jimma and Chingam, Ancient Berland Roads, Chef and Destruction, Matched Brackets, Wormholes, Video Game, Distinct Codes, Black And White Cells, Palindromic substrings, Sereja and Pairs, Prime or Not, Chef and Cycled Cycles, Magical Strings, Jalebi Bai and Decks of Sweets, Chef and Pick Digit, Chef and Time Machine, The making of a cake, Chef and Subarrays, Chef and Queries, Chef and Tree, The Revenge of Jalebi Bai, Wait for it, Save The Trees, Circles and Squares, Jump on Buildings, Chota Mouse and his birthday cake, Product of two numbers, Longest Common Subsequence, Bubble Swap Count, Chef and Fruits, Dabur Honey, Traffic Count, Social Network, Malvika conducts a Programming Camp, Malvika is peculiar about color of balloons, Animesh practices some programming contests, Praveen falls from a tall tree, Animesh decides to settle down, Animesh does not gift Malvika on her birthday, Malvika gets bored along with her Cats, Crazy Malvika discovers Crazy Fibonacci function, Monika And Song, Jumble Dumble, Chef and digits of a number, Digital clock, Learn Segment Tree, Strange Functions, Alternating subarray prefix, COC battle, Largest Number, Faded Palindromes, Gift and Chef, Chef and Socks, Chef and Dominating Subarrays, Chef and math, Puppy and Board, Chef and Coins Game, Puppy and Sum, Chef and Chocolate, Chef and Ballons, Chef and cities, Saddle Point, Rain Water trapping, The Inversions, Forest Gathering, Two Closest, Simple Statistics, Get AC in one go, Asya & Beautiful Strings, Ada and crayons, Chef And Magical Path, Range Modulus, Golu and url shortner , Cab Service, Agent Chef, Chef And Coloring, Maximum K Sums, Decode, Multiuser Environments, Summer Internship, Help with distances, Probability, Vasya and Little Bear, PrePre, Movie Weekend, Odd Divisors, Queries on a Binary Tree, Polygon, Daddy and Chocolates, Cats and Dogs, Chef and Big Soccer, Laddu, Coins And Triangle, Misha and Geometry, Akhil And Colored Balls, Chef and special numbers, Tandem, Devu and an Array, Evaluate the polynomial, Kitchen Timetable, Better Maximal Sum, Floor Division Game, Sticks, Right Triangle, Chef and Sad Pairs, Robot Walk, Sharing Candies, Fair Pairing, N different palindromes, Different Neighbours, Chefland and Electricity, Alliances, Dividing into Regions, Chocolates for Everyone, Collisions, One more weird game, Jealous Numbers, Range Minimum Queries , Chef and Mover, Maximum Grid, JosephLand, Task Distribustion, Chef and Proportion, Chef and Numbers, Chef and squares, Theatre Square, Building Permutation, Tweedle-Dee and Tweedle-Dum , Pattern Craft, Drumpf for President!, So Close Yet So Far, If - Else Problem, Digit Longest Increasing Subsequences, Studying Alphabet, Pascal Triangle, Sorting Tool, Completing favorite game, Take Turns, Kth Max Subarray, Sahil The Anime Lover, Mahasena , Asya & Happy Pokemons, Lazy Jem, Zack And The Handkerchieves, Find The Factos, Chef and Bike, Chef and Digits, Coldplay Concert, Batman v Superman, Find The Digits, Pattern, Prime Numbers, Watson asks Does Permutation Exist, Luther and Brackets, Euron Problem, Chef and Roads, Minimum Cost Walk, Longest Increasing Subsequence, ChefWatson uses Social Network, Task for Alexey, Increasing Subarray, Help Lost Robot!, Watson and Digit Sums, Colorful Grids, Robolympic Batons, Chef and Bipartite Graphs, Graph Partition, Counting Lights, Query On Strings, Download file, Kirito in labyrinth, Proper Divisors, Test the Year, Pythagorean Triplet, Fibonacci, Prime Numbers, Remove Duplicates, Advanced Cooking Machine, Fluffy and Contest Scores, Fluffy and Typing Password, Tree Height, Maximum Xor Query, Visiting Friends, Chef and his Students, Tom & Jerry, Parhi And Multiplication, Chef and Subset, Chef