Robby
- robby75
India- Other
- No Active Plan. View Details
Submissions Heat Map
Learning Paths (4)
Practice Paths (4)
Practice Python
Data Structures Interview Questions
Jump from 2* to 3*
Level up from 1* to 2*
Completed
Contests (187)
December Challenge 2017
Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays
January Challenge 2018
Rectangle
February Challenge 2018
Chef And His Characters, Chef And The Patents, Akanksha and End of Semester, Car-pal Tunnel, (Challenge) Biased Committee, Permutation and Palindrome
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove
April Challenge 2018 Division 2
Chef and Array (Challenge), Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers
June Challenge 2018 Division 1
Vision
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests, Chef and Happiness
LoC April 2018 (Rated for Division 2)
Cricket Score, Bob and Pallindromes
December Challenge 2019 Division 2
Plus Multiply, Easy Subsequence Selection, That Is My Score!
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
February Challenge 2020 Division 2
The Theatre Problem, School of Geometry, Hard Cash
March Challenge 2020 Division 2
Pintu and Fruits
April Challenge 2020 Division 2
Sell All the Cars, COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread
June Challenge 2020 Division 2
The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Ada King, Chef and Card Game, Chef and Strings
November Challenge 2020 Division 2
Ada and Dishes
December Challenge 2020 Division 2
Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Point Of Impact, Encoded String
February Challenge 2021 Division 3
Frog Sort, Chef and Meetings, Maximise Function, Highest Divisor
March Challenge 2021 Division 3
Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait
April Challenge 2021 Division 3
Chef and Dice, Valid Pair, World Record, Strong Language
May Challenge 2021 Division 3 (Rated)
Xor Equality, Golf, Solubility
June Challenge 2021 Division 3 (Rated)
Bella ciao, Summer Heat
July Challenge 2021 Division 3 (Rated)
XxOoRr, Chef vs Bharat, Maximum Production, Relativity
August Challenge 2021 Division 3 (Rated)
Olympics Ranking
September Challenge 2021 Division 3 (Rated)
Shuffling Parities, Airline Restrictions, Travel Pass
October Challenge 2021 Division 3 (Rated)
Longest AND Subarray, Three Boxes, Which Mixture
November Challenge 2021 Division 3 (Rated)
Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper
December Challenge 2021 Division 3 (Rated)
Check Mate, Valleys and Hills, Utkarsh and Placement tests
Code Drive Division 3 (Rated)
Favourite String of Chef
January Long 2022 - I, Division 3 (Rated)
Keplers Law, Prime in a binary string, Covid Spread
January Long 2022 - II, Division 3 (Rated)
TCS Examination, Chef and Fixed Deposits
Exun 2021-22 Division 3 (Rated)
Vishesh and his Popcorn Combo, Sarthak and his Magic Grid
CodeChef Starters 23 Division 3 (Rated)
Chef and Profits
January Lunchtime 2022 Division 3
Chef and Subset Additions, Chef and Lockout Draws
CodeChef Starters 24 Division 3 (Rated)
Avoid Contact, Badminton Serves, EVM Hacking
February Long 2022 - I, Division 3 (Rated)
Binary Base Basics, N Queens Puzzle Solved !, Chef and the Hair Salon
CodeChef Starters 25 Division 3 (Rated)
Points and Lines, Fit in Data Type, Chef and His Fruit Stand
February Cook-Off 2022 Division 3
Perfect Permutation, Lazy Salesman, Peaceful Party
February Long 2022 - II, Division 3 (Rated)
Avoid Fixed Points, World Chess Championship, Chef and NextGen, Xor Palindrome
CodeChef Starters 26 Division 3 (Rated)
Careless Chef, Count the Notebooks, Hostel Room
CodeChef Starters 27 Division 3 (Rated)
Distinct Binary Strings, Too many items, Blackjack, The product mystery
February Lunchtime 2022 Division 3
Four Equidistant Points on a Grid, Good Program, Watching Movies at 2x
CodeChef Starters 28 Division 3 (Rated)
Self Defence Training, Car Choice, Count the Holidays
March Long One 2022, Division 3 (Rated)
Akash and Function, Akash and Missing Class, Exact Marks, Wordle
March Long Two 2022, Division 3 (Rated)
Chef and Races, The Rating Dilemma
CodeChef Starters 30 Division 3 (Rated)
Chef and Water Bottles
March Cook-Off 2022 Division 3
Janmansh and Games, Janmansh at Fruit Market
CodeChef Starters 32 Division 3 (Rated)
Binary String Cost, Finding Shoes
