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Rubikun
- 7★rubikun
Japan
- Student
- University of Tokyo
- No Active Plan. View Details
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Ratings System Update
(2024-07-24 22:00:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Contests (40)
May Lunchtime 2021 Division 3
Birthday Gifts, Charges, Hoop Jump, Tom And Jerry 1, Interactive MST, Total Components, K-Subarrays
June Cook-Off 2021 Division 2
Too Much Xor, Binary String on Steroids, Battle Royale, Polynomial Root, The Wave
June Lunchtime 2021 Division 2
From Rational to Binary, False Number, Hidden Cell, Node Marking, Unpleasant Ones, Tic Tac Toe
July Cook-Off 2021 Division 1
Beautiful Subsequence, Mod Equality, Hidden Colored Graph, Make the Matrix Beautiful
July Lunchtime 2021 Division 1
Xor Separation, Longest Good Segment
August Cook-Off 2021 Division 1
Odd Array, Different String, Chef 2 Chef, Interactive Equivalency, Clear the Array
August Lunchtime 2021 Division 1
Bunny Hops, Min-Max Path, Just a Graph, Longest Spanning Substrings, Chef and Deque
September Cook-Off 2021 Division 1
Chess Kings Chasing Game, Chef and Pairwise Distances, Permutation and GCD Set, Half Sequence, Fake Swaps
SnackDown 2021 - Online Qualifiers
Lucky Number
September Lunchtime 2021 Division 1
Range Array, Interesting Representation, Subsequence LCS, Alice vs Bob Faceoff
October Cook-Off 2021 Division 1
Can You Reach The End, Find the Modulus, Chef Up, Permutation Sorting Game
October Lunchtime 2021 Division 1
Median Rearrangement, Tree Upshot
SnackDown 2021 - Online Round 1A
Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
SnackDown 2021 - Online Pre-Elimination
Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers
SnackDown 2021 - Online Elimination Round (Rated for all)
Graduate Work Matters, Sorting Segments
November Lunchtime 2021 Division 1
Min-Max Rotations, Permutation Pairs, Subarray Jumps
December Cook-Off 2021 Division 1
Binary String Game, Destructive Nim, RGB Construction, Break the Balance
December Lunchtime 2021 Division 1
Optimal Sorting, Romantic Reversals, Sleep Technique , Point constraints
January Cook-Off 2022 Division 1
Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Beautiful Permutation, Erase All But One
January Lunchtime 2022 Division 1
Circular Permutation Recovery, Permutation XOR Sum
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, Visit Them All, Magical Modulo, Magnet Sort
March Cook-Off 2022 Division 1
Secret Tree, Dragonado And XOR, Flippable Points, Oh I Dont Care, Alternating Divisibility
March Lunchtime 2022 Division 1
Mathology, Sussy Rooks, Winter, Adjacency Love, Separate Them All
April Cook-Off 2022 Division 1
Chef Goes Shopping, Sorted Distances
April Lunchtime 2022 Division 1(Rated)
Modular Circular Permutations, Do Not Touch the MEX!!!, Secret Machine Mania, AND Palindromes
May Cook-Off 2022 Division 1 (Rated)
Split Powers Of 2, Different Subarrays Rearrange, Triple Inversions
May Lunchtime 2022 Division 1 (Rated)
Balanced 0-1 Tree, Equal After And, Rearrange Ranges
July Cook-Off 2022 Division 1 (Rated)
Median Pairs, String Break, Partition Queries, Segmentation Fault, Subsequence LCM
June Cook-Off 2022 Division 1 (Rated)
Throw and Take, Simple XOR, Prefix Suffix Distinct, Split AND Sum
June Lunchtime 2022 Division 1 (Rated)
Chef And Lost Array, 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
July Lunchtime 2022 Division 1 (Rated)
Tree Interval Queries, Inversions Retrieval, Tree Retrieval, Binary String Happiness, Consecutive XOR, Largest Family
August Lunchtime 2022 Division 1 (Rated)
Sort the Array, Tree Coloring, Subtract 12 Operation, Maximal Prefix After Flip, MEX Permutation Difference
September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)
Increasing Addition, Remove Numbers, Longest Unfriendly Subsequence
February Cook-Off 2023 Division 1 (Rated)
Take Not Less, Alice Potter and OWL, Alice Potter And Dumbledore Army
Starters 86 Division 1 (Rated for All)
Least Size, Minimum