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Activity Heat Map
Learning Paths (12)
Binary Search
Learn Kotlin
Dynamic programming
OOPs concepts in C++
CSS Intermediate
C++ Problem Solving
Beginner DSA in C++
Learn C++
UX for Web developers
Learn Advanced SQL
Learn HTML / CSS
Learn SQL
Practice Paths (11)
Practice for ZCO and INOI
Stacks and Queues
Dynamic programming
Jump from 2* to 3*
Data Structures Interview Questions
Binary Search
SQL Practice Queries
Greedy Algorithms
Number theory
Arrays, Strings & Sorting
Level up from 1* to 2*
Contests (40)
Starters 70 Division 4 (Rated)
Kitchen Timings, Spice Level, Cost of Groceries
Starters 71 Division 4 (Rated)
Instagram, Snapchat, Perfect Trio
Starters 72 Division 4 (Rated)
Indivisible, Sum it
Starters 73 Division 4 (Rated)
Multivitamin Tablets, Lucky Numbers
Starters 74 Division 4 (Rated)
Facebook, Mana Points, Chef And Babla, Odd Even Binary String
Starters 75 Division 4 (Rated)
Three Powers of Two, Two Ranges, Saving Taxes, Profit Increment
January Long 2023 Division 4 (Rated)
Array Halves, Far from origin, Overspeeding Fine, Negative Product
Starters 76 Division 4 (Rated)
Redistributing Chocolates, Read Pages, Zero String, 400M Race, Not Divisible
February Cook-Off 2023 Division 4 (Rated)
Battery Health, Take Not Less, Bi_lindrome!, Permutation and Modulus, Netflix
Starters 77 Division 3 (Rated)
Tekken, Tom and Jerry Chase, Codechef Airlines
Starters 78 Division 3 (Rated)
Valid Expression, Passing Marks, Candy Store, Good Turn
Starters 83 Division 3 (Rated)
Chef Eren, Budget of Technex, Couple Game
Starters 97 Division 4 (Rated)
2000, Best of Two
Starters 98 Division 4 (Rated)
Messi vs Ronaldo, FIND A and B
Starters 99 Division 4 (Rated)
Card Swipe, Endless Appetizers, Puzzle Hunt, Exclusion-Inclusion
Starters 100 Division 3 (Rated)
Stamps 100, Air Quality Index, Trade Surplus, Chocolate Distribution
Starters 101 Division 3 (Rated)
Warrior Chef, Work Smarter, Not Harder, Lockpicking Chef, Off By One
Starters 102 Division 3 (Rated)
Bit Play, Sports Section, Selling Insurance, Chef and Stocks
Starters 103 Division 3 (Rated)
Sunday Brunch, Dice Number
Starters 104 Division 3 (Rated)
Santa and Chocolates, Pizza Cutting, Double Rent, GCD and LCM
Starters 106 Division 3 (Rated)
Fan Poll, Chef Fantasy 11, Playing with OR, Survival Time
Starters 107 Division 3 (Rated)
Rock Paper Scissor, Pending Assignments, Clear Day, OR Permutation
Starters 108 Division 3 (Rated)
Palindromic Prime Numbers, Rivalry, Chess Pairing
Starters 109 Division 3 (Rated)
Cricket World Cup Qualifier, Best of N Sets, Worth of a Video
August Long 2023 Division 3 (Unrated)
All New CodeChef, Maximum Deliciousness, I Can Use Both Hands!
September Short 2023 Division 3 (Unrated)
Lucky Seven, Slow Start, Mixing Extraordinaire
SQL Contest (Unrated)
First Problem on SQL, Number of Distinct Institutes, Div 2 Ranklist
Starters 110 Divison 3 (Rated)
Water Park, Airlines, Marbles, Am I Lucky!
Starters 111 Divison 3 (Rated)
Reach Codetown, Exams, 404 Not Found
Starters 112 Division 3 (Rated)
Cursed Indices, Food Costs, Fair Share Settlement, 3 Logicians Walk into a Bar, Max Nutrition
Starters 113 Division 3 (Rated)
Maximum Score , Sum Neq , Make N Zero, Thala For A Reason
Starters 114 Division 3 (Rated)
Painting Walls
Starters 115 Division 3 (Rated)
Greedy LIS Algorithm, A PLUS B Remastered, Decorating Christmas Tree, Chocolate Distribution, Codechef Round
Starters 117 Division 3 (Rated)
Not Prime Permutation, Spell Shortening, Yearly Phone
Starters 121 Division 3 (Rated)
Caesar Cipher Lite, Anti Adjacent Swaps, The Man Code
Starters 124 Division 3 (Rated)
Binary Parity, Table Strength, Summer Time, Cricket Tournament
Starters 125 Division 3 (Rated)
Bucket Game, Overspeeding, 50-50 Rule, Fake Certificate, Binary Minimal
Starters 126 Division 2 (Rated)
Freedom, Permutation Disturbance
Starters 127 Division 2
Superincreasing, Extreme Basketball, Anti-Triangle
Starters 133 Division 2 (Rated)
Powered Parameters, Legs on a Farm, Devouring Donuts, Maximum Alternating Sum
Starters 134 Division 2 (Rated)
Origin, Morning Run, Rock Paper Scissors
Starters 139 Division 2 (Rated)
Maximum Distance Permutations
Starters 154 (Rated)
GCD and XOR, Triangle Count (Easy), Add 1 or 2 Game, Calorie Limit, Coldplay Tickets