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(2025-08-20 23:00:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Contests (56)
October Long Contest 2011
Dish Distribution, The Great Plain, The Baking Business, Repeated String, Lucky Palin
November Long Contest 2011
Colored Domino Tilings and Cuts, Chefs new Pet, New Restaurant, The Postal Service, Stepping Average, Lucky Days
November Cook-Off
Colorful Chain, Moving Coins, Subanagrams, Graph on a Plane
December 2011 Long Contest
Birthday Gift, Robot Movings, Ciel and Eggs, Spinning Wheels
December Cook-Off
Ciel and New Menu, Ciel and Quiz Game, Ciel and A-B Problem, Ciel and Battle Arena
January 2012 Challenge
Misinterpretation 2, Ambidextrous Chefs, Houses and Restaurants, Gap Filler Game, Lucky Sum, Card Shuffle
January Cook-Off
Collision in Space, Makx Sum, Remys last tour, Moving between Floors, Zeta-Nim Game
February 2012 Challenge
Box and Ball System, Lucky Count, Restore the Recipe, Can you do it better, Lucky Long, Find a Subsequence, Smart Chef vs Evil Chef, Word Couting, Count of Maximum
March 2012 Challenge
Longest Weird Subsequence, Cosine Partition Function, Evil Book, Lucky Number, Free Shuttle Service, Home Delivery, Spoon in Matrix, Xor it
April Challenge 2012
PDS Number, Lucky Array, Parallel Computing, Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight, Similar Graphs
April Cook-Off 2012
Selection for Training Camps, Top Batsmen, Crease Painting, Resistance, Best Buggy Ratings
May Challenge 2012
Digits Forest, Killing Gs, Little Elephant and Median, Jewels and Stones, Lucky lucky number, Divisible Pairs, Remember the recipe, Little Elephant and Boxes, A Home for Chef
May Cook-Off 2012
Little Elephant and Filling, Little Elephant and Balance, Little Elephant and Swapping, Little Elephant and Strings, Little Elephant and CNSes
June Challenge 2012
Closest Points, Polynomial Partition Function, Little Elephant and Product, Little Elephant and Candies, Magic Hull, Doom Bakes Cakes, Fly-overs, Arranging Cup-cakes
June Cook-Off 2012
Closing the Tweets, Connecting Soldiers, Golden Trees, Gifts at Olympics, Alien Chefs
November Challenge 2012
A Wonderful Chocolate, Delicious Dishes, Candy Collecting Game, Coin Flip, Jam Board, Many Left, Sridhar Likes Travelling
May Cook-Off 2014
Substrings and Repetitions, Book Game with Chef, Divide the Cake, Ups and Downs, Build the Tree
September Cook-Off 2014, ACM-ICPC Warm up
Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2, Updating Edges on Trees
March Challenge 2014
Sereja and Sorting 2, Team Split, Binary Tournament, Walk, Maximum number, GCD condition, The Street , Little Chef and Numbers, Mike and Stamps, A Story with Strings, Chef and Graph Queries
April Challenge 2014
Final Battle of Chef, Sereja and Permutation, Counting Matrices, Farmer Feb, Cards, bags and coins, Chef and Digits, Divide the Tangerine, Shortest Path in Binary Trees
May Challenge 2014
Little Elephant and Balloons, Sereja and Game, Compilers and Parsers, Dynamic Trees and Queries, Chef-jumping, Fun with AGp, Sereja and Subsegment Increasings, Chef and Strange Matrix, The Malaysian Flight Search, Stone
June Challenge 2014
Little Elephant and Blocks, Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, Chef and Subarray, Two Companies, Guessing Game, Forgot Password
July Challenge 2014
Little Elephant and Painting, Garden Game, Chef and Frogs, Sereja and Equality, Count Substrings, Reach The Point, Dish Owner, Lucky Game, Game of Numbers
August Challenge 2014
Mountain Holidays 2, Sereja and Shuffling, Little Elephant and T-Shirts, Chef and Reversing, Team Sigma and Fibonacci, The Leaking Robot, Earthquake, Cleaning Tables, Chef and Gift
September Challenge 2014
Factorisation, Sereja and Bubble Sort, Chef and Rainbow Array - 2, Chef and Swaps, Chef and Left-Right, Chef and sequence, Rectangle Query, Fun with Rotation, Flooring
October Challenge 2014
Remy paints the fence, Sereja and two strings, Chef and Ground, Chef and Painting, Chef and Square, Children Trips, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus
August Lunchtime 2014
Harrenhal, Wall, Dragonstone
September Lunchtime 2014
