Robert Henson
- 2★rphenson
- United States
- Other
- List of teams by Robert Henson
- https://discuss.codechef.com/u/rphenson
- No Active Plan. View Details
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Ratings System Update
(2023-01-18 23:00:04)Ratings System Update
(2022-12-20 00:00:00)CodeChef Rating Distribution
Submissions
Practice Problems (947):
Practice:
Prime Generator, Transform the Expression, Factorial, Bytelandian gold coins, Not a Triangle, GCD2, Johnny and the Beanstalk, Paying up, The Way to a Friends House Is Never Too Long, Life, the Universe, and Everything, Paying up, Johnny and the Beanstalk, The White Knight, Nuclear Reactors, Permutation Cycles, Discrepancies in the Voters List, Soccer League, Gravel, Arranging the Appetizers, Cleaning Up, A Simple Equation, Decreasing String, Flu Shot Lineup, Number Game Revisited, The Morning Commute, Pairing Chefs, Money Transformation, A Prime Conjecture, Correctness of Knight Move, Garden Squares, Open the Dragon Scroll, Hotel Bytelandia, Moving Coins, Subanagrams, Ciel and A-B Problem, Lucky Long, Home Delivery, Spoon in Matrix, Fit to Play, Daily Train, Jewels and Stones, Little Elephant and Strings, Top Batsmen, Remember the recipe, Remy paints the fence, Little Elephant and Bombs, Little Elephant and Lemonade, My Fair Coins, Gift Rift, Arranging Cup-cakes, Closing the Tweets, Racing Horses, Ciel and Tomya, Code Crazy Minions, Granama Recipes, Coin Flip, Recipe Reconstruction, Carvans, Tourist Translations, Magic Rankings, Little Elephant and Permutations, Buying Sweets, Little Elephant and Divisors, The Minimum Number Of Moves, Pizza Delivery, Packaging Cupcakes, Reversing directions, Approximately, Minimum Distance, Many Chefs, Three Different Numbers, The Ball And Cups, Hello Hello, Fire Escape Routes, Row and Column Operations, Maximum Weight Difference, Helping Lira, Levy Conjecture, Name Reduction, Your Name is Mine, Andrew and the Meatballs, Dessert Wizard, Andrew and the Meatballs again, Lapindromes, Cool Guys, Subtraction Game 1, Chef and Walking on the rectangle , Chopsticks, Maxim and Dividers, Count K-Primes, Attic Crossing, Number of Factors, Chef and Integers , Splitting Candies, Pairwise AND sum, Chef and The Right Triangles, Polo the Penguin and the Test, Uncle Johny, Square Digit Squares, Missing some chairs, Chef and Codes, Lucy and the Number Game, Funny Marbles, Magic Pairs, Mike and Matrices , Bon Appetit, Please like me, Chef and Girlfriend, Chef and Feedback, Longest Common Pattern, Little Elephant and Subarrays, Farmer Feb, Chef and Shop, Chef and String, Compilers and parsers, Walk, Garden Game, Little Chef and Numbers, Chef and Kingship, Chef-jumping, Chef and Digits, Dividing Stamps, Chef and Frogs, Chef and Ground, Chef and Chain, Chef and Segment Game, Chef and Digit Jumps, Chef and Subarray, Shortest Path in Binary Trees, Chef and Left-Right, Divide the Cake, Stone, Count Substrings, Reach The Point, Dish Owner, The Leaking Robot, Counting Flags, Painting, Sherlock and the Grid, Subarray GCD, And Operation, Shift The String, Cleaning Tables, Copy-Paste, Sum Queries, Chef and Gift, Fun with Rotation, Magical Girl and Colored Liquid Potions, Chef and easy problem, Distinct Characters Subsequence, Chef and Notebooks, The Army, Walk on the Axis, XOR with Subset, Let us construct palindrome, Chef and Apple Trees, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Delivery Man, Bread, Suraj goes shopping, Tojo hates probabilities, Let us play