April Long One 2022, Division 3 (Rated)
Dazzling GCD Pair, Dazzling AXNODR Challenge , The Cooler Dilemma 2
April Lunchtime 2022 Division 3(Rated)
Mario and Bullet, Palindrome Pain
April Long Two 2022 Division 3 (Rated)
Geometric Mean Inequality, Sasta Shark Tank, Best Coupon, Pseudo Sorted Array
May Long One 2022 Division 3 (Rated)
Pushpa , Sugarcane Juice Business, The Attack of Queen
May Long Two 2022 Division 3 (Rated)
Xor Palindrome, Score High, Make them Zero, Degree of Polynomial
June Long One 2022 Division 3 (Rated)
Subscriptions, Divisible by i , Alternate Additions, Equal Strings
June Long Two 2022 Division 3 (Rated)
Count the ACs, Make all equal using Pairs, Complementary Strand in a DNA, Strong Elements
July Long One 2022 Division 3 (Rated)
Game of Piles Version 1, Slow Solution, Pass the Exam, Chef and Candies
July Long Two 2022 Division 3 (Rated)
Chef in his Office, Hungry Chef
August Long 2022 Division 3 (Rated)
Sale Season, Hello Equation, Two Trains, Make A and B equal
September Long 2022 Division 3 (Rated)
Speed Limit Test, Bob at the Bank, Good Pairs
October Long 2022 Division 3 (Rated)
Building Race, Single Operation Part 1, Single Operation Part 2
November Long 2022 Division 3 (Rated)
String Game
Starters 69 Division 4 (Rated)
Rain in Chefland, Scalene Triangle, Convert to permutation
Starters 70 Division 3 (Rated)
Cost of Groceries
Starters 71 Division 4 (Rated)
Pet Store, Instagram, Snapchat, Perfect Trio
December Long 2022 Division 3 (Rated)
Divisible by K, Reach fast
Starters 72 Division 4 (Rated)
Indivisible, Apples and oranges, N Triplets, Sum it
Starters 75 Division 4 (Rated)
Two Ranges, Saving Taxes, Profit Increment
January Long 2023 Division 3 (Rated)
Far from origin
Starters 76 Division 4 (Rated)
Redistributing Chocolates, Read Pages, Zero String, 400M Race
February Cook-Off 2023 Division 4 (Rated)
Battery Health, Netflix
Starters 77 Division 4 (Rated)
Tekken, Tom and Jerry Chase, Codechef Airlines
Starters 78 Division 4 (Rated)
Passing Marks, Candy Store, Good Turn
Starters 79 Division 4 (Rated)
Distinct Opposite Sums, Better Deal, Ageing
Starters 80 Division 4 (Rated)
Just One More Episode, Single-use Attack, Running Comparison, Equal Elements
Starters 81 Division 4 (Unrated)
Divide Pages, Maximum Capacity, Sunny Day
Starters 82 Division 4 (Rated)
Reach Home, Difference Matrix, MIN To MAX, Candy Division
Starters 84 Division 4 (Rated)
Chef and Donation, Elections in Chefland, Max Binary
Starters 85 Division 4 (Rated)
Efficient PAN Linking, Inside The Stadium, IPL Ticket Rush, Can Chef
Starters 86 Division 4 (Rated)
Cricket Match, Chef and Battery , CodeChef Learn Problem Solving
Starters 87 Division 4 (Rated)
Four Tickets, Buy Ten Packets, Existence
Starters 83 Division 4 (Rated)
Chef Eren, Budget of Technex, Couple Game
Starters 88 Division 4 (Rated)
Masterchef finals, Online or Offline, Largest and Second Largest
Starters 89 Division 4 (Rated)
Monopoly, Plus 2 or Minus 1, Parliament, DDMM or MMDD
Starters 90 Division 4 (Rated)
Learning SQL, Printing Binary Array, Favourite Numbers
Starters 91 Division 4 (Rated)
Odd GCD Permutation, Bus Seat Numbering, Parking Charges
Starters 92 Division 4 (Rated)
Dotify Playlist, Water Filling, Oneful Pairs
Starters 93 Division 4 (Rated)
Right There, 7 Rings, Problem
Starters 94 Division 4 (Rated)
The Gift, Gymkhana Election IIIT-A, CodeChef Streak
Starters 95 Division 4 (Rated)
Donation Drive, Donation Rewards
Starters 96 Division 4 (Rated)
Bells of Pilgrimage, Weeding, AB Difference
Starters 97 Division 4 (Rated)
Caesar Cipher, Schrodinger Smiley, 2000, Best of Two
Starters 99 Division 4 (Rated)
Card Swipe, Endless Appetizers, Puzzle Hunt
Starters 100 Division 4 (Rated)
Chocolate Distribution
Starters 101 Division 4 (Rated)
Warrior Chef, Work Smarter, Not Harder, Lockpicking Chef
Starters 102 Division 4 (Rated)
Sports Section, Selling Insurance, Chef and Stocks
Starters 104 Division 4 (Rated)
Santa and Chocolates, Pizza Cutting, Double Rent, GCD and LCM
Starters 105 Division 3 (Rated)
Dracula Eats
Starters 106 Division 4 (Rated)
Fan Poll, Chef Fantasy 11, Playing with OR, Survival Time
Starters 108 Division 4 (Rated)
Rivalry, Chess Pairing
August Long 2023 Division 4 (Unrated)
All New CodeChef, Maximum Deliciousness, I Can Use Both Hands!