and Queries, Timestamps, Sweet Shops of Kolkata, Coal mines of Kharagpur, Coal Mafia and Toll Tax, Cookie Flavors, Birthday Pizza Party, Alice and Bob play Contact, ATM queue, Mancunian Hoards Black Money, Bob vs ATM, Extreme Encoding, Divide Me Please, Precious Stones, Mr Wireless, Quentin Tarantino, Jumping Frogs III, Reservior, Rabbits and Carrots, Gajju Bhai is hungry, Nothing in Common, Digit Longest Increasing Subsequences 2, Sum of distances, Captain Virat and His Strategy!, Xenny and Alternating Tasks, Transpose Matrix, Bear and House Queries, Next Permutation, Bear and Extra Number, Bear and Milky Cookies, Chef and Divisor Tree, (CH) Bear and Sorted Rows, Bandwidth of a matrix, Bear and Oveflow Points, Number Tower, Maximum of Three Numbers, Second Max of Three Numbers, Chef and Array Update, Easy One-Electricity Bill, Rainbow Graph, Increasing Xor Sequence, Golu and Sweetness, Safe Robot, Logan and DIGIT IMMUNE numbers, Bear and Ladder, Stable market, Pishty and tree, BST Operations, Bear and Row 01, Similar Dishes, Max Out, The query problem, An Apple a day, Bear and Candies 123, Bear and AB, Factorial Problem, Raman and The Bucket Challenge, Minimizing the dot product, Bear and Segments, Bear and Segment 01, Chef and his daily routine, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences, A Good Set, Triplets, Snake Procession, Chef got Recipes, Hussain Set, Prefix Inversions, SubInversing, Hasan and boring classes, A temple of Snakes, Is It a Snake, Prefix XOR, Sticks, Knight Covering, SnackUp, Add or Multiply, Maximum Unique Segment, Two Numbers, Chang and Bitwise OR, Hit the Coconuts, Chef and Isomorphic Array, Whats in the Name, Calculator , Boss and his Brother, Good Pairs, Travel to all Points, Divide the Set, Palindromic Game, Mathison and the Dynamo shuffle, Difference array, Real obtuse, From heaven to earth, Product on the segment by modulo , Mathison and pangrams, Max Mex, Broken Clock, Weird Competition, Queens Landing, Little Chef and Sums, Counter Test For CHEFSUM, Fast Exponentiation, A Balanced Contest, Alien Language, Chef and Cook-Off Contests, Polynomials, (Challenge) Connecting computers, Very easy problem, Divide and Multiply, Modular GCD, Chef and Employment Test, Buggy Calculator, Minimum SubArray, Maximum Number, Periodic Palindrome Construction, Obtain Desired Standard Deviation, Compression Algorithm, Villages and Tribes, A tale of two trees, Days in Month, Strange Function, J - Reached Safely Or Not, E - Password Riddle, Fibonacci Series, K Fibonnaci, A - Appearance Count, A humongous Query, Skiing, Random Pair, D - Triangle Count, G - Palace of King, L-R queries, Chef And his Cake, Lucas Theorem, Chef And Easy Xor Queries, Method Resolution Order, Four Friends, Penalty Shoot-out, Chef And Land Labeling, Good and Bad Persons, SAD Queries, Uniform Strings, Pishty and Triangles, Generating A Permutation, Optimize The Slow Code, Reverse the Number, Football Match, Large Sum, Coder Life Matters, Poetic word, K-Concatenation, Maximum Score, Rectangle, String Merging, Minimum Maximum Partition, Hello World, Caesar cipher, Multiple of 3, Smallest To Square, Multiply the Array, Geometric Progression Triplet, Max Subarray (keteki), Chef And His Characters, Chef and Escaping from the Labyrinth, Survive in ChocoLand, 4 Cycle, Chef and odd queries, N-QUEENS, Celebrity In Trouble, Mighty Friend, Chef and Easy Problem, Car-pal Tunnel, Cutting Plants, (Challenge) Biased Committee, A Big Sale, Chef and Cook-Off, Chef and Tuples, Chef and Line, CAPTAIN M & ARMY, Smaller than the element, Chef and Apples, Euclid in Manhattan, Game with numbers, Jumping in the hills, Electron Base, Mix the Colors, Chef and Glove, Series Sum, Minions