Senyuan Wang
- wangsenyuan
- Professional
- Hangzhou
- List of teams by Senyuan Wang
- https://discuss.codechef.com/u/wangsenyuan
- No Active Plan. View Details
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Practice Problems (2421):
Practice:
Prime Generator, Transform the Expression, The Next Palindrome, Factorial, Sphere in a tetrahedron, Pouring water, Play on Words, Marbles, Tautology, Stable Marriage Problem, Poker, Mixtures, Bytelandian gold coins, Not a Triangle, GCD2, Help the soldier, Johnny and the Beanstalk, Spaghetti Monsters, Paying up, Product of divisors, The Guessing Game, The Way to a Friends House Is Never Too Long, Primary Proposal, Battleship V, Life, the Universe, and Everything, A Very Easy Problem!, Paying up, Johnny and the Beanstalk, The Rise and Fall of Power, Exploding Search , An interesting subsequence, Healthy dinner party, The Lucky Draw, Count the squares, The White Knight, Johny the farmer, Sums in a cuboid, Bytelandian Robots, Golf course, Nuclear Reactors, Buttons, A Bowling Game, A Coin Game, Sum of pairs, Sum of numbers, Nikhils Dungeon, Permutation Cycles, Discrepancies in the Voters List, A puzzle game, Paragraph Formatting, Just a simple sum, Kayaks, Forces in the crystal, The N Queens Puzzle Revisited, The LCS Problem Revisited, The Best Box, Palindromic Numbers, Maze of Digits, Plant Location, The Matrix Game, Rational Numbers, The Mine Field, Lost Primes, Soccer League, Money Matters, Treasure Hunting, K-important Strings, Tri-Hexagonal Puzzle, Travelling Salesman Again !, Trip, Adding Fractions, Graph Counting, Array Transform, Lights Out, Nice Quadrangles, Rendezvous, The Black and White Knights, Closest Ranking, Flipping Coins, Multiples of 3, Swarm of Polygons, Tidying Posters, Maximal crosses, Squirrel and chestnut, Exit code, Gravel, Adding Least Common Multiples, Randomly Testing Circuits, Brush Fire, Obstacle Course, Logging Game, Bombing, Count palindromes, Bogosort, Fetching Cooking Tools, Arranging the Appetizers, Cleaning Up, Bytelandian Shoppers, Trees Again, A Simple Equation, Decreasing String, Make A Square, Stepping Up, Weight of Numbers, Cooling Pies, Balanced Walks, Painting Racing Lanes, K-Unique Sequence, Byteknights and Byteknaves, Bonus, A New Number System, A String Game, Restaurant Expansion, Chess Pushing Game, Flu Shot Lineup, N Knights Problem, One Dimensional Game of Life, Number Game Revisited, Preparing Dishes, The Morning Commute, Pairing Chefs, Count Relations, Milestones, Pruning Trees, Chef team, Whole submatrix, Integer Sequences, Breaking Into Atoms, Omax, Dance Floor Energy, Tree Product, Money Transformation, Central Point, Rectangles Counting, Snake Snaky, Grouping Chefs, The Great Wall of Byteland, A Prime Conjecture, Maximal Score Path, Wireless Network, Internet Media Types, Chef Teams, Restock, Socializing Game around Pizza, Packing the Golden Triangles, Distribute idlis Equally, Coloring in Hypercube, A-E Hash Function, Correctness of Knight Move, Super-plane, Most Popular Friend, Infinite Grid Game, Misinterpretation, Garden Squares, Pleasing Chief, Younger Brother, Birthday Gift, Longest Weird Subsequence, BIT Magazine, Vote for the Noodle Soup, Dish Distribution, Open the Dragon Scroll, Rotate the String, Angry Chef - Crispy Chips, Collect the Chocolate Chips, Robot Movings, Lucky Palin, Box and Ball System, Chefs new Pet, Last Digit Sum, Digit Rotation, New Restaurant, Hotel Bytelandia, The Postal Service, Across the River, Generalized Arithmetic Progression Free Sequence, Chef Travel Routes, Moving Coins, Subanagrams, Lucky Count, Lucky Number, Houses and Restaurants, Ciel and New Menu, Ciel and A-B Problem, Little Elephant and Median, Lucky Long, Parallel Computing, Free Shuttle Service, Collision in Space, Makx Sum, Zeta-Nim Game, Word Couting, Home Delivery, Count of Maximum, Spoon in Matrix, Fit to Play, Daily Train, Equation Solver, Little Elephant and Product, Lucky Balance, Little Elephant and Order, Magic Trick, Jewels and Stones, Ciel Numbers I, Ciel Numbers II, Little Elephant and Balance, Little Elephant and Swapping, Little Elephant and Strings, Stacking Pancakes, Greatest Dumpling Fight, Divisible Pairs, Little Elephant and Alcohol, Little Elephant and Magic, Andrew and the Birthday, Little Elephant and Movies, Little Elephant and Mouses, Little Elephant and Painting, Little Elephant and Blocks, Selection for Training Camps, Remember the recipe, Magic Hull, Crease Painting, Resistance, Little Elephant and Bamboo, Little Elephant and Cards, A Home for Chef, Little Elephant and Exams, Chef's Dream, Kisses & Hugs, Remy paints the fence, Little Elephant and Bombs, Little Elephant and Music, Doom Bakes Cakes, Fierce Battles, Lucky Driving, Little Elephant and Balloons, Little Elephant and Lemonade, Chef World, My Fair Coins, The Gray-Similar Code, Little Elephant and Bubble Sort, Gift Rift, Arranging Cup-cakes, Event Organizer, Closing the Tweets, Prime Permutations, Connecting Soldiers, Golden Trees, Alien Chefs, Matchsticks, Block Game, Range of Data, Delivery Boy, Racing Horses, Ciel and Receipt, Ciel and Map, Ciel and Tomya, Queries About Numbers, Witua and Math, Sereja and Data Structures , A Wonderful Chocolate, ChefTown Parade, Three is Crowd, Codechef Password Recovery, Forced Output, Code Crazy Minions, Random decreasing function, The New Scheme, Delicious Dishes, Chef Game, Granama Recipes, Coin Flip, Recipe Reconstruction, Carvans, Coal Scam, Book Exercises, Tourist Translations, Need More Diamonds, Magic Rankings, Different Trips, Little Elephant and Permutations, Sridhar Likes Travelling, Buying Sweets, Equalization, The Uncountable Ways, Tennis Tournament, Magic Board, Little Elephant and Divisors, The Minimum Number Of