with rank list, Chef and Equality, Chef and Interview, Broken Telephone, Chef and Memory Limit, Way Out, Chef and Piano Scales, Chef and new recipe, Equality, Tickets, Chef and Cube, Chain of Doughnuts, Chef and Dolls, Devu and decorating birthday cake, Chefs and Voting for best friend, Cops and the Thief Devu, Time measure, Divisibility by 9, Count Subarrays, Greedy puppy, Puppy and game, Chef and the stones, Chef and the XORed Number , Capital Movement, Minimum Maximum, Sum of palindromic numbers, Stacks, Chef and cakes, Almost Sorted Permutation, Bhallaladeva, Processing a string, Chef and Destruction, Distinct Codes, Devu and Perfume, Digital clock, Alternating subarray prefix, Faded Palindromes, Chef and Socks, Chef and Coins Game, Chef and Ballons, Forest Gathering, Ada and crayons, Chef And Magical Path, Maximum K Sums, Odd Divisors, Chef and Round Run, Chef and Big Soccer, Coins And Triangle, Better Maximal Sum, Sticks, Right Triangle, Art, Chefland and Electricity, Chef and Proportion, Chef and Numbers, Lumpy - The Bus Driver, Lazy Jem, Lousy Game, ChefWatson uses Social Network, The Largest Bouquet, Chef and Subset, Reservior, Nothing in Common, Chef and His Apartment Dues, Bear and Extra Number, Safe Robot, Bear and Row 01, Max Out, Bear and Candies 123, Bear and AB, Bear and Segment 01, Courses in an university, A Good Set, Chef and the Feast, Xenny and Coin Rankings, Chang and the Perfect Function, Maximize Grid Score, Calculator , IPC Trainers, Minimum Good Permutation, Max Mex, Little Chef and Sums, Total Diamonds, Chef and Weird Queries, Maximum Number, Strange Function, Pizza Party, Smart Strategy, Chef And his Cake, Penalty Shoot-out, Optimize The Slow Code, Beautiful Array, A Tale of Three Squares, Maximum Score, Multiple of 3, Chef And His Characters, Chef And The Patents, Mighty Friend, Car-pal Tunnel, Chef and Line, Jumping in the hills, Mix the Colors, Minions and Voting, Minion Chef and Bananas, Chef Goes to the Cinema, Chef Restores a Matrix, Split Sums, Three Integers, Magic Elements, Average of Pairs, The Deadly Sin, Candy Love, Chef and Replication, Family Tree, Problem Sort, Summary Power, Counting Pretty Numbers, Magic Set, Encoding Message, OR Matrix, Chef and Secret Ingredient, Chef and Bored Games, Sheokand and Number, Mixi Game, Balsa For The Three, Chef and Problem Setting, Chef and Eid, Chef and Birthday, Appy and Balloons , OneTwo, ATM Machine, Judging Delay, Chef Restaurant , Chef and Semi-Primes, Pumping Water, Chef and Card Trick, Paint the Wall, Three Friends, Coloring the Grid, Beautiful Garland, Chef and Interactive XOR, Event, Print Pattern, Choosing from Buckets, Age Calculator, Distances, Rooks, Chef and Secret Password, Game of Chef, Buying New Tablet, Chef and Party, Average Number, The Tricky Deal, Chef and Jail, Subtree Removal, Fencing, Pogo Stick Competition, Pied Piper vs Hooli, Maximum Scoring Position, Making a Meal, Chef Learning Hungarian Algorithm, Chef and Good Subsequences, Lent Money, Guddu and his Mother, Fast Food, Minimum Sum, Sum and GCD, Chain Reaction, Recover the Sequence, Chef and Pairs, Eat Twice, Drink Slush, Magda and Silly Pairs, Birthday Gift Again, Easy Math, Swapping, Smallest Beautiful Number, C - Chef and Maths, Chef and Pepperoni Pizza, Chef Drinks Coke, The Biggest Restaurant, Destroy Cells, Binary XOR, Two Groups, Tennis Tournament, Chef and Football Match, Chef and Minimum Colouring, XOR Engine, Cakewalk, D-Or, Full Barrier Alchemist, Sticky Notes, Counting