September Short 2023 Division 4 (Unrated)
Lucky Seven, Slow Start, Mixing Extraordinaire
SQL Contest (Unrated)
First Problem on SQL, Number of Distinct Institutes, Div 2 Ranklist
Starters 111 Division 4 (Rated)
Reach Codetown, Exams, 404 Not Found
Starters 112 Division 4 (Rated)
Food Costs, Fair Share Settlement, 3 Logicians Walk into a Bar, Max Nutrition
Starters 113 Division 4 (Rated)
Sum Neq
Starters 114 Division 4 (Rated)
Painting Walls, Christmas Greetings
Starters 116 Division 4 (Rated)
Hattrick, Minimum Wage, Access Control
Starters 117 Division 4 (Rated)
Not Prime Permutation, Weapon Choice, Spell Shortening, Yearly Phone
Starters 121 Division 3 (Rated)
The Man Code
Starters 123 Division 4 (Rated)
Room Allocation, Algomaniac Finals, Maximise Adjacent Sum, Minimum And Maximum I
Starters 122 Division 4 (Rated)
Healthy Sleep, Problem Reviews, Man of the Match
Starters 124 Division 4 (Rated)
Binary Parity, Summer Time, Cricket Tournament
Starters 125 Division 4 (Rated)
Overspeeding, 50-50 Rule, Fake Certificate
Starters 127 Division 4
Superincreasing
Starters 129 Division 4 (Rated)
Football Training, Pep Bidding, Ballon d Or
Starters 130 Division 4 (Rated)
Make Equal, Alternating Binary String, Giant Wheel, Swapping Marks Digits
Starters 131 Division 4 (Rated)
Remaining Neighborhoods, Gotta Catch Em All, Dice Deception
Starters 132 Division 4 (Rated)
Change Please, ICE CREAM, GAME 11
Starters 133 Division 3 (Rated)
Legs on a Farm, Maximum Alternating Sum
Starters 134 Division 4 (Rated)
Morning Run, Money Double, Rock Paper Scissors
Starters 135 Division 4 (Rated)
Invert And Equalize, Football Ties, RCB vs CSK
Starters 136 Division 4 (Rated)
Who Makes P1, My First Geometry Problem
Starters 137 Division 4 (Rated)
Election Hopes, Spell Splice
Starters 138 Division 4 (Rated)
Heat Wave, Long Drive, Distinct Substring
Starters 139 Division 4 (Rated)
Television Channels
Starters 140 Division 4 (Rated)
Make Permutation, Trick Or Treat, Yoga Day, Yoga Class
Starters 141 Division 4 (Rated)
Nearly Equal, Lucky Clover
Starters 142 Division 4 (Rated)
Chef loves Pizza Chef loves halfs, Writing Speed, Penalty Shoot-out
Starters 143 Division 4 (Rated)
International Justice Day, Maximum Coins
Starters 144 Division 4 (Rated)
Capital Gain Tax, Budget Allotment, Savings Account
Starters 145 Division 4 (Rated)
Volume Comparison, Gun Master, Make My Array Equal
Starters 146 Division 4 (Rated till 5 stars)
No Winner, Olympics 2024
Starters 148 Division 4 (Rated)
Let Me Eat Cake!, Clearance Sale
Starters 149 (Rated)
Magical World, Approximate Answer
Starters 150 (Rated)
Find Multiset State, IOI 2024, Ratio By 2
Starters 151 (rated)
Weightlifting
Starters 152 (Rated)
Chess Olympiad, Range Minimize
Starters 153 (Rated)
AI is Coming
Starters 154 (Rated)
Add 1 or 2 Game, Calorie Limit, Coldplay Tickets
Starters 155 (Rated)
Chef and Parole, Rectangled
Starters 156 (Rated)
Sweets Shop, Long Queue, Even Numbers Hate
Starters 160 (Rated)
Too Many Oranges, Movie Snacks
Starters 161 (Rated)
Moneymaking, Selling Donuts
Starters 162 (Rated)
Adjacent Sum Array, Calorie Intake, Assignment Score
Starters 170 (Rated)
Access Code Equality, Monster Monster, Minimum Bottles
Starters 171 (Rated)
Squid Game - Piggy Bank, Swish Game, Advitiya
Starters 172 (Rated)
Time Machine, Small Palindrome
Starters 173 (Rated upto < 2700)
Time Penalty
Starters 174 (Rated)
Too Much Homework!