Moves, Arithmetic Progressions, Pizza Delivery, Barcelona Gameplay Tactics, End Of The World, Jurassic Park, KGP Summers, Small Airport, Retail Shop, Triangular Queries, Tree Counting, Expected Greatest Common Divisor, Root of the Problem, Packaging Cupcakes, Reversing directions, Collecting Magical Berries, Chef of the Year, Climbing Stairs, ChefGame, Approximately, Minimum Distance, Many Chefs, Defacing Score, Three Different Numbers, Merciless Chef, Snape and Ladder, Kingdom Unity, The Ball And Cups, Palindrome, Traveling Plan, Level Of Difference, Hello Hello, Fire Escape Routes, Lack of Logic, Row and Column Operations, Hotel Balifornia 2, Maximum Weight Difference, BiCo Gaming Grid, Helping Lira, Levy Conjecture, Superpowers of 2, Name Reduction, Your Name is Mine, Field Trip, Save The Princess, Just Some Permutations 3, Andrew and the Meatballs, Andrew and the Strings, Dessert Wizard, Mountain Holidays, Mountain Holidays 2, The Number Of Solutions, Galactik Football, Two k-Convex Polygons, Andrew and the Balls, Andrew and the Meatballs again, Predictopus, W String, The Probability Of Winning, Lapindromes, Cool Guys, XOR Sum, Subtraction Game 1, Subtraction Game 2, Chef and Walking on the rectangle , Chef and Segments, Chopsticks, Compressed String, A Plus B Again!, Sequence Transmission, Maxim and Dividers, Maxim and Progressions, Sereja and Game, Sereja and Commands, Count K-Primes, Attic Crossing, Lyra and the Alethiometer, Sereja and two strings, Sereja and Ballons, Tywins Tactics, Number of Factors, Sereja and Graph, Sereja and Transformation, Circle of death, Draughts, Chef and Integers , Splitting Candies, Cooking dishes, Optimal Trip, Travelling Chef Problem, Project Spoon, CAO Stage-1, CAO Stage-2, Matrix, Sorting, Yet Another Nice Girl, Chef and The Right Triangles, Chef and The Divisibility Queries, Yet Another Cute Girl, Strange Matrix, Chef and Gift, Game, Kamehameha, Tree, Code, 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, Cube Cakes, Uncle Johny, Square Digit Squares, Missing some chairs, Chef and Codes, Girl Friend and String Gift, Lucy and the Number Game, Lucy and the Math Analysis, Lucy and Palindromes, Exponential Game, Chefs in Queue, ForbiddenSum, ATM, Am I a Fibonacci Number, Lowest Sum, Number of Paths, Rank of the Number, Funny Marbles, Magic Pairs, Make Him Happy, Reign, Rectangular Queries, Chef Goes Through Segments, Meteor, Chef and Favourite Sequence, Mike and Task Packages, Reign 2, Mike and Matrices , Counting Matrices, Bon Appetit, Please like me, Chef and Girlfriend, Chef and Combinatorics, Chef and Feedback, Team Split, Longest Common Pattern, Little Elephant and Subarrays, Farmer Feb, Chef and the Cake I, Colored Array, Chef and Functions, Chef and Shop, Chef and String, Chef and Numbers, Subtraction Game, Interrogating Gangsters, Compilers and parsers, Chef and Way, Binary Tournament, Walk, Garden Game, Maximum number, GCD condition, Chef and Magic Arrays, The Street , Little Chef and Numbers, Mike and Stamps, A Story with Strings, Chef and Kingship, Chef and Uniqueness, Chef and Reunion, Game of Divisors, ABC-Strings, 3-Palindromes, Sereja and ASum, Chef and Graph Queries, Sereja and D, Sereja and Arrays, Chef-jumping, Chef and Digits, Alok-nath and His Sanskars, Little Elephant and T-Shirts, Dividing Stamps, Divide the Tangerine, Substrings and Repetitions, Book Game with Chef, A Game With a Sheet of Paper, Statements Checking, Chef and Reversing, Chef and Frogs, Chef and Ground, Chef and Chain, Chef and Segment Game, Chef and Digit Jumps, Chef and Rainbow Array - 2, Chef and Strange Matrix, Chef and Subarray, Chef and Bracket-Pairs, Shortest Path in Binary Trees, Chef and Swaps, Chef and Left-Right, Chef and Words, Chef and Square, Divide the Cake, Ups and Downs, Tree Game, Stone, Count Substrings, Count Permutations, Count Sequences, Minimum Product, Count Substrings, Permutation Shuffle, Reach The Point, Dish Owner, Divisible Subset, The Leaking Robot, Approximately II, Addition and Multiplication, Forgot Password, Lucky Fives, Game of Numbers, Queries on the String, Time to Study Graphs with Chef, Counting Flags, Knapsack Problem, Painting, Sherlock and the Grid, Subarray GCD, Subarray LCM, Chef and sequence, Earthquake, And Operation, Shift The String, Lowest Common Ancestor, Simple Editor, Cleaning Tables, Copy-Paste, Present for Andrii, Sum Queries, Chef and Gift, Friends, Fun with Rotation, Fombinatorial, Flooring, Harrenhal, Wall, A wolf, a sheep and cabbage, Shooting, Chef and Strange Formula, World War 2, Servers, Jam, Chef And Fibonacci Array, Sereja and Game 2, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus, Chef and easy problem, Chef and easy problem 2, Chef and medium problem 2, Steady tables, The Dirty Path, Distinct Characters Subsequence, Chef and Red Black Tree, Chef and A Large Permutation, Chef and Notebooks, The Army, Walk on the Axis, XOR with Subset, And Tuples, Let us construct palindrome, Chef and a great voluntary Program, Matrix Again, Player, Chef and Strings, Sereja and Two Strings 2, Mahesh and his lost array, Sereja and Salesman, Chef and Apple Trees, Cascading Style Sheets, Sereja and LCM, Covering Sets, Lost Graph, Most Distant Points, Petersen Graph, Chef and Problems, Chef and Stones, Zombinatorial, Dividing the Students, Parenthesis with Maximum Sum Subarray, Sereja and Random Array, Sereja and Votes, One Dimensional Kingdoms, Delivery Man, Sum Of Binomial Coefficent , Queries On Tree, Bread, Devu and his Class, Candidate walk, Just multiply, Gcd Queries, Suraj goes shopping, Tojo hates probabilities, Random Rudreshwar, Sign Wave, Let us play with rank list, Abhijeet and rectangles, Chef and Equality, Chef and Interview, Chef and Strange