Inversions Revisited, Chef Diet, Planting Trees, Pizza or Broccoli , Washing Windows, Addition, Stupid Machine, Exam Cheating, Bob and His Friends, Under the Tunnels, Pintu and Fruits, Chefina and Swaps, XOR Game, Penalty Shoot-Out II, Tax Slabs, Triple Sort, At the Gates, Not All Flavours, Mysterious Sequence, Find Your Gift, Box of Chocolates, Maximize LCM, Chef Swaps Digits, Good Prefix, Matrix Decomposition, Lift Requests, Cutting Wire, Amal’s Business, Another Birthday Present!, Chef and Numbers, Chef in Fantasy League, Chef and Recipe, Chef, Chefina and Their Friendship, Doctor Chef, Weird Walk, Convert the String, Lost Weekends, Cache Hits, Max Mex, Doof on Cartesian, Even-tual Reduction, OR-thodox Distinction, Help Martha, Find XOR, Maximum Candies, Game on a Strip, Chef and Work, Mode of Frequencies, Alien Invasion , Ratings and Rankings, Maximise Subsequence Value, Bowling Strategy, GCD operations, Root the Tree, Watermelon, Split the Str Ing, Decreasing Srrnmieeda, Path-etic Sums, AND Plus OR, Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Frog Sort, Flip the String, Chef and IPC Certificates, Gasoline Introduction, Xor Compare, Gasoline, String Operations, Self-Destructing Strings, Watching CPL, Array Swaps, Catch the Thief, Circle of Chaos, Three Letters, Minimum Attendance Requirement, One Zero Swaps, Maximum Value, Rectangle, Bodybuilder, Chef and Patients, Cheating Time, Chef and Divisors, Maximum Size, Prime Tuples, Multiple Games, College Life 2, College Life 5, Maximise Islands, Dreams of Divisibility, Binary Subsequence, Even Differences, Even Sum, Total Score, Valid String, Server Trouble, Consecutive Deletions, Students, heights and their IQs, Palpal Strings, Coprime Range, Chef and Coupon, Nobel Prize, Matrix XOR, Guess the Number, Array Kitkat, Birthday Gifts, Racing, Lunchtime, The Last Problem, Chef in Heaven , Bench Press, B - Valentine Couples, Joker and Batman, Chocolate Monger, Array Rotation, Charges, Modular Equation, Golf, Plagiarism, Double Burgers, False Number, Lazy Chef, Chef and Subarrays, Total Components, ICPC Balloons, The One On The Last Night, The One Where No One is Ready, Binary String on Steroids, Unpleasant Ones, Different String, Ceiling Sum, Beautiful Pairs, XOR-ORED, Three Points, Integer concatenation, Positive Spewing, Array Rotation Returns, Charge Scheduling, Friend Groups In A Line, Say No To Drugs, Bus full of passengers, Clear the Array, Team Formation, Programming Languages, Odd Repeat, Magical Flips, Maximise the Subsequence Sum, Longest AND Subarray, The Grid Fill Problem, Zebra Crossing, Fake Swaps, Adjacency Hatred, Make it Divisible, Another Shortest Paths Problem, MEX-OR, A Subtask Problem, Maximum Points, Maximum Light Up, Professor And Directions, Maximum Damage, FIXFIX, Cool Name, Minimise the Size, Clean The Sequence, Nice Pairs , Minimise Difference, Chef and Water Car, Exactly N plus 1 Values, Odd Sum, Average Flex, 01 Subsequence, Flip or Compress, Binary Inversion, The One with Russ, New Piece, Disabled King, Product Pain, Palindromic Binary Numbers, The One with Ross Wedding, Expected Weight, Subarray Jumps, Strange Minimization, Rapid Re-Orderings, Again XOR problem, Balance Zeroes and Ones, Maximum Factors Problem, Sleepy Chef, Marbles, Binary String Game, Tug of War, Stable Sequence, Weird Values, Brutal-Xors, Chef and Pal, RGB Construction, Equal Integers, Subarray permutations, Optimal Sorting, Count Number of Peaks, ChefWM, And Or Union, Covid and