Learning Paths (0)
None
Practice Paths (0)
None
Contests (59)
June Cook-off
Correctness of Knight Move, Super-plane
August Cook-off 2011
Open the Dragon Scroll, Rotate the String
November Cook-Off
Moving Coins, Subanagrams
December 2011 Long Contest
Robot Movings
December Cook-Off
Ciel and New Menu, Ciel and A-B Problem
January 2012 Challenge
Houses and Restaurants, Lucky Sum, Card Shuffle
February 2012 Challenge
Lucky Count, Lucky Long, Word Couting, Count of Maximum
February 2012 Cook-off
Daily Train, Equation Solver
March 2012 Challenge
Longest Weird Subsequence, Free Shuttle Service, Home Delivery, Spoon in Matrix
July Challenge 2012
Chef's Dream, My Fair Coins, Gift Rift, Restaurant Rating
September Challenge 2012
Lights, Racing Horses, Queries About Numbers, ChefTown Parade
February 2013 Challenge
Buy1-Get1, Vacation, Observing the Tree, Word Play
March Challenge 2013
Random decreasing function, Tourist Translations, Approximately, Fire Escape Routes
December Challenge 2013
Lucy and the Flowers, Cube Cakes, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries
January Challenge 2014
Magic Trick, Chef and Feedback
July Cook-Off 2014
Copy-Paste, Sum Queries, Friends
February Challenge 2014
Little Elephant and Movies
March Challenge 2014
Sereja and Sorting 2, Team Split, Binary Tournament, Walk, Maximum number, GCD condition, Little Chef and Numbers, Mike and Stamps, A Story with Strings, Chef and Graph Queries
April Challenge 2014
Counting Matrices, Cards, bags and coins
July Challenge 2014
Little Elephant and Painting, Garden Game, Chef and Frogs, Sereja and Equality, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner, Lucky Game, Game of Numbers
August Challenge 2014
Mountain Holidays 2, Little Elephant and T-Shirts, Chef and Reversing, The Leaking Robot, Push the Flow!, Earthquake, Cleaning Tables, Chef and Gift
December Challenge 2014
Chef Under Pressure, Chef and Bracket-Pairs, XOR with Subset, Sereja and GCD
June Lunchtime 2014
Substring Query, Coprime Triples, The Smallest Pair, Dynamic Inversion
January Challenge 2015
Queries on the String, Sereja and Number Division 2, Sereja and LCM, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Xor Queries, Gcd Queries
February Challenge 2015
Chef and Strange Formula, Devu and Locks
March Challenge 2015
Count Substrings, Chef and Notebooks, Chef and Problems, Sereja and Random Array, Devu and his Class, Sign Wave, Matrix, Counting on a Tree
April Challenge 2015
Chef and Array, Inversion sorting
June Challenge 2015
Steady tables, Another Fibonacci, Chef and String
October Challenge 2015
Count Subarrays
November Challenge 2015
Simple Sum
April Challenge 2016
Help Watson Escape, Fibonacci Queries, Chef And Coloring
May Challenge 2016
Sereja and GCD 2, Easy Queries, Chef and math, Chef and Amazingness of Numbers
June Challenge 2016
Chef and Rectangle Array
July Challenge 2016
Chef and Segments
September Challenge 2016
Dividing Machine
November Challenge 2017
Chef and Subarray Queries
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle
May Challenge 2020 Division 2
Buying a New String, Triple Sort, Sorting Vases, Coronavirus Spread, Chef and Bitwise Product, Isolation Centers
June Challenge 2020 Division 2
Chef and String
August Challenge 2020 Division 2
Insanely Hard School Exams, Subsequence Frequency Counting, Chefina and Strange Tree, Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements
September Challenge 2020 Division 2
Chefina and Swap, Move the Coins 2, A Problem on Sticks, Chef and Trump Cards, Find XOR, Rotate the Polyline, Divide Candies, Vibrating Paths (Challenge), Ada Matrix, Coronavirus Spread 2
October Challenge 2020 Division 1
Positive AND, Random Knapsack, Rooted Minimum Spanning Tree, Replace for X, D-Dimensional MST, Compress all Subsegments, Adding Squares
November Challenge 2020 Division 1
Panic! at the Disco, Chef and the Combination Lock, Connect on a Grid (Challenge), Restore Sequence, Magical Candy Store, Scalar Product Tree, Unusual Queries
January Challenge 2021 Division 1
Chef and Ants, Guess the Tiling, Expected Number of SCCs, Blackjack, Stack-Queue Sort (Challenge), Sequence Creation, And-Or Game
December Challenge 2020 Division 1
Hail XOR, Square Root of LCA Convolution, Calculus, Permutations, String Operations, Positive Prefixes, Even Pair Sum
February Challenge 2021 Division 1
Another Tree with Number Theory, XOR Sums
April Lunchtime 2021 Division 1
A Special Tree
May Lunchtime 2021 Division 1
Tokens On A Tree, Total Components, K-Subarrays
May Challenge 2021 Division 1 (Unrated)
Valid Paths, An Interesting Sequence
June Challenge 2021 Division 1 (Unrated)
Minimum Dual Area, Bitwise Tuples, Bella ciao, Dual Distance, Maximum Frequent Subarray Sum, Summer Heat, Optimal Xor Set, Minimum Subtree Cover
June Lunchtime 2021 Division 1
From Rational to Binary, False Number, Node Marking, Tic Tac Toe
July Challenge 2021 Division 1 (Unrated)
XxOoRr, Chef vs Bharat, Chef and Pairs, K Path Query
August Challenge 2021 Division 1 (Unrated)
Special Triplets, Problem Difficulties, Olympics Ranking
December Lunchtime 2021 Division 1
In-tree-active Node Coloring, Optimal Sorting, Romantic Reversals, Sleep Technique , Point constraints
January Long 2022 - I, Division 1 (Unrated)
Sequence Master, Retrieve back the Array
January Lunchtime 2022 Division 1
Permutation XOR Sum, Divisible Distances
February Lunchtime 2022 Division 1
Chef Cooks Permutation, Visit Them All, Magnet Sort
March Cook-Off 2022 Division 1
Secret Tree, Dragonado And XOR, Alternating Divisibility
March Lunchtime 2022 Division 1
Mathology, Winter, Adjacency Love, Separate Them All
May Lunchtime 2022 Division 1 (Rated)
Equal After And
June Lunchtime 2022 Division 1 (Rated)
The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum
February Cook-Off 2023 Division 1 (Rated)
Take Not Less, Alice Potter and OWL, Alice Potter And Dumbledore Army
Total Problems Solved: 251
