Koichi Namekata
- 7★kmcode
Japan- Student
- Junior & Senior High School At Komaba, University of Tsukuba, Setagaya, Japan
- No Active Plan. View Details
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Ratings System Update
(2020-05-30 22:30:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Practice Paths (0)
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Contests (80)
November Cook-Off 2014
Brackets, Petersen Graph
September Challenge 2014
Factorisation, Chef and Rainbow Array - 2, Chef and Left-Right, Chef and sequence, Fun with Rotation
October Challenge 2014
Remy paints the fence, Chef and Ground, Chef and Painting, Chef and Square, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus
November Challenge 2014
Chef and Segment Game, Chef and Words, Fombinatorial, Sereja and Permutations, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome, The Spelling Problem
December Challenge 2014
Chef Under Pressure, Alok-nath and His Sanskars, Chef and Bracket-Pairs, Kali and Devtas, XOR with Subset, Chef and Apple Trees, Sereja and GCD
September Lunchtime 2014
Chef and easy problem
October Lunchtime 2014
Tanu and Head-bob, Physics Class, Cascading Style Sheets
November Lunchtime 2014
A wolf, a sheep and cabbage
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 Lunchtime 2015
Piece of cake
February Challenge 2015
Chef and Chain, Time to Study Graphs with Chef, Chef and Strange Formula, Chef and Complex String Coverage, Chef and Strings, Let us play with rank list, Jigsaw Puzzle Solving, Chef and Equality
March Challenge 2015
Count Substrings, Chef and Notebooks, Chef and Problems, Sereja and Random Array, Devu and his Class, Sign Wave, Matrix
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Inversion sorting, Division of Lands, Chef and Piano Scales
May Challenge 2015
Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Sereja and Matrix Division, Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Anticommutative implication, Chef and String
July Challenge 2015
Addition and Multiplication, Maximum Difference Walk, Bread, MasterChef, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Way Out, Social Cluster, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia, Chef and Path
September Challenge 2015
Filling the maze, Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix, Terrible vectors, Bank robbery, Lighthouses, Cracking the Code, Chef and Chetris
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Cyclic shifts in permutation, Rupsa and Equilateral Triangle, LCM equation, Jump mission, Efficient Delivery
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum, Adding Special Sum
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
September Mega Cook-Off 2015
Forgotten Language, Super Numbers, Stacks
November Cook-Off 2015
Sereja and Line, Sereja and Array and Subtracting, Sereja and Pairs, Sereja and Tree 2
February Lunchtime 2015
Lucky Four
March Lunchtime 2015
Saving a gift of love, Painting the Boxes, Chef Anup
April Lunchtime 2015
Tickets
May Lunchtime 2015
Devu and Grapes, Devu and Manhattan Distance
June Lunchtime 2015
Chef and Submatrix, Chef and Two Strings, Chef and Sets
August Lunchtime 2015
Churu and lost string, Make Palindrome, Minimum Maximum
September Lunchtime 2015
Coffee Breaks, Sum of palindromic numbers
October Lunchtime 2015
emitL, Save the nature, Fast squarer, Estimating progress
November Lunchtime 2015
Query over Matrix, Black And White Cells, Product on Tree
December Lunchtime 2015
Computer Network, Ancient Berland Roads, Distinct Codes
January Long Challenge 2016
Sereja and Salesman, Chef and Inflation, Rupsa and the Game, Churu and Balls, Chef and Making Triples, Cyclist Race, Chef and Time Machine, Devu and Perfume
July Cook-Off 2016
Chef and Proportion, Chef and Numbers, Chef and Land, Chef and Array
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences, Counting Strings, Shortest path queries
March Lunchtime 2016
Two Closest, Arrays Sum, Simple Statistics
April Lunchtime 2016