Theatre Tickets, Chef and Riffles, Prefix Zeros, Sum and OR, Mask Policy, Merged LIS, Merging Binary Strings, Anti Palindrome, Avoid Contact, Permutation XOR Sum, Building Towers, Divisors and Reciprocals, Yet Another Constructive Problem, EVM Hacking, Equal MEX, Fixed Weight, Perfect Permutation, Points and Lines, String Reverse, Stone Game, Distinct Binary Strings, Non Coprime Neighbours, Prefix Permutation, The product mystery, Four Equidistant Points on a Grid, Parallel Processing, Travelling in the Graph, Permutation Xority, Magnet Sort, Count the Holidays, Janmansh at Fruit Market, Dragonado And XOR, Equal Mex Splitting, Subarray XOR, Alternating Divisibility, Minimum Coloring, Gift Shop and Coupon, Chef and Water Bottles, Sad Splits, Winter, XOR and AND, Alternating String, Sign Moves, The Unchanging OR, Binary String Cost, Finding Shoes, Flip Sorting, Bucket and Water Flow , Funny Hand, Broken Life, Dark Light, Chef Find XOR Beautiful, Binary Mismatch, Average Array, Good Permutation, Buckets Full of Candies, Pair Pain, Palindrome Pain, Admins and Shopping, Dazzling Even-Odd Challenge, Compress the Video, Buying Sweets, Presents for Cheffina, Easy Permutation, Array Equality, Different Subarrays Rearrange, Doubled Distances, Triple Inversions, Beat the Average, Infernos, Maximum OR Minimum, Closest Vowels, Even Subarray XOR, Even Equal Odd, Infinity Staircase, Good Pairs, Remove and Add, Is this priority or parity!, Path Parity, Simple XOR, Break the Stick, Reduce to zero, Maximise Set Bits , Minimum or Maximum, How Many Maximums, Possible GCD, Zero Ones Equal One Zeros, Make them Equal, Distinct Palindrome, Equal by XORing, Jogging, Make all equal using Pairs, Retrieve the Array, Adjacent Sum Parity, K-MEX, Copy and Push Back, Similar Heights, End Sorted, Easy Pronunciation, Positive array, Hungry Chef, High Frequency, Monks, Valid Minimum, Air Blimp, Permutation GCD, Sum Product Segments, Average Permutation, Split N, Different Medians, Angled Flip, Minimum Sum, WA Test Cases, K-Flip, Black&White Ring Game, Odd Pairs, Make A and B equal, Equal Distinct, Team of Two, Balls and Boxes, Distinct Numbers, Mean and Median, OR Tuples, Pokemon Battles, Maximize Colours, Stick Break, Permutation Creation, Maximum Expression, Even Splits, Two Different Palindromes, Increasing Addition, Equivalent Numbers, Maximum Subarray , Suspense String, Confusing Concatenations, Red Green Grids, Yet Another Palindrome Problem, Tri XOR, Paper Cutting, Palindrome Flipping, Card Removal, Minimise LCS, Subarray Removal, Sorted Substrings, Make Multiple, Final Sum, Nahaane Jaa, Maximize 1s, One-XOR Deletions, Make Length 1, Greedy Grid Moves, Maximum Angriness, Luigi and Uniformity, Range Assign, Number of Distinct Elements Minimize, Candies, Binod, Distinct Neighbours , Minimize swaps, Water Mixing, Good Binary Strings, Palindrome by Splitting, Connect All Cities, Palindrome In Making, Chef and Spice Grid, Just Like Mob!, Musical Rods, Expensive Steps , Counting Problem, Existence Of X, Pet Store, Frequency Array Retrieval, Snapchat, Perfect Trio, N Triplets, Redistributing Chocolates, Minimal Inversions, Equal Hamming Distance, Prefix Ones, Three Powers of Two, Two Ranges, Make Array Odd, Zero String, Contruct Array, 400M Race, Love Squares Hate Cubes, Not Divisible, Take Not Less, Alice Potter And Dumbledore Army, Permutation and Modulus, Spreading Charges, Tekken, Concat Palindrome, Three Numbers, Valid Expression, Mountain, One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums, Better