Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.
From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.
Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.
From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.
Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.
From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.
Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.
From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.
Rookie League
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(2026-01-14 22:00:00)Ratings System Update
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Coronavirus Spread, Isolation Centers
Chef and Recipe, Chef, Chefina and Their Friendship
Weird Walk, Lost Weekends
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
Ada King, Chefina and Swaps, Missing a Point, Chef and Card Game, Chef and Strings
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP
Chefina and Swap, Chef and Trump Cards, Ada Matrix
Chef and Steps, Maximum Candies
Polygon Relationship, Chef and Work, K-Foldable String
Game on a Strip, Mode of Frequencies, Ratings and Rankings
Cache Hits, Max Mex
Maximum AND, Chef and Demonetisation, Increasing Decreasing
Chef and Ants, Expected Number of SCCs, Watching CPL, Fair Elections
Hail XOR, String Operations, Positive Prefixes, Even Pair Sum
Prime Tuples, Maximise Islands
Path-etic Sums, Yet Another Crossover Episode
Flip the String, Chef and IPC Certificates, Graph Construction
Chef vs Doof, Doof on Cartesian
Bulbs and Wires, Bowling Strategy
Frog Sort, Team Name, Prime Game, Multiple Games, XOR Sums, Maximise Function, Highest Divisor
Palpal Strings, Coprime Range
Rectangle, Chef and Patients, Body Mass Index, Total Score
Dinner by Candlelight, Racing, Lunchtime
College Life 5, Server Trouble, Nobel Prize, Possible Victory
OR of ANDs, Chocolate Monger
Chef in Heaven , Bench Press, Array Rotation
The Last Problem, Double Burgers, Chef and Subarrays
Charges, Tom And Jerry 1
Cheating Time, Plagiarism, Lazy Chef, Correct Sentence
Valid Paths, Tree House, An Interesting Sequence, Xor Equality, Tic Tac Toe, Modular Equation
Bitwise Tuples, Bella ciao, Summer Heat
Too Much Xor, Binary String on Steroids, The Wave
From Rational to Binary, False Number, Unpleasant Ones
Cyclic Quadrilateral
Beautiful Subsequence, XOR-ORED, Mod Equality
Olympics Ranking
XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass
Prefix as a Substring 2, Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference
Round Robin Ranks , Dance Moves, Min Max LCM
Queens Placement , Largest Laddu, Help Nishant
Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper, Maximise the bridges
Product Pain
Alphabet Difference, Divide Students Into Classes, Queries in an Array
Binary Inversion, GCD of Prefixes
Compare those strings, Make them equal
The One Where No One is Ready, The One with Russ, The One with All the Candy, The One Where It All Began, The One with Ross Wedding
Magical Planks, Clean The Sequence, Substring Minimum Function, Can_Reach, Kingdom Attack
Subarray Jumps
Valleys and Hills, Rock Paper Scissors
Subarray Mex
Special Substring, Matrix Rotations, Unique Subset, Longest Substring Without Repeating Characters, Chef and Consecutive Ones, Birthday Chocolates
Check for BST, Move all the zeros to the last, Chef and Pair of Elements, Chefs profits
Odd Operations
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