Maximum K Sums, Coins And Triangle
June Lunchtime 2016
Collisions, One more weird game, Square in numbers, Travelling in a tree
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
August Lunchtime 2016
Studying Alphabet, Lock-Free Stack
September Lunchtime 2016
Chef and Inequality, Chef and Tree
October Lunchtime 2016
FastFood Combos, The Largest Bouquet
November Lunchtime 2016
Chef and his Students, Chef and Square Set, Tom & Jerry
December Lunchtime 2016
Superheroes and villains, Fly height mode
February Lunchtime 2017
Bear and House Queries, Bear and Milky Cookies, Bear and Bribing Tree, Bear and Oveflow Points
September Cook-Off 2017
Infinite OR Game, Statistics Construction, Subsequence Equality
December Cook-Off 2017
Minimum SubArray, Beautiful Array, Football Match
March Lunchtime 2017
Bear and Haircut, Bear and Ladder, Bear and Species
April Lunchtime 2017
Bear and Digit Virus, Bear and Segments, Closest points queries, Bear and Segment 01
May Lunchtime 2017
Prefix Inversions, Post Tree, SubInversing
June Lunchtime 2017
Maximum Unique Segment, Two Numbers, Company and Club Hierarchies
July Lunchtime 2017
Find the Maximum Value, Good Pairs, Travel to all Points, Divide the Set
August Lunchtime 2017
Mathison and the Dynamo shuffle, Mathison and pangrams
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests, Chef and Programming Contest by His Friend
October Lunchtime 2017
Buggy Calculator, Maximum Number
November Lunchtime 2017
Smart Strategy, Shuffling, L-R queries, Strange Queries
December Lunchtime 2017
Days in Month, Strange Function, Too Much Sweetness, Four Friends
January Challenge 2018
(Challenge) Chef and Palindromes, Killing Monsters, A humongous Query, Simplify the Square Root, Killjee and k-th letter , K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
January Lunchtime 2018
Chef and Game with Sequence, Chef and Average on a Tree, Chef and Function, Chef and Escaping from the Labyrinth
February Challenge 2018
Broken Clock, Chef And Land Labeling, Chef And His Characters, Chef And The Patents, Chef and odd queries, Points Inside A Polygon, Car-pal Tunnel, Permutation and Palindrome
February Lunchtime 2018
Prefix borders, Game with numbers, Jumping in the hills
December Cook-Off 2018 Division 1
Count Subsequences, Swag Subsets, Yalalovichik Numbers, Yalalovichik Strings
March Lunchtime 2018 Division 1 (Unrated)
Partitions, Three Integers, Magic Elements
April Lunchtime 2018 Division 1
The hardest gcd problem, Triple-tree decomposition, Solve what you want, Fast forward travelling, Darts
May Lunchtime 2018 Division 1
Count Substrings, Shifted Palindrome, Weak in the Middle, Maximum Plus
April Challenge 2018 Division 1
Cutting Plants, Highway Crossing, Count Good Prefixes
May Challenge 2018 Division 1
S-T Mincut, Change the Signs, Edges in Spanning Trees, Fake Binary Search, Dibs on Fibs
July Lunchtime 2018 Division 1
Forced Particles, GCD Sum, Prime divisors
August Lunchtime 2018 Division 1
Chef and Eid, Mix Mix Game, X and Two Groups, GukiZ Has More Candies
September Lunchtime 2018 Division 1
Biased Judgement, Opposite Cites, Chef Restaurant , Match the Streams, Coin Partition
October Lunchtime 2018 Division 1
Coloring the Grid, Weird Question
December Lunchtime 2018 Division 1
Choosing from Buckets, Drawing Lines, Maximize the NOSS, Find Best Path, Age Calculator
January Challenge 2019 Division 1
Yet Another Problem About Sequences, Different Neighbours, Distinct Pairs, Party
April Challenge 2020 Division 1
Factor Tree
May Cook-Off 2020 Division 1
Chef, Chefina and Their Friendship, Chefland Squads and the Army Chief, Chefina on a Trip, Roads in Chefland
February Lunchtime 2020 Division 1
Coronavirus, Swapping to Palindrome, Monsters Battle, Secret Mission
March Lunchtime 2020 Division 1 (Unrated)
Maximize LCM, Strip in a Tree!, Nested Rotation
April Lunchtime 2020 Division 1
Dot Time, Xor Jar Muluk Tar, Another Birthday Present!, Positive Mex
May Lunchtime 2020 Division 1
Absolute Min Max, Escape One, Convert the String, Tree difference