Deal, Permutation Subsequence, Prefix Permutation, Single-use Attack, Running Comparison, Equal Elements, Good XOR, Divide Pages, Find eX, Make A-B Same, Reach Home, Difference Matrix, MIN To MAX, Chef Eren, Construct String, Max count of 1, Elections in Chefland, Max Binary, Chef And Adjacent Sums, Melt Gold, Crazy Bishops on Chessboard, Efficient PAN Linking, Return the Change, Inside The Stadium, Can Chef , String Game , Cricket Match, Chef and Asteroids, Chef and Battery , Maximise Score, Existence, Monopoly, Plus 2 or Minus 1, AB plus C, Positive or Negative Subarrays, Crushed Apples and a Balance Scale, DDMM or MMDD, Largest and Second Largest, AP Free Sequences, Printing Binary Array, Rectangular Tiling, Odd GCD Permutation, Chef Odd, Blobby Volley Scores, Gymkhana Election IIIT-A, CodeChef Streak, Possible or Not, The Vowel Matrix, Dotify Playlist, Water Filling, 7 Rings, Problem, Alt-Tab, Transfusion Chain, EVacuate to Moon, Swap the numbers, Remove Multiples, FIND A and B, Bells of Pilgrimage, Weeding, Caesar Cipher, Schrodinger Smiley, No Palindrome, Airport Management, Triplets Min, Ball Distribution, Best of Two, Segment Three, Two Piles, Card Swipe, Endless Appetizers, Prime Permutation, Exclusion-Inclusion, Codechef Copy, Stamps 100, Concussive Sequence, Work Smarter, Not Harder, Parity Permutation, Bit Play, Array Sum, Selling Insurance, Chef and Stocks, First Problem on SQL, Playing with OR, Save People, Sunday Brunch, Divisible By 8, Dice Number, Lexicographically Largest , Maximise Sum, Santa and Chocolates, Pizza Cutting, GCD and LCM, Take it Easy, Dull Operation, Wishcraft, Minimum XOR, Adjacent Flips, Clan Expansion, Chess Pairing, OR Permutation, Best of N Sets, Worth of a Video, Alter Ego, Airlines, Marbles, Am I Lucky!, Monsters, LCM Mania, Prefixing, Beautiful Strings, Cursed Indices, Fair Share Settlement, 3 Logicians Walk into a Bar, Yet Another Array Game, Permutation Construction, Max Nutrition, Minimise Maximum Subarray Sum, Make All Equal, Yet another Matrix problem, Maximum Score , Sum Neq , Make N Zero, Rock-Paper-Scissors, Greedy LIS Algorithm, Painting Walls, Christmas Candy, Make All Zero, A PLUS B Remastered, Decorating Christmas Tree, Chocolate Distribution, Chef Product, Spread Spree, Stingy Arrays, Not Prime Permutation, Weapon Choice, Spell Shortening, Subset GCD, Literacy Rate, Join States, Xorry 2, Xorry 1, Judged, Cookie Day, Another Good String , K Odd Sum, Count Subarrays, Largest K, Sub or Swp, Valentine Gifts, Frequal, Split And Maximize, Caesar Cipher Lite, Room Allocation, Maximise Adjacent Sum, Check Adjacent Sum, Minimum And Maximum I, The Man Code, Problem Reviews, Arya In Grid, Transformation Cost, Man of the Match, Minimum And Maximum II, Bucket Game, Binary Parity, Table Strength, Swap and Unite, Make It One, Cricket Tournament, 50-50 Rule, Fake Certificate, Binary Minimal, Dice Game 3, Freedom, Sale, Permutation Disturbance, Triangular Swaps, ABC Conjecture, Superincreasing, Extreme Basketball, Anti-Triangle, Binary Substring, XOR And Multiply, Moody Chef, MEXimize the Array, Disjoint Non-Decreasing Array, Pep Bidding, Ballon d Or, Make Equal, Alternating Binary String, Swapping Marks Digits, Good Binary String, Gotta Catch Em All, Dice Deception
Contests (286):
December Challenge 2018 Division 2:
Max and Electrical Panel, Chef and Meatballs, Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2019 Division 2:
Different Neighbours, Lucky Number Game, Distinct Pairs, Fancy Quotes
February Challenge 2019 Division 2:
Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
March Challenge 2019 Division 2:
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit, (Challenge) Interleaving Strings
October Challenge 2019 Division 2:
Even Edges, Missing Number, Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices
December Challenge 2019 Division 2:
Chefina and Ranges, Plus Multiply, Easy Subsequence Selection, That Is My Score!
February Challenge 2020 Division 2:
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
April Challenge 2020 Division 2:
Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
June Challenge 2020 Division 2:
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
August Challenge 2020 Division 2:
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP
September Challenge 2020 Division 2:
Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Ada Matrix, Coronavirus Spread 2
December Challenge 2020 Division 2:
Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
March Challenge 2021 Division 2:
Interesting XOR!, College Life 4, Consecutive Adding, Paparazzi Gennady, Space Arrays
June Challenge 2021 Division 2 (Unrated):
Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat
August Challenge 2021 Division 2 (Unrated):
Special Triplets, Array Filling, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking
September Challenge 2021 Division 2 (Unrated):
XOR Equal, Shuffling Parities, 2-D Point Meeting, Airline Restrictions, Travel Pass
November Challenge 2021 Division 2 (Unrated):
Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper, Maximise the bridges
December Challenge 2021 Division 2 (Unrated):
Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists
December Lunchtime 2021 Division 3:
Chef and Vacation Transportation , Chef Loves 1010, Maximum Trio, Romantic Reversals
January Long 2022 - II, Division 3 (Rated):
Power Sum, Crying Colours, TCS Examination, Chef and Fixed Deposits
January Cook-Off 2022 Division 2:
Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility
CodeChef Starters 29 Division 2 (Rated):
String protocol, Plusle and Minun on Array, Decomposition Reaction
April Long One 2022, Division 2 (Unrated):
Dazzling GCD Pair, Prime Sum, Dazzling AXNODR Challenge , Pairwise Xors
July Long One 2022 Division 2 (Unrated):
Journey of the Knight, Game of Piles Version 1, Slow Solution
October Long 2022 Division 2 (Unrated):
Binary Substituition, Single Operation Part 1, Single Operation Part 2
January Long 2023 Division 3 (Rated):
Asymmetric Swaps, Minimize the Maximum, Array Halves, Far from origin
Learning Paths (0):
None
Practice Paths (47):
Jump from 2* to 3*:
Make it Divisible, Indivisible Permutation, Distinct Pair Sums, Count Subarrays, Digit Longest Increasing Subsequences 2, Gravity Guy, Minimum Number of Pizzas, Arranging Cup-cakes, Alternating Work Days, Appy and Contest, Chef and Keyboard, Chef and Linear Chess, The Nights Watch, Largest Family
Rise from 3* to 4*:
Maximum Size, Ada King, Snakes and transition from Capitalism to Socialism, IS IT DSU HARD!!, Find Tree Diameter, Root the Tree, Wealth Disparity, Queries with Bags, Moving Segments, India Fights Corona, Prime Tuples, The White Knight
Contributions
Problems Authored (0)
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Problems Tested (0)
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Editorials Contributed (0)
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