and Voting, Minion Chef and Bananas, Spiral Matrix, Help Voldemort, Chef Goes to the Cinema, Chef Chooses a Subset, Chef Judges a Competition, Change the Signs, DP Made Easy, Rahul and his encryption, Magic Elements, Fibonacci String, Counting is life, Minimum Deletions, Workers, Good-Bad Pair, The Deadly Sin, Candy Love, Chef and Replication, Convergence, Cut the Board, Two vs Ten, The hardest gcd problem, Fast forward travelling, Darts, The Last Digit, Rubber Band, Dibs on Fibs, Sum on Tree, Best Cake Ever, Secret Recipe, Archi and Tree, Binary Board, Naive Chef, Trace of Matrix, Count Substrings, Nearest Angle, Weak in the Middle, Fill the Truck, Code Stats, Family Tree, 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, Prime Numbers, Archi and Comparsion, Problem Sort, Mean Array, Deciding University, Changing Numbers, Summary Power, Counting Pretty Numbers, Tree Query, Strike or Spare, Chef and Market, Encoding Message, OR Matrix, Safe Partition, Split Stones, Chef and Secret Ingredient, Chef and Bored Games, Sheokand and Number, Playing With Numbers, The Array Problem, Walk on Tree, Action Beam, The Great Run, Kill them with your success, Algebra Score, GukiZ and Candies, Mixi Game, Magician versus Chef, Easy Problem, Balsa For The Three, Sacred Game, Chef and Eid, Chef and Adventures, Ada School, Leap year, Bad Shuffle, Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Serves, CRYPTOGRAPHY SYSTEM, ATM Machine, Make a Permutation, Max-digit Tree, Rat in the maze, Judging Delay, Biased Judgement, Opposite Cites, Chef Restaurant , Match the Streams, Spread the Word, Qualifying to Pre-Elimination, Chef and SnackDown, Chef and Semi-Primes, Chef And Sums, Ada and the Staircase, Ada Function, Pumping Water, Chef and Card Trick, A Game of Robots, Reduction Game, Appy Loves One, Three Friends, Coloring the Grid, Chef and Two Queens, Truth and Dare, Beautiful Garland, A-B Game, Colorblind Feast, Directing Edges, Chef and Interactive XOR, Chef and Interactive Contests, Event, Lighting Rectangle, Adi and the Matrix, Adi and the Tree, Partition the Graph, Maximise the Sum, Lucky Number Game, E - Make it Zero, Count Periodic Numbers, Play Piano, 1-2 Game, Pseudo Sorting Algorithm, Subset Sums Revisited, A - Even Odd subsequences, Life Limited, Autonomous Cars, Three Strings, Prefix Numbers, Magic School, Beauty of Konoha, Get a Bucket of Water, What is the Cost of Reading, Josephus Again, Absolute Difference Sum, Yet another shortest path problem, Yet another expected value problem, Valid Stack Operations, XOR! Wait for it, Palindromic Walks, Is it a Cakewalk Problem, Martingale, Print Pattern, D - Balanced Parenthesis Substrings, Ross goes for Shopping, Summation over nCr, Alien Invasion, Sauna Cred, Sherlock and His Device, Find Best Path, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, Kutty and Passwords, Shivigawdz, Grouping them right!, Ada Rooks, Prime Factors and Ranges, The Nights Watch, Bus Station, Chef and Magical Jars, Chef and Secret Ingredients, Xor Decomposition, Appy and Contest, (Challenge) Chef with Orchestra in the Kitchen, Man with No Name, Art of Balance, Chef and Strings, Lucky Number, Zombies and Magic!, Hex Prime, Max Range Queries, IPL and RCB, Game of Chef, An Easy Problem, Buying New Tablet, Chef and Party, The spy machine, Chef and Number Game, Beginner, Average Number, Chef Challenge, Yet Again a Subarray Problem, Even Odd, Large Factorial, Kira Loves Palindromes, Square Roots, Range Sum Problem, Playing With Strings, Maximize, Hello World, Subarray, XOR N-bonacci Sequence, UEFA Champions League, Playing with Numbers, FlatLand, Music Shopping, Maximum Remaining, Earning A Profit , Fencing, Corrupted Seven-Segment