Operations, Lucky Four, Heavy-light Decompositions, The First Cube, Broken Telephone, Filling the maze, Big Queries, Matrix, Strategy for the World Cup, Chef and His Friend, Devu and binary String, Devu, his friends and birthday gifts, Chef and Memory Limit, Way Out, Chef and Prime Divisors, Chef and Inflation, Chef and His Garden, Chef and Piano Scales, Chef and Polygons, Set Difference , How to Minimize a String, Devu and a light discussion, Chef and new recipe, How to Write a Message, Chef and Cake, Painting the Boxes, Chef Anup, Equality, How to Repaint a Fence, House Cleaning, Chef and Friends, Anticommutative implication, Ankit, Srijan and a game of stone piles, Gravity Guy, MasterChef, Devu And Churu , Chef and String, Na2a and lucky stone, Chef and Cube, Maximum Matching, Devu and Manhattan Distance, Chef and Yoda, Historical Junctions, Ingredients, Chain of Doughnuts, Nikitosh and xor, Number of Ways , Rupsa and the Game, Devu and decorating birthday cake, Devu and most energetic minion, Rupsa and Number army, Chefs and Voting for best friend, Maximize Disjoint Pair Sum, Path containing K Nodes, Bored of Nim, Time measure, Devu and his mouse Jerry, Divisibility by 9, Palindromic Queries, Chef and Trees, Longest non regular parentheses sub-sequence, Adding Special Sum, Churu and Balls, Chef and Submatrix, Puppy and game, Chef and Sets, Aditi and Magic Trick, Dividing Machine, Bank robbery, Chef And The Hiring Event, Fenwick Iterations, Chef and Segments, Puppy and cats, Who dares to be a millionaire, Chef and Super Array, Chef and Rectangle Array, Receipt Recovery, Lighthouses, Cracking the Code, Chef and collection of stamps, Chef and cinema, Friends Meeting, Spheres, Chef and the stones, Chef and the Cards, Chef and the XORed Number , Chef and the Number Sequence, Churu and lost string, Eugene and function, Capital Movement, Make Palindrome, Rupsa and Equilateral Triangle, Coffee Breaks, Many Lists, Rectangles of Love, Yet Another Problem About Sequences, Super Numbers, Chef and Two Fans, Stacks, Cyclist Race, Chef and cakes, emitL, Fast squarer, Oracle Devu and Longest Common Subsequence, Chef and Filters, Word Stem, Almost Sorted Permutation, Devasena, Kalakeya, Bhallaladeva, Finding Hardest Sum Value, Just Update and Print the array, Processing a string, Chef and Array and K, Chef and Tetris, Ancient Berland Roads, Chef and Destruction, Distinct Codes, Query over Matrix, Black And White Cells, Sereja and Line, Sereja and Array and Subtracting, Sereja and Pairs, Sereja and Tree 2, Chef and Maximum Sum Matrices , Chef and Sign Sequences, Chef and Sub Array , Urban Development, Chef and Cycled Cycles, The Christmas Gift, Amazing Experiment, Chef And Fibonacci Tree, Jalebi Bai and Decks of Sweets, Chef and Pick Digit, Chef and Time Machine, The making of a cake, Samosa Bhai and his Courier Company, Chef and Queries, The Revenge of Jalebi Bai, Save The Trees, Devu and Perfume, Exponential Sub-Palindromes, Chef And Binary Operation, Help Watson Escape, Fibonacci Queries, Malvika conducts a Programming Camp, Malvika and Animesh play Red-Blue cards Game, Animesh practices some programming contests, Malvika conducts her own ACM-ICPC contest series, Crazy Malvika discovers Crazy Fibonacci function, Puppy and Catchers, Digital clock, Dual Nim, Faded Palindromes, Gift and Chef, Chef and Socks, Chef and Tic-Tac-Toe, Chef and Polygons, maximize the sum, Chef and math, Parity tree, Chef And Special Dishes, Puppy and Board, Chef and Balls, Chef and Coins Game, Chef and Three Dogs, Puppy and Sum, Chef and Ballons, Forest Gathering, Two Closest, ABABAABA, The potato problem, Chef And Magical Path, Maximum K Sums, Odd Divisors, Queries on a Binary Tree, Cooking Schedule, Eugene and big number, Chef and Round Run, Chef and Soccer, Chef and Big Soccer, Akhil Recovers The Lost Array, Phantasialand, Easy Numbers, Evaluate the polynomial, Akhil And Random String, Better Maximal Sum, Floor Division Game, K-good Words, Right Triangle, Chef and Robots Competition, Art, Longest Increasing Subsequences, Sharing Candies, N different palindromes, Different Neighbours, Cutting Cake, Chef and his study plans, Chefland and Electricity, Best Maximum Product, Xortest Path, Equalize, Beautiful Sandwich, Interval Game, Chef and Two String, One more weird game, Square in numbers, Chef Land, Range Minimum Queries , Chef and Mover, Chef Shifu and Celebration, Maximum Disjoint Subarrays, Good Numbers, Love among People, Skyscraper Equilibrium, Chef and Proportion, Chef and Numbers, Chef and Land, Chef and Array, Chef and squares, Sebi and the cube, Chef and calculation, Lumpy - The Bus Driver, So Close Yet So Far, Digit Longest Increasing Subsequences, Short in Average, Product of Diameters, Lock-Free Stack, Matrix Transformation, Kth Max Subarray, The Lost Arithmetic Sequences, Counting Strings, Chef and Inequality, Chef and Triangles, Find The Point, Chef and Digits, Sherlock and the Ugly Flower, Watson asks Does Permutation Exist, ChefWatson uses Social Network, FastFood Combos, Task for Alexey, The Largest Bouquet, Watson and Digit Sums, Good Sets, Colorful Grids, To add or to multiply game, Hill Jumping, Kirito in labyrinth, Sebi and the highway, Sebi and the corrupt goverment, Chef and Square Set, Our Base is Under Attack, Chef and Subset, Chef and Subarrays, Chef and Queries, Chef and Numbers, Influence on Social media, Netcoin Verification, Divide Me Please, Precious Stones, Mr Wireless, Chef and Points, Superheroes and villains, Fly height mode, Digits Cannot Separate, Reservior, Tourists in Mancunia, Sealing up, Chef and Triangles, Chef and his Best Friend, Most Frequent Element, Gerrymander, Chairs, Cooking Game, Pishty and birthday, Bear and House Queries, Bear