| Contest | Problem |
|---|---|
| JUNE19 | SUMAGCD |
Roman Derkach
- roman_derkach
Ukraine- Other
- No Active Plan. View Details
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Practice Paths (1)
Contests (108)
September Cook-Off 2014, ACM-ICPC Warm up
Sherlock and the Grid, Subarray GCD
November Cook-Off 2014
Brackets
December Cook-Off 2014
Good Joke!
August Challenge 2014
Chef and Reversing, The Leaking Robot, Cleaning Tables, Chef and Gift
September Challenge 2014
Chef and Left-Right, Chef and sequence, Fun with Rotation
October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus
November Challenge 2014
Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome
December Challenge 2014
Chef and Bracket-Pairs, XOR with Subset, Chef and Apple Trees
September Lunchtime 2014
Chef and easy problem
October Lunchtime 2014
Tanu and Head-bob
January Challenge 2015
Sereja and Number Division 2, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
January Cook-Off 2015
Suraj goes shopping, Tojo hates probabilities
January Lunchtime 2015
Piece of cake
February Challenge 2015
Chef and Chain, Chef and Equality
March Challenge 2015
Chef and Notebooks
May Challenge 2015
Chef and Prime Divisors, Chef and new recipe
June Challenge 2015
Steady tables, Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia
September Challenge 2015
Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix, Lighthouses
October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Spheres, Rupsa and Equilateral Triangle
November Challenge 2015
Eugene and function, Chef and cakes
December Challenge 2015
Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters
February Cook-Off 2015
Fit Squares in Triangle
April Cook-Off 2015
Equality, Version Control System
June Cook-Off 2015
Strange operations
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
October Cook-Off 2015
Word Stem, Almost Sorted Permutation
December Cook-Off 2015
Chef and Subarrays
February Lunchtime 2015
Lucky Four
April Lunchtime 2015
Tickets
June Lunchtime 2015
Chef and Submatrix, Chef and Two Strings
July Lunchtime 2015
Greedy puppy, Puppy and game
August Lunchtime 2015
Minimum Maximum
September Lunchtime 2015
Sum of palindromic numbers
October Lunchtime 2015
emitL
November Lunchtime 2015
Query over Matrix, Black And White Cells
January Long Challenge 2016
Chef and Inflation, Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
February Challenge 2016
Chef-Detective
March Challenge 2016
Palindromic substrings
April Challenge 2016
Help Watson Escape, Chef and Ballons, Devu and good strings, Chef And Magical Path, Chef And Coloring
June Challenge 2016
Chef And The Hiring Event, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
July Challenge 2016
Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chefland and Electricity
August Challenge 2016
Chef and His Garden, Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
November Challenge 2016
Count Permutations, Friends Meeting, Gift and Chef, Chef and squares, Task for Alexey
December Challenge 2016
Train Partner, Kirito in labyrinth
January Cook-Off 2016
Chef and Destruction, Chef and Fruits
March Cook-Off 2016
Digital clock, Alternating subarray prefix
April Cook-Off 2016
Movie Weekend, Odd Divisors
June Cook-Off 2016
Sticks, Right Triangle
July Cook-Off 2016
Chef and Proportion, Chef and Numbers, Chef and Land
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences, Counting Strings
December Cook-Off 2016
Chef and Subset, Chef and Subarrays
January Lunchtime 2016
Triangle Classification
February Lunchtime 2016
Chef and Socks, Chef and Tic-Tac-Toe
April Lunchtime 2016
Coins And Triangle
May Lunchtime 2016
Akhil And Colored Balls, Akhil And Random String
June Lunchtime 2016
Collisions, One more weird game, Square in numbers
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
August Lunchtime 2016
Studying Alphabet, Lock-Free Stack
September Lunchtime 2016
Chef and Inequality
October Lunchtime 2016
FastFood Combos, The Largest Bouquet
November Lunchtime 2016
Chef and his Students, Chef and Square Set
January Challenge 2017
Cats and Dogs
February Challenge 2017
Chef and His Apartment Dues, Most Frequent Element
February Cook-Off 2017
Download file, Chairs
April Challenge 2017
Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
May Challenge 2017
Chef and Sub Array , Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator , IPC Trainers
August Long Challenge 2017
Chef and Rainbow Array, Chef And Fibonacci Array, Chef and Mover, Palindromic Game, Greedy Candidates
March Cook-Off 2017
Safe Robot
June Cook-Off 2017
Ada and crayons, SnackUp
IOPC 2017 (Rated)
The Birthday Tears, Max Out, Christmas Time
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
February Lunchtime 2018
Game with numbers, Jumping in the hills
March Challenge 2018 DIV 1
Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas
July Cook-Off 2018 Division 2
Encoding Message, OR Matrix, Chef and GCD Game
April Lunchtime 2018 Division 1
Two vs Ten, The hardest gcd problem, Triple-tree decomposition
April Challenge 2018 Division 1
Count Good Prefixes
May Challenge 2018 Division 1
Fake Binary Search, Dibs on Fibs
July Challenge 2018 Division 2
Magic Set
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
Code Melange (Rated)
XD Subsequences, The Deadly Sin, Candy Love
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Subtree Removal, Fencing
May Cook-Off 2019 Division 1
Misha and Nice Sets
August Challenge 2019 Division 1
Guddu and his Mother, Encoding, Dilemma, Chef and Gordon Ramsay, Football, Distribute Apples, Zombie and the Caves
October Challenge 2019 Division 1
Chef and Maximum Star Value, Operations on a Matrix
November Challenge 2019 Division 1
Physical Exercise, Hard Sequence, Weapon Value
Code Melange (Rated for all)
Greg and Grid, A Small Array, Go Round, Longest Xommon Subsequence, Subset Numbering, Max power
February Challenge 2020 Division 2
School of Geometry, Hard Cash
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Leaked Answers (Challenge)
March Cook-Off 2020 Division 2
Mysterious Sequence, Find Your Gift, Box of Chocolates, Maximize Letter Beauty
February Lunchtime 2020 Division 2
At the Gates, Not All Flavours
July Lunchtime 2021 Division 2
Beautiful Pairs
September Challenge 2021 Division 2 (Unrated)
XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass
CodeChef Starters 11 Division 2 (Rated)
The Grid Fill Problem, Obtain the Sum
October Challenge 2021 Division 2 (Unrated)
Three Boxes, Which Mixture
July Long Two 2022 Division 2 (Unrated)
Maximize Difference, Concat Sort, Chef in his Office, To Divide or Not To Divide, Sum of Product 1, Insurance, Hungry Chef
Starters 51 Division 2 (Rated)
Adjacent Xors, Split N, Different Medians
August Long 2022 Division 2 (Unrated)
Sale Season, Hello Equation, Maximum Submissions, Make A and B equal
Starters 122 Division 2 (Rated)
Arya In Grid, Transformation Cost, Man of the Match
Starters 128 Division 2 (Rated)
Binary Substring, MEXimize the Array, Disjoint Non-Decreasing Array
Starters 138 Division 2 (Rated)
Prefix Suffix Inequality, Long Drive, Distinct Substring