Display, Testing Robot, Pogo Stick Competition, Partition into Permutations, Game of Theory, Go Round, Some Impact, Subset Numbering, Max power, Solve The Case, Making a Meal, Mystery Tree, Snake and Apple Tree, Chef Learning Hungarian Algorithm, Chef and Good Subsequences, Reduce to One, Guess My Age, Attendance, Fast Food, Chef and Ingredients, Chefina and Ranges, Encoding, Calculate Deposit, Sum and GCD, Friend in Need, Bitsetbaba and Power Grid, Dummy Palindromic Strings, Reverse Maximisation, CV, XOR Magic, Dilemma, (Challenge) SnackDown 99, Chef and Distinct Numbers, Chef and DAG, Raghu Strings, Nice Subsets, Maximum and Minimum, Equalize, Chef and Gordon Ramsay, Eat Twice, Hard Sequence, Magda and Silly Pairs, Gii and His Club, Football, Distribute Apples, Zombie and the Caves, Playing with Strings, Expected Product, Fuzzy Linear Combinations, Delete a Subarray, Professor on a Trip, Easy Math, merge sort, A - Books, B - Candy Love, Chef and Maximum Star Value, Smallest Beautiful Number, Chef and Dynamo, C - Chef and Maths, Save Konoha, Gcd vs Lcm, Warriors, Prajit and bits, Rich Substrings, Chef and Interesting Subsequences , Gaithonde Leaves Aashram, PERFECT NUMBER, Plus Multiply, Count the K-tuples, Array Modification, Bits Magic, Inversions in an array, Sugar Rush, PLAY WITH MATRICES, (Challenge) Maximizing LIS, Operations on a Matrix, Phone Prices, Playing with Matches, Weird Modulo Problem , Faulty System, Tennis Tournament, Student of the year, Children and Candies, Winning Ways, Weapon Value, Chef and Minimum Colouring, Pen Pineapple Apple Pen, Colliding Balls, Beautiful Partitions, Discount in a Shop, Awkwardness Minimization, Medel, Select Training Set, Nuttela Path Unit, Naruto Run, Printing Pattern using loops, Dinosaurs Football, How much Scholarship, Fibonacci Inspiration, Xor Segment, Odd Topic, Balanced Brackets, Chef Diet, Team Trees, Special Graph Construction, That Is My Score!, Pizza or Broccoli , Nth Fibonacci Term, Train or Walk, Substring Matching, Maximize Diversity of an Array, Beauty and The Array, B - Prime-partite Graph, IPL Begins, Inverse Knapsack, Game on Tree, Telephone Network, Coloring Intervals, Ada Bishop 2, Safe Robots, Breaking Bricks, Change It, Usain Bolt vs Tiger, Walk 4 steps, Minion AND Range, Sufficiently different string, Counting Mobiles, The Evil Professor, Expected Candies, Stupid Machine, Check Algorithm, Frequency Function, Guess the number, Ruman and Pull Requests, Chef and String, Strange Number, Chef Chick, Maximum Subsequence Sum, Squared Subsequences, Sky Watching, Donation, Devotee of god, Bitwise Operators, Exploring Undiscovered Planets, Recruit Villagers, Balancing Network Revisited, Range AND, Chefu and Tiles, Psertu in Byteland, Pongal Bunk, Lasers Everywhere, Buying a New String, Ready Bitwise, Construct Array, Chef and Street Food, Under the Tunnels, Inverse of a Function, Island Count, Chefina and Swaps, (Challenge) Raisins, XOR Game, Prefix sum, 1 - Nights Watch, Check Prime, Chocolate Day, Valentines Day, A Leisurely Journey, Button Pairs, Joined Subarrays on Tree, A - Tom & mouse traps , Find maximum in an Array, Chef and Stocks, Painter Problem, At the Gates, Monsters Battle, Unit GCD, Find Your Gift, Maximize Letter Beauty, Paleontology Museum, Escape the Tree , A lot of cars, Cool Subsets, Coronavirus Spread, Sell All the Cars, Naruto and Rectangles, The Typist, The idols of MahaBaleshwar, Chef and Squares, Harry and chocolates, Lift Requests, Missing a Point, Snacks, Balls, Find Number From Factorial, Bob wants Cookies, Chef learns Statistics, Maximum AND, Greedy DD, Triangle Query, Another Birthday Present!, Positive Mex, GCD OF TWO NUMBERS, SIMPLE MODIFICATION, GODFATHER, Chef and