Chef and easy problem, Chef and easy problem 2, Chef and medium problem , Chef and medium problem 2
January Challenge 2015
Queries on the String, Sereja and Number Division 2, Chef and A Large Permutation, Sereja and LCM, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Xor Queries, Ranka, Gcd Queries
January Lunchtime 2015
Piece of cake, Candidate walk, Just multiply, Many bananas
February Cook-Off 2015
Zombinatorial, Parenthesis with Maximum Sum Subarray, Special Shortest Walk, Fit Squares in Triangle, Strategy for the World Cup
September Cook-Off 2021 Division 1
Chess Kings Chasing Game, Chef and Pairwise Distances, Permutation and GCD Set, Half Sequence, One Pile , Fake Swaps
SnackDown 2021 - Online Qualifiers
Prefix as a Substring 2, Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference
October Cook-Off 2021 Division 1
Can You Reach The End, Second Player, Find the Modulus, Chef Up, Permutation Sorting Game
October Lunchtime 2021 Division 1
Median Rearrangement, Tree Upshot, K-th Element on Grid
SnackDown 2021 - Online Round 1A
Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Lazy Machine, Min Max LCM
SnackDown 2021 - Online Pre-Elimination
Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers, Mega mu - 1, Mega mu - 2
SnackDown 2021 - Online Elimination Round (Rated for all)
One Change Subsequences, Random Convex Hull, Graduate Work Matters, Sorting Segments, Sorter Prodigy
SnackDown 2021 - Final Round
Ones Guessing, Equal Number of Prefix Maximums, Finally, Non Ad-Hoc Problem, AND of Maximums
December Cook-Off 2021 Division 1
Binary String Game, Destructive Nim, RGB Construction, Break the Balance
December Lunchtime 2021 Division 1
In-tree-active Node Coloring, Optimal Sorting, Counting manuls, Romantic Reversals, Sleep Technique , Point constraints
January Cook-Off 2022 Division 1
Unreasonable Updates, Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Beautiful Permutation, Erase All But One
February Cook-Off 2022 Division 1
Xor Becoming Uncanny, Perfect Permutation, PerMEXuation , Mango Market, Slingshot
February Lunchtime 2022 Division 1
Permutation Xor, Chef Cooks Permutation, Bracket Removal, Visit Them All, Magical Modulo, Magnet Sort
March Cook-Off 2022 Division 1
Secret Tree, Powers of 2, Dragonado And XOR, Flippable Points, Oh I Dont Care, Alternating Divisibility, Palindromes and Queries
March Lunchtime 2022 Division 1
Subsequence, Mathology, Sussy Rooks, Key-bored, Winter, Adjacency Love, Separate Them All
April Lunchtime 2022 Division 1(Rated)
Modular Circular Permutations, Do Not Touch the MEX!!!, Secret Machine Mania, Odd Split, AND Palindromes
May Cook-Off 2022 Division 1 (Rated)
Split Powers Of 2, Max Min Circle Difference, Different Subarrays Rearrange, Triple Inversions
May Lunchtime 2022 Division 1 (Rated)
Balanced 0-1 Tree, Equal After And, Rearrange Ranges, Smallest Element In Progression
July Cook-Off 2022 Division 1 (Rated)
Partition Queries, Segmentation Fault, Subsequence LCM
June Cook-Off 2022 Division 1 (Rated)
Permutation Segments, Throw and Take, Simple XOR, Prefix Suffix Distinct, Split AND Sum
June Lunchtime 2022 Division 1 (Rated)
The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum, Minimum Xor On Segment, XOR, The Detective, SPLIT With XOR Not X, Increase to Zero
August Lunchtime 2022 Division 1 (Rated)
Sort the Array, Tree Coloring, Maximal Prefix After Flip, Mex On Subtrees, MEX Permutation Difference
February Cook-Off 2023 Division 1 (Rated)
Take Not Less, Alice Potter and OWL, Alice Potter and Wingardium Leviosa, Crazy Row, Alice Potter And Dumbledore Army
Starters 83 Division 1 (Rated)
Mex Segments, Beauty Sum, The Faulty Tree, Construct String, Order by XOR, Saber Slays, Rotate to Minimum, Restoration
Starters 115 Division 1 (Rated)
Delete The Array, Subtraction Sequence I, Subtraction Sequence II, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero, Counting Is Fun
Starters 144 Division 1 (Rated)
Counting Is Fun, Find P, Minimise Inversions
Starters 200 (Rated for all)
Permutation Counting (Easy), Permutation Counting (Hard), Lexicographic Matching, Minimum Set, Evading Robot, Restrict Palindromes