Starters 175 (Rated)
Assignment Due, Technex Tickets
Starters 176 (Rated)
Run for Fun
Starters 177 (Rated)
Ordered Distances, Triangle Checking, 2 Boxes
Starters 178 (Rated)
Food Balance
Starters 179 (Rated)
Lost in the Fest!!, Conquer the Fest!!
Starters 180 (Rated)
CodeMat
Starters 181 (Rated)
Move Grid, Breaking Sticks
Starters 182 (Rated)
IPL, Bar Queue
Starters 183 (Rated)
Larger Smaller, Max Sixers, Max Triangle
Starters 184 (Rated)
Multiple of 3
Starters 185 (Rated)
Pizza Split, Balanced Lighting
Starters 186 (Rated)
Approval Ratings, Best Movie, Chess Win
Starters 187 (Rated)
Exercise and Rest, Chococut, Incremental Game
Starters 188 (Rated)
Red and Blue Gems, Subset Sum 3, Train Even or Odd
Starters 189 (Rated)
Nutrition Cost, Distinct 2 Subarray, Pizza Party
Starters 190 (Rated)
Maximum Slams, Number Reduction
Starters 191 (Rated)
Divide into 3, Nearest Square
Starters 192 (Rated)
Missing Shoes, No Odd Sum
Starters 193 (Rated)
Count Odd Even Divisors, Rectangle and Square
Starters 194 (Rated)
Chef Bakes Cake 1, Chef Bakes Cake 2, Chef Bakes Cake 3
Starters 197 (Rated)
Independence Day, All Odd Prefix Sums, Bowling Balls
Starters 198 (Rated)
Make Cat, Decoration Discount
Starters 199 (Rated)
Brick Comparisions, Cake Making
Starters 200 (Rated)
Chef Bakes Cake
Starters 201 (Rated)
Selling Coins, Mixing Liquids
Starters 202 (Rated)
Endless Play, Buying Flowers, Two Rolls
Starters 203 (Rated)
Cab Rides, Coloured Orbs, Passing Grade
Starters 204 (Rated)
Triangles, Drawing Chances, Episodes
Starters 205 (Rated)
Cute Strings, Mirror Jump, Triplet Maximization
Starters 206 (Rated)
Cyclic Shift Minimization, Remaining Money, Gladiator Fighting, Prime Sum, Expensive Buying
Starters 210 (Rated)
Notebook Counting
Starters 211 (Rated)
Fuel Check, Buying Chairs, Wolf Down
Starters 214 (Unrated)
Dice Play, Chef and Close Friends
Starters 215 (Rated)
Special Missions, Gem Bundles, Competition of 4
Starters 216 (Rated)
Scoring, Best Seats, Entertainments
Starters 217 (Rated)
Make An AP, Playing with Toys, Add to make Positive, Add 1 or 3
Starters 218 (Rated)
Deleting Array Again, Christmas Trees, Coloured Balloons, Stop The Count
Starters 219 (Rated)
New Operation, Pizza Comparision, Cake Baking
Weekend Dev Challenge 29: SQL Projects
Challenge 1 - Daily Order Count
Weekend Dev Challenge 30: SQL Projects
Challenge 1 - Academic Email Directory