Numbers, Monty Hall Paradox 2, Isolation Centers, Chef in Fantasy League, Luffy The King of Pirates, Creating New Mathematical Tasks, COMP4204 Lecture, Minimum Spanning Tree, Chef and Recipe, Roads in Chefland, Bharat and Possibilities, The Tom and Jerry Game!, Lord Ram and XorOrXorOr Power, The Delicious Cake, Play with 2D Array, Quick Sort, Doctor Chef, Weird Walk, Lost Weekends, Zaikia and sticks, Venkatesh is bored, Chef and Price Control, The Game, Minimum Cards, Cache Hits, Per Capita Income, A Problem on Sticks, Banned Quotient, Chef vs Doof, Distribute Candies, Ish and String Game, Increasing Decreasing, 1 - Cakezoned, Pattern printing, MEX-ception, The In-XOR-able Task, Even-tual Reduction, OR-thodox Distinction, Path-etic Products, I Hate Symbo-LIS-m, Unique Substring, Cherry and Bits, Priya and AND, Panic! at the Disco, Chef Wars - Return of the Jedi, Another Card Game Problem, Find XOR, Dr Phil goes to the ranch, Sudhanva and Books, Coloured Pairings, Binary Concatenation , Chef and Sums, Smallest KMP, Linked List, Chef and Wedding Arrangements, 2 - Sums divisible by 3, 3 - Domino game, Red-blue Trees, Chef and Work, Notebook Distribution, Chefina and Swaps, Mode of Frequencies, Alien Invasion , Minimum Insertions, Bowling Strategy, GCD operations, Zenny and Simple Sum, Hybrid Spiral Cipher, Multiple Linked Lists, Positive AND, Random Knapsack, D-Dimensional MST, Restore Sequence, Nearest Strong City, Hail XOR, Chef and Easy Queries, 2D Array, By Hook or By Crook, Decreasing Srrnmieeda, Path-etic Sums, Ada and Dishes, Sum Of Array Elements, Average Median Game, Yet Another Crossover Episode, AND Plus OR, Better call Saul!, Los Pollos Hermanos, Empire Business , The One Who Knocks!, Chef and Subtree MEXs, Chef Likes Good Sequences, Red-Black Boolean Expression, Cute Chef Gift, Chef and Chocolate, Hunting Race, Segment Tree, Lost Algorithm, Multi-threading Merge Sort, Area of Largest Rectangle, Frog Sort, Frequency Array, Gold Collection, Birthday of Anabelle, Compartment Weights, Print Sub-Array, Jump & Reach, Flip the String, Chef and IPC Certificates, Hiring Workers, Armstrong Number, Gasoline Introduction, Xor Compare, Gasoline, Circle Coloring, Interesting XOR!, Polite numbers, CHEF AND LOTTERY, String Operations, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution, Self-Destructing Strings, Array Swaps, Hidden Numbers, Catch the Thief, Angry Cyborg, Cybertree, LCM and HCF, Status and Updates, Fair Elections, Minimum Attendance Requirement, Find Steps, One Zero Swaps, Maximum Value, Valid Paths, Pattern End, Bodybuilder, Chef and Division 3, Dinosaur Destruction, Encoded String, Cleaning Drive, Palindrome, TWO SACKS OF HAPPINESS, Daanish and Problems, Chef and Groups, Chef and Meetings, Chef and Divisors, Maximum Size, Find Second Largest, Domino Tiling, Prime Tuples, Chef Organizes Party, Maximum Money, Coin Game, Find Next, College Life 2, Distinct Pair Sums, College Life 5, XOR Sums, Maximise Function, Buy Please, Special Fibonacci, Help Bob! , Tree Permutations, Minimum operations, Power of 2, Chef needs Help, Chef and Tourism, Chef’s Number Puzzle, Pair Me, Binary Subsequence, Even Differences, 1 - Binary Distance, Even Sum, Minimum Coins, Lockdown, Probability , Highest Divisor, Hand Shakes, Hello, CodeChef!, Body Mass Index, College Admissions, Space Arrays, Defense of a Kingdom, Fun Maths, Thief and Police, Consecutive Deletions, PCM Dilemma, Memcached Service, Smallest Possible Whole Number, Coprime Range, Chef and Coupon, Random Walk Queries, A Special Tree, Odd Array, No Time to Wait, Water Transfer, Digitone, Pattern of Paradise, Nobel Prize, BITS and Bitcoins, Restore Array, Can You Exit The Maze, Motivation, Pawri Meme, Sort