and Extra Number, Chef and Divisor Tree, Bear and Bribing Tree, Bandwidth of a matrix, Logan and his XOR debacle, Rainbow Graph, Yet Another Card Game, Increasing Xor Sequence, Safe Robot, Charles and the BRUTAL subsequences, Professor X and Grouping of Numbers, Logan and DIGIT IMMUNE numbers, Bear and Species, Worst Case Analysis, Infinite Graph, Chef and Prime Queries, Pishty and tree, Dish Of Life, Bear and Row 01, Bear and Clique Distances, The Birthday Tears, Max Out, Bear and Xor of Sums, Bear and Shop Trip, Bear and AB, Bear and Segments, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Cloning, Chef and the Feast, Xenny and Coin Rankings, Triplets, Snake Eating, Protecting The Poison, Chef got Recipes, Same Snake, Balanced Array, Hussain Set, Nasty Queries, Prefix Inversions, Post Tree, SubInversing, Hasan and boring classes, Consecutive Snakes, A temple of Snakes, A Game of Balls, Is It a Snake, Knight Covering, SnackUp, Centeroid, Chef and Universe, Snakes and their coup against The mongoose, Snakes and transition from Capitalism to Socialism, Snakes and their Discussions, Snakes and Graph, Ancestors in Two Trees, Mex division, Robots in a DAG, Black Nodes in Subgraphs, Pairwise union of sets, Minimax, Hull Sum, Company and Club Hierarchies, Chang and the Perfect Function, Chang and Perfect Quadruples, Year 3017, Tree Expectancy, Maximize Grid Score, Calculator , IPC Trainers, Two Coins, Bipartite Graph from Trees, Minimum Good Permutation, Good Pairs, Divide the Set, Palindromic Game, Greedy Candidates, Strings and Graphs, Weasel does Xor on Tree, Shooting on the array, Mathison and the Dynamo shuffle, Game on Stick, Matrix and Chef, Real obtuse, Product on the segment by modulo , Max Mex, Broken Clock, Weird Competition, Little Chef and Sums, Counter Test For CHEFSUM, Chef Hates Palindromes, Numbers Game, Infinite OR Game, Statistics Construction, Chef and Dice, S-T Mincut, Total Diamonds, Modular GCD, Chef and Counting Test, Chef and Weird Queries, Chef and Dancing Steps, Chef goes Left Right Left, Minimum SubArray, Maximum Number, Periodic Palindrome Construction, Modulo Equality, Obtain Desired Standard Deviation, Compression Algorithm, Strange Function, Too Much Sweetness, Killing Monsters, C - Club of Riders, Organize The Wallet, Pizza Party, Long Homework, A - Appearance Count, Skiing, Online Chess, Chef and XOR Queries, Smart Strategy, L-R queries, Vertex Cover, Black and Red vertices of Tree, Method Resolution Order, Find an element in hidden array, Obtain Desired Expected Value, Penalty Shoot-out, Rotate Point, Red and blue points, Spanning Tree, Chef and Hamming Distance of arrays, Vaibhav and Ministers, Minimize the string, Chef and Triangles, SAD Queries, Taxi Making Sharp Turns, Pishty and Triangles, Generating A Permutation, Optimize The Slow Code, Number Game, Proprietary Probabilistic Problem, Quadratic Functions, Beautiful Array, A Tale of Three Squares, A Tale of Two Right Angled Triangles, Magic Board, Nested Candy Boxes, Crypto Trading, A Few Laughing Men, K-Concatenation, Maximum Score, Partition the numbers, Multiple of 3, Make array great again, Chef and Average on a Tree, Chef and Escaping from the Labyrinth, Chef And The Patents, Survive in ChocoLand, Points Inside A Polygon, Mighty Friend, Chef and Gcd Queries, Permutation and Palindrome, Chef and Tuples, Chef and Chefness, Chef and Line, Stingy Strings, Maze Love, Prefix borders, Game with numbers, Mix the Colors, Minion Chef and Bananas, Hedwig The Smart Bird, Harry Potter and the Killing Curse, Weight of Numbers, Chef Goes to the Cinema, Chef Restores an Array, Chef Chooses a Subset, Chef Restores a Matrix, Sam, The Charming Angel, Highway Crossing, Split Sums, A Game of Game, DP Made Easy, Strange Swaps, XD Subsequences, Three Integers, Useless Clocks, Another Deli-ceilous problem!, Pappu and DFS, Strings, Magic Elements, Fibonacci String, Two Flowers, CPI Crisis, Count Good Prefixes, Killing Zombies, Vision, Chef and Replication, Majin Vegeta, Krillin is dead AGAIN, Perfect Necklace, Greenhouse and Plants, Run Direction, Binary Nim, Broken Heart , Triple-tree decomposition, Fast forward travelling, Fake Binary Search, Bob and Pallindromes, Dibs on Fibs, Difficult Choice, Best Cake Ever, Binary Shuffle, Count Substrings, Nearest Angle, Shifted Palindrome, Weak in the Middle, Maximum Plus, Masha and Minions, Problem Sort, Good Permutations, K Perfect Matchings, Tom and Jerry, Circular Intervals, Sort the Leaves, Changing Numbers, Counting Pretty Numbers, Reach Equilibrium, No Minimum No Maximum, OR Matrix, Chef and GCD Game , GCD Sum, Chef and Bored Games, Chef and Polygon Cakes, Chef and Cookies, Chef and Sorting, Prime divisors, Sheokand and Number, Chef and Pizza, Chef and Fencing, Kill them with your success, Awkward Pairs, Algebra Score, GukiZ and Candies, Mixi Game, Hack Fulu, Balsa For The Three, Chef and Problem Setting, War of XORs, Mix Mix Game, GukiZ Has More Candies, Chef and Adventures, Table Game, Binary Nim 2, Bad Shuffle, Appy and Balloons , Beautiful Bricks, Minimize Digitsum, OneTwo, Learning Dishes, Make a Permutation, Ghayeeth vs Siroj, Chef and Circles, Chef and Ridges, Biased Judgement, Chef Restaurant , Match the Streams, Spread the Word, Finding Teammate, Chef and Operations, Chef and Semi-Primes, Ada Pawns, Chef and Strange Addition, Graph on an Array, Pumping Water, Chefland and Average Distance, Reduction Game, Word Grid, Country Tour, Second Largest Element, Old Farmer, Paint the Wall, Coloring the Grid, Weird Question, Niceness of the Arrays, Maximize Product, Chef and K Segments, Good Median, Binary Strings, Spectacular Activity Selection, Arranging the Inventory, Chef and Two Queens, Beautiful Garland, A-B Game, Tree Unattractiveness, Largest Increasing Subsequence, Subtract Leading Digit, Cutting Pizza, Antimatching, Suffix Palindromes, Maximize It, Chef and Interactive XOR, Chef and Meatballs, Event, Beats and Pieces, Lighting Rectangle, Adi and the Tree, Mafia Syndicate, Lucky Number Game, A Triangle and Two Squares, Count Periodic Numbers, 1-2 Game, Pseudo Sorting Algorithm, Capturing Bird in A Camera, Game of numbers, A - Even Odd subsequences, Autonomous Cars, Siruseri Gerrymandering, Prefix Numbers, Yalalovichik Numbers, Fighting Armies, Magic School, Get a Bucket of Water, Do You Want to Build a Snowman, What is the Cost of Reading, Yalalovichik Strings, Palindromic Walks, Return of the Gargoyle King, Choosing from Buckets, Drawing Lines, Ross goes for Shopping, Summation over nCr, Sherlock and His Device, Find Best Path, Availability, Age Calculator, Chef and Modulo Game, A Pizza Slice, Ada King, Ada Matrix, Manhattan Rectangle, Wanderer, Rooks, The Nights Watch, Offer for Chef, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Xor Decomposition, Art of Balance, Maximize the Tax, Bathwater, Cats and Tree, Max Range Queries, Chef and Secret Password, Up for a Game, Chef and Party, Average Number, The Tricky Deal, Chef Challenge, Treasure Hunt, Chef and a Beautiful Digit, Matchable Permutations, Kira Loves Palindromes, XOR N-bonacci Sequence, Cats and Rats, UEFA Champions League, Markers and Caps, Playing with Numbers, Too Many Candies, A Weird Device, Music Shopping, Earning A Profit , Greg and Grid, Arya and the Grid of Stars, Subtree Removal, Fencing, Cersei and her Soldiers, Endgame, Corrupted Seven-Segment Display, Travelling Saleschef, A Small Array, Weirwood Trees, Go Round, Longest Xommon Subsequence, Doubly Increasing Path, Random Game, Surgical Strikes, BLACK LINE, When to take medicine, Pied Piper vs Hooli, Maximize Walk Value, Maximum Scoring Position, Mystery Tree, Ada Rooks 2, Matches, Snake and Apple Tree, Chef Learning Hungarian Algorithm, Reduce to One, Road Signs, Dream Problem, Count Arrays, Guddu on a Date, Where to Build the Roads, Chef Rami and Inventions, Chef and Ingredients, Chefina and Ranges, Must Be Divisible, Sum and GCD, Fuzzy Conversions, Guess the Prime!, Misha and Nice Sets, Bitsetbaba and Power Grid, Expected Xor, Recover the Sequence, Dummy Palindromic Strings, Grid Tour, Reverse Maximisation, Searching for a Biclique, Abdullah and Toll Discounts, Chef and DAG, LOVEMUFFIN, Biladerim Icin, Nice Subsets, Maximize an Expression, Circular Merging, Ants and Anteaters, Chef and Gordon Ramsay, Eat Twice, Drink Slush, Gii and His Club, Igzi and Burly Array, Zombie and the Caves, Birthday Gift Again, War in Treeland Again, Expected Product, Two Variables, Missing Number, Delete a Subarray, Professor on a Trip, Expected GCD, Smallest Beautiful Number, D - Break the Rules, Chef and Dynamo, Doofish Set, Rich Substrings, Chef Designed a Network, Chef and Pepperoni Pizza, Two Circles, Chef Drinks Coke, Infinite Increments, Chef and Interesting Subsequences , Equal Average, Array Modification, Binary XOR, A Simple Game, Angry Grandfather, Operations on a Matrix, Phone Prices, Hiring Chefs, Two Groups, Tennis Tournament, Chef and Football Match, All Substrings, Chipped Tree, Find the Sum, Single Point of Failure, Beautiful Partitions, Moving Segments, Grid Shuffle, XOR Engine, Cakewalk, D-Value, Hidden Sequence, D-Or, The Promised Land, Recipe for Philosopher Stone, Counting Inversions Again!, Box Game, Counting Inversions Revisited, How much Scholarship, Signature, The Challenge Day, Pizza or Broccoli , C - Recover Array, Compress the List, Chef and Diamonds, IPL Begins, Analytics Load Jobs, Inverse Knapsack, Disconnecting Cities, Yet Another Balanced Parenthesis Problem, Game on Tree, Telephone Network, Expected Area, Mean Problem, Coloring Intervals, Ada Bishop 2, Purify It, Xor It, Walk 4 steps, Crash It, Corruption in Freedonia, Gru is Handing Out Bananas, Counting Mobiles, Expected Candies, Stupid Machine, Frequency Function, Guess the number, Chef and Rotation, Chef and Or, Strange Number, Exam Cheating, Squared Subsequences, Perfect Power Divisors, Is it Sorted or Not, That is the Question, No Change Required, Ready Bitwise, Even Matrix, Bob and His Friends, Under the Tunnels, Inverse of a Function, Lasers Everywhere Alternative, Chefina and Swap, Chefina and Swaps, Long Contest and Cook Off Overlaps, Lavanya Loves DFA, Conservative Graph, Chef and Pepperoni Pizza Again, Penalty Shoot-Out II, Tax Slabs, Base Plans, Joined Subarrays on Tree, Blocks, Mercury Poisoning, Secret Mission, Sorting Vases, Mysterious Sequence, A Tree to Remember, Box of Chocolates, Maximize Letter Beauty, Random Chocolates, Escape the Tree , Chef and Dragon Dens, Maximize LCM, Strip in a Tree!, Good Prefix, Chef and Secret Recipe, Tower Counting, Matrix Decomposition, Simple Operations, Inversions in Permutations, Missing a Point, Profitable Paths 2, Maximum AND, Dot Time, Insanely Hard School Exams, Xor Jar Muluk Tar, Another Birthday Present!, Positive Mex, Isolation Centers, Impressing Chefina, Chef, Chefina and Their Friendship, Chefina on a Trip, Roads in Chefland, The Tom and Jerry Game!, Operations on a Tuple, Doctor Chef, Convenient Airports, Guessing Game, Absolute Min Max, Escape One, Weird Walk, Convert the String, Tree difference, Per Capita Income, Max Mex, Carry Bed, Checkpoints, Banned Quotient, Doof on Cartesian, Doof fires Brackets, Beautiful Circles, Increasing Decreasing, Gold Mining, Square Submatrices, Chef and Trump Cards, What Is This, a Crossover Episode, MEX-ception, The In-XOR-able Task, OR-thodox Distinction, Path-etic Products, Cherry and Bits, Cherry and Pyramid, Traversing Trees, Help Martha, Chefina and Strange Tree, Priya and Parity, Another Card Game Problem, Find XOR, Maximum Candies, Binary Concatenation , Game on a Strip, Chef and Wedding Arrangements, 3 - Puzzle with division, 4 - Palindrome and antipalindrome, 2 - Reach a level, Divide Candies, Red-blue Trees, Polygon Relationship, K-Foldable String, Counting Graphs, Ada Matrix, Alien Invasion , Elevator, Ratings and Rankings, Coronavirus Spread 2, Maximise Subsequence Value, Bulbs and Wires, Permutation Split, GCD operations, Root the Tree, Binary String MEX, Robot Detector, Inversions, Rooted Minimum Spanning Tree, Replace for X, Restore Sequence, Hail XOR, Decreasing Srrnmieeda, Path-etic Sums, The In-XOR-able Task, AND Plus OR, Better call Saul!, Los Pollos Hermanos, Empire Business , The One Who Knocks!, Chef and Subtree MEXs, Chef Likes Good Sequences, Morosoph Todd, The Chosen One, Chef Is Just Throwing Random Words, Counting Spaghetti, Unusual Queries, Cute Chef Gift, Iron, Magnet and Wall, Chef and Ants, Frog Sort, Flip the String, Graph Construction, Set Queries, Hiring Workers, Xor Compare, Gasoline, Rook Path, Fractions, Interesting XOR!, String Operations, Positive Prefixes, Blackjack, Team Name, Mysterious Sequence, Self-Destructing Strings, Dense Graph, Watching CPL, Sed Passwords, Mex Subsequence, Array Swaps, Efficient Delivery, Catch the Thief, Circle of Chaos, Carry All Fruits, Angry Cyborg, A DT Chip, Rise of Cyborgs, Cybertree, K-Tuple Tree, Binary Puzzle, Cybalphabit, Even Sequence, Three Letters, Fair Elections, Batteries Needed!, Good Grid, Horoscope Matrix, One Zero Swaps, Maximum Value, Maximum Size Hollow Square, Valid Paths, Rectangle, Chef and Hills, Point Grid, Another Tree with Number Theory, Bodybuilder, Maximum Possible Sweetness, Chef and Patients, Minimal Travel Time, Shifting Spoons, Total Overlap, Cheating Time, Chef and Meetings, Chef and Divisors, Not Too Colourful, Maximum Size, Prime Game, Prime Tuples, Maximum Score, Multiple Games, College Life 2, College Life 5, Maximise Islands, College Life 4, Prefix And, Common Ancestors, Dreams of Divisibility, Binary Subsequence, 1 - Binary Distance, 3 - Good Grid, Even Sum, Minimum Dual Area, Consecutive Adding, Paparazzi Gennady, Space Arrays, Valid String, Server Trouble, Thief and Police, Average Sorting, Consecutive Deletions, Sed Max, Students, heights and their IQs, Tree paths sum, Palpal Strings, Chef and Reordering, Coprime Range, Independent Set, Maximum Topological Sort, Worthy Matrix, A Special Tree, Odd Array, MaxEdges, Water Transfer, Total Correct Submissions, Dinner by Candlelight, Sort String, Chef and Sorting, Matrix XOR, Guess the Number, Suffix Sort, Infinite polygons, Stack Of Rectangles, Team Divisions, Special String, Chef and Dice, Make the Sum Even, Birthday Gifts, Racing, Node Codon, Uniform, Lunchtime, Gamer, How many cuts, Minimum Popping, Boolean Game, The Last Problem, Chef in Heaven , Hiring Test, Bench Press, C - Mission Gotham, D - Pilgrims Destination, G - Maxpool, E - Minimum Operation, F - Stone Land, Low Budget Sanitization, Tree Distances, OR of ANDs, Joker and Batman, Tree House, Deletion Sort, Sleep Cycle, King Killing, Intersection Matrix, Array Rotation, Special Triplets, Charges, Shortest Route, Xor Equality, Tic Tac Toe, Modular Equation, Permutation Swaps, Golf, From Rational to Binary, Falling Zero, Vaccine Drive, Bitwise Tuples, Subtree Center, Plagiarism, Double Burgers, Bella ciao, Too Much Xor, Chef and Subarrays, Largest Square in the garden, Tokens On A Tree, Correct Sentence, Interactive MST, Total Components, K-Subarrays, Dual Distance, Minimum Subtree Cover, XOR Folding, ICPC Balloons, XxOoRr, The One On The Last Night, The One Where No One is Ready, Hidden Cell, Flappy Bird, Binary String on Steroids, Battle Royale, The Wave, Chef and Queries, Node Marking, Optimal Denomination, Unpleasant Ones, Tic Tac Toe, Chef and Pairs, Closest Power, Chefs Homework Dilemma, Dakimakura Distribition, Different String, K Path Query, Even tuples, XOR Equal, Palindromic number, Range Array, Odd bits, Chef and Closure, Equal Difference, Ceiling Sum, Maximum Array Xor, Beautiful Subsequence, Array Filling, Geometry 1, XOR-ORED, Square Function, Planetary Path, Chef and Bulb Invention, Mod Equality, Three Points, Shuffling Parities, Increasing String , Hidden Colored Graph, Interesting Representation, Xor Separation, Cinema Ticketing Queue, Integer concatenation, Positive Spewing, Longest Good Segment, Charge Scheduling, Fat Hut, Javelin Qualification, Deja Vu, Friend Groups In A Line, Large Square, Bus full of passengers, Fibonacci concatenation, India Fights Corona, Chef at the Olympics, Interactive Equivalency, The Rumbling, Clear the Array, Team Formation, Odd GCD, K-th Maximum, Crossing Blocks, Bunny Hops, Just a Graph, Chef and Professor, Longest Spanning Substrings, Chef and Deque, Odd Repeat, Magical Flips, Maximise the Subsequence Sum, Remove One Element, Tree Distance Sum, Treasure Hunt, 2-D Point Meeting, Meet In The Median, Minimum Digit Sum 2, Task Times, Longest AND Subarray, K - balanced string, ATM Queue, Digit Removal, The Grid Fill Problem, Obtain the Sum, Remove Balance, A Counting Problem, Add and Divide, Chess Kings Chasing Game, Chef and Pairwise Distances, Zebra Crossing, Half Sequence, Yet Another Flipping Problem, Fake Swaps, Adjacency Hatred, Subsequence LCS, Another Shortest Paths Problem, MEX-OR, Maximum Points, The Minimum Game, Yet another MEX problem, Alice vs Bob Faceoff, Maximum Light Up, Professor And Directions, Make that Array!, Interesting Pairs, Prefix as a Substring, Magical Doors, Sardar and GCD, K - Magical String, Chef and Magical Steps, Maximum Damage, FIXFIX, Characteristic Polynomial Verification, Counting Tuples, Games of Wasseypur, Gun Distribution, Cool Name, Magic Weed, Subarray Sum, Division , Magical Planks, Minimise the Size, Clean The Sequence, Nice Pairs , Farmers of Wasseypur, Game of Length, Prefix as a Substring 2, Maximum Number Of Distinct Elements, Minimise Difference, Round Robin Ranks , Median Rearrangement, Equal Beauty, Tree Upshot, Min Max LCM, Can You Reach The End, Chef and Water Car, Exactly N plus 1 Values, Odd Sum, Find the Modulus, 01 Subsequence, Chef Up, Fixed Points, Flip or Compress, Yet Another Flipping Problem 2, Insider Subsequences, Largest Laddu, Help Nishant, Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Maximise the bridges, Binary Inversion, Substring Minimum Function, GCD of Prefixes, The One with All the Candy, The One Where Joey Dates Rachel, String Game, Partition It, Find the Special Node, Non-Decreasing Subsequence of size K, Break And Fix The Tree, Good ranking, Product Pain, Guests like slippers, Weird GCD Value, Missing Sums, Make it Divisible, Palindromic Binary Numbers, Expectations on a Permutation, Compare those strings, Sum this up, The One with Ross Wedding, Minimum Number of Pizzas, Expected Weight, Kingdom Attack, Min-Max Rotations, Permutation Pairs, Subarray Jumps, Strange Minimization, Rapid Re-Orderings, Again XOR problem, Check Mate, Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists, Squares Counting, Yet another subarray problem, Remove Element, Balance Zeroes and Ones, Maximum Palindrome, Graduate Work Matters, Sorting Segments, Maximum Factors Problem, P Equal To NP, Marbles, Indivisible Permutation, Ddakji, Median Minimization, The Alternating Sum, Distinct Elements, Avoid Fixed Points, Binary String Game, Three Bikes, Coordinate Points, Tug of War, Destructive Nim, Escape Plan, Finding Pairs, Stable Sequence, Weird Values, Hopscotch, Brutal-Xors, The Three Bogatyrs, Musical Chairs, Break the Balance, In-tree-active Node Coloring, Subarray permutations, Optimal Sorting, Romantic Reversals, Sleep Technique , Sequence GCD, Count Number of Peaks, Favourite String of Chef, Akash and Grid, Magical Subsequence, ChefWM, And Or Union, Mean equals Median, Prime in a binary string, The Melancholy of Problem Setter, Retrieve back the Array, Vedant and his Hidden Array, Aujasvit and the Circle Game, Neil and his Binary Tree, Ones Guessing, Chef and Riffles, Sarthak and his Set of Primes, AND of Maximums, Power Sum, Vishesh and his Hate for Even Numbers, Prefix Zeros, Palindromes Not Allowed, Tree Master, Sum and OR, Mean Maximization, Subsegment Divisibility , Crying Colours, An Interesting Sequence, Merged LIS, Even Subset Xor, Convert Strings by Flips, Merging Binary Strings, Equal LIS, Prime Graph, Counting Pairs, Subarray Mex, Erase All But One, Maximise the Minimum, Maximising Vacations, Non Zero Subarray Xor, Anti Palindrome, Avoid Contact, Permutation XOR Sum, Building Towers, Special String, Minimum Longest Substring, Divisors and Reciprocals, Yet Another Constructive Problem, Digit Multiplication By K, Binary Base Basics, Bitwise Blend, Equal MEX, Fixed Weight, Remove Adjacent, Bitwise swaps, Hidden Permutation, Count Arrays, Xor Becoming Uncanny, Perfect Permutation, K Distinct Array, Palindromes Not Allowed, String Reverse, PerMEXuation , Xor Palindrome, Stone Game, Array Division, Careless Chef, Control the Pollution, Distinct Binary Strings, Non Coprime Neighbours, Mango Market, Prefix Permutation, Slingshot, The product mystery, Four Equidistant Points on a Grid, Parallel Processing, Increase 2 consecutive characters, Travelling in the Graph, Visit Them All, Decomposition Reaction, Permutation Xority, Max Heat, Max BIT Sum, Magical Modulo, Interactive Tree, Magnet Sort, Secret Tree, Broken Dreams, Dragonado And XOR, Interactive Tree 2, Subarray XOR, Alternating Divisibility, Count the Ones, MEX on Trees, Minimum Coloring, Maximizing LIS, Prefix Suffix Operations, Winter, Adjacency Love, Separate Them All, Pile Partition, XOR and AND, Alternating String, Sign Moves, Mexy Array, The Unchanging OR, Stable Mex, Missing Numbers, Same Parity Swaps in Binary Strings, Maximize the Minimum, Binary String Cost, LR Shirts, Finding Shoes, Training Plans, Two Merchants, Flip Sorting, Chef Goes Shopping, Sorted Distances, Distinct Integers, Sticks and Rectangles, Array operations, Prime Sum, Distinct Dilemma, Broken Life, Jump to Sibling, Non Adjacent Flips, Make Them Equal, Bullets and Enemies, Chef Find XOR Beautiful, Maximum Value from Binary strings, Min Max Equality, Binary Mismatch, Pairwise Xors, Akash and Equal Mean, Average Array, Binary String Xor, Good Permutation, Buckets Full of Candies, Do Not Touch the MEX!!!, Secret Machine Mania, Mystical Numbers, Concurrent Lines, Palindrome Pain, Admins and Shopping, Dazzling Even-Odd Challenge, Chef And Division, Compress the Video, Buying Sweets, Reduce to 1, Crazy Substrings, Three Arrays, Different Subarrays Rearrange, Minimize Blocked Roads, Triple Inversions, Too Mean, Yet Another Palindromic Problem, The Magical Stone, Alternating Diameter, Closest Vowels, A Bit Easy, Good Pairs, Average Gift, Maximum XOR, Anti-knapsack, Maximum Pairwise Modular Sum, Balanced 0-1 Tree, Subsequence-Numbers Divisible by 7, Equal After And, Rearrange Ranges, Even Subarray XOR, Not Tree Again!, Xor Palindrome, Subarrays with length, Make them Zero, Infinity Staircase, Sort the Array, 7th Love, Or Permutation, Good Pairs, Black and White, Remove and Add, Is this priority or parity!, Path Parity, MEX Sequences, Dearrange sorting, Full Path Eraser, Throw and Take, Simple XOR, Prefix Suffix Distinct, Break the Stick, Split AND Sum, Construct An Array , Sorting Array, Expected move, Reduce to zero, Maximise Set Bits , Maximise Score, How Many Maximums, Possible GCD, Array Sorting, Make them Equal, The Optimal Pairs, Permutation AND, Distinct Palindrome, The Lost Array, Maximize Difference, Max Shift After XOR, XOR Times 2 Is Sum, Equal by XORing, Atleast and Atmost, Triple Xor, The Attack of Knight, Xor and Multiply, KBG and GN-Theory, Gcd and Lcm , AP Grid, The Subarray XOR, Prime Xor, Strong Elements, Vowel Anxiety, Students-Far From Hostel, Segmentation Fault, Subsequence LCM, Array sorting, Army Training, Game of Piles Version 2, Find A, B, C, Strict Permutation, Copy and Push Back, The XOR-OR Dilemma, Concat Sort, Consecutive XOR, Maximum Median Matching, Largest Family, Positive array, Accurate XOR, Sum of Product 2, Split The String, Monks, Air Blimp, Sum Product Segments, Chef & Cook Game, Adjacent Xors, Copy and Paste, Angled Flip, Tree of Trees, XOR with smallest element, Crazy Subsequences, Tree Coloring, K-Flip, Gritty Grid, Flipping Failure, Nil Xor, Subtract 12 Operation, Black&White Ring Game, Queen Blocks, Departments (Hard Version), K Flip, Team of Two, Departments (Easy Version), Ball Sequence, Distinct Numbers, OR Tuples, Distinct Numbers, Pokemon Battles, K-Subarrays, Binary Substitution, Tree and Divisors, Delicious Queries, Increasing Addition, Remove Numbers, Adjacent Pairs, Longest Unfriendly Subsequence, Piles Parity, Equivalent Numbers, Good Arrays, Add to Subsequence, K - Beautiful Permutation, Chef And Array Construction, Maximum Subarray , Seven-Segment Factoring, Alternative Sufferings, Twos and Zeros, Binary Substituition, Maximum Sum, Red Green Grids, Yet Another Palindrome Problem, Tri XOR, Equal Inversions, Palindrome Partition, Weird Subarrays, Red Blue Flowers, Row Bombing, Subarray Removal, Get the Segment, Strange BST, Joint XOR, Disjoint XOR, Pythagorean Pair, Counting Subsequences, Distinct Neighbours , Maximize 1s, Count Partitions , GCD Sort, Interactive Tree, One-XOR Deletions, Make Length 1, Minimum Absolute Score, Greedy Grid Moves, A Short Counting Problem, Range Assign, Number of Distinct Elements Minimize, Square Sort, Xor Array, Paisa Double, Binod, Gormint Aunty, Distinct Neighbours , Minimize swaps, Minimum BFS Length, Spliting Balls, Alice and the Array, Potato to Gold, Lazy Ancestors, Sorting the Binary String, Good Binary Strings, Palindrome by Splitting, Connect All Cities, Palindrome In Making, Chef and Spice Grid, Break into Powers, Minimum value of special tables, Musical Rods, Another Standard Problem, Count Number Of Pairs, Existence Of X, Guess All, AP On Trees, Boring String, Restore the Permutation, XOR Product, Sum of Cube , Divisible by A_i, Adjacent Pair Swaps, Make everything divisible by 3, Passing Through!, Distinct Sequence, Longest Subarray, Sort Permutation, X AND Y Tree, Two Counters, Frequency Array Retrieval, Flip the Prefix, Sum of range distinct queries, Expected Sum, Maximizing LCS, Minimum OR Path, Find an integer, No sequence, Consecutive Xor, First To Last, Candies, Maximum Xor Sum, Maximum of GCDs, Symmetric Swaps, Distinct Values, Minimize the Maximum, Minimal Inversions, Chefs Favourite Function, Minimum Replacement, Xor X,Get MAX, Equal Hamming Distance, Chef And Partytions, Bitwise Operations on Circle, Expected Value, Counting Is Fun, Contruct Array, Love Squares Hate Cubes, Alice Potter and OWL, Alice Potter and Wingardium Leviosa, Alice Potter And Dumbledore Army, Pasha and Good Ones, Minimum Beauty , Yet Another XOR Sort, Sort a String, K Forests, Spreading Charges, Concat Palindrome, K Increment Palindrome, Three Numbers, Yet Another XOR Sort 2, Bitwise Equation, Balanced Suffix, Divisible Subarray Counting, Sussy Perms, K-Beautiful Subarrays, Mountain, One Stone or Two Stones, Split or Decrease, Permutation Subsequence, Three-People Contests, c8kbf and Tree, Eat Rock!, Mode!, Meet over Grid, Make Them Alike, Find eX, Mex Segments, Saber Slays, Rotate to Minimum, Restoration, SUM OR, Twice GCD Thrice LCM, Digit Operation, Chef And Adjacent Sums, Count the Permutations (always), Checkpoint, Inversions of subsequences, GCD Queries, Bomb Blast, TripTastic, Least Size, Minimum Operation, Maximum And Or, Chef and Asteroids, Unstable Subarray, Largest Y, Minimize the Bits, Chef and Good Array, AB plus C, One or All, Positive or Negative Subarrays, Subarray Removal, Two Averages, Restore Communication, Crushed Apples and a Balance Scale, Tree Queries, Evil Infection, Minimum Ugliness, Minimum OR Spanning Tree, Sum of Goodness, Cheapest Office, Finding Sum, Anti Palindrome, Rectangular Tiling, XOR & Sum, Limited Shopping, Dividing into Groups, A Peculiar Arrangement, Chef and Polygons, More Inversions, Chef Odd, Chef Graph, Maximum Sum Permutation, Beautification of array, Gymkhana Election IIIT-A, Strange Sort, Place The Number, CodeChef Streak, Possible or Not, Search for 404, Special Operation, The Vowel Matrix, Distance Coloring, Dotify Playlist, Break Free, Thank U, Next, Why Try, Rank Queries, Positions, NASA, Greedy, Bloodline, Motive, Problem, Alt-Tab, Guess Game, Chef and Moves of GCD, Partition and Maximize, Boxes, Transfusion Chain, EVacuate to Moon, Break This Array, Swap the numbers, Remove Stones, Zero Array, Mex Array, Remove Multiples, Chef and Prefixes, 3-Blast Palindrome, Happiness , Absolute Differences, Weeding, Make It Special, Caesar Cipher, Unreachability Cost, Schrodinger Smiley, Chef and Division, No Palindrome, Airport Management, Build Towers, Disappearing Domino Game, Triplets Min, Ball Distribution, Some Queries, Sub-Array With Maximum Sum, Segment Three, Maximize Ones, Musical Chairs, Two Piles, Yet Another Bitwise Problem, Card Swipe, Prime Permutation, Exclusion-Inclusion, Codechef Copy, GCD Discount, Ultimate Fencing, Stamps 100
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