String, Matrix XOR, Weight Balance, Guess the Number, Lucky Four, Destroy the EMP Chip, Suffix Sort, Stack Of Rectangles, Possible Victory, Make the Sum Even, Birthday Gifts, Uniform, Lunchtime, Valid Pair, World Record, Strong Language, Passing Marks, Chef On Island, The Last Problem, Hiring Test, Bench Press, Lucky Boundaries, STRING MANIPULATION, B - Valentine Couples, Tree Distances, OR of ANDs, A - Save Water Save Life, Joker and Batman, Tree House, Chocolate Monger, Pizza Party, Equinox Strings, Array Rotation, Special Triplets, Charges, Xor Equality, Magical Coins, Coldplay, Hoop Jump, Modular Equation, Permutation Swaps, Solubility, Covid Analyzer, Unlock it, Rough Paper, Lucky Numbers, Guess The Day, unique_num, Pattern, InterviewRound1, Marathon, Bitwise Tuples, Tom And Jerry 1, Double Burgers, Make it zero, Bella ciao, False Number, Lazy Chef, Avinash The Mafia, Tokens On A Tree, Total Components, K-Subarrays, Summer Heat, Minimum Subtree Cover, ICPC Balloons, Chefland Visa, Richie Rich, The One On The Last Night, Chess Match, Chef vs Bharat, The Wave, Clamp Paths on Tree, Chef and Queries, Cyclic Quadrilateral, Optimal Denomination, Unpleasant Ones, Maximum Production, Chef and Pairs, Chefs Homework Dilemma, Relativity, Different String, K Path Query, Even tuples, Palindromic number, Range Array, Odd bits, pattern type-1, 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same value, Discus Throw, Bath in Winters, Wordle, Chef team, Minimum Coloring, Chef and Water Bottles, Swapping Chefs Way, Credit score, Chef and Races, Balanced Reversals, Increase IQ, Winter, Buy 2 Get 1 Free, Chef and Brain Speed, Chef and Gym, Chef and Masks, CRED Coins, Adjacency Love, The Three Topics, Alternating String, Sign Moves, Cup Finals, Group Assignment, Economics Class, Same Parity Swaps in Binary Strings, Maximize the Minimum, Binary String Cost, Volume Control, Finding Shoes, Training Plans, Geometric Mean Inequality, Flip Sorting, Avoid Alternating, Sasta Shark Tank, Rearranging digits to get a multiple of 5, Test Averages, Speed Limit Test, Bucket and Water Flow , Apples and Oranges, Chef and Chocolates, Course Registration, Sorted Distances, Digit Sum Parities, Max LCA Sum, Important Pages on CodeChef, Email Reminders, Dazzling GCD Pair, Prime Sum, Distinct Dilemma, Broken Life, The Cheaper Cab, Monthly Budget, Minimum Cars required, Non Adjacent Flips, Dark 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Contests (0):
None
Learning Paths (0):
None
Practice Paths (60):
Strings:
DNA Storage, N Buttons 1 Bulb, Wordle, Play Piano, Different Consecutive Characters , Malvika is peculiar about color of balloons, DDMM or MMDD, Chef and Happy String , Efficient PAN Linking, Studying Alphabet, Blobby Volley Scores, Lapindromes, Chef and Feedback, Chef and the Wildcard Matching
Arrays:
Compress the Video, Find maximum in an Array, Snapchat, Take discount or Not, Cost of Groceries, The Squid Game, MIN To MAX, Bomb the base, Running Comparison, Red Light, Green Light, Largest and Second Largest, Kitchen Timetable, CodeChef Streak, Difficulty Rating Order, Candies, Workers, Count of Maximum, Cops and the Thief Devu
Basic Math:
Test Averages, Fitness, Second Max of Three Numbers, 7 Rings, Chef and Chocolates, Make AP, Integers that sum to the same value, Candy Store, Minimum Number of Ones, Scalene Triangle, GCD and LCM, Sum of Digits, Favourite Numbers, Make A and B equal, Construct N, Alternate Additions, Farmer And His Plot, Two vs Ten, Puppy and Sum, Divisible by 3
Contributions
Problems Authored (0)
No Contribution
Problems Tested (0)
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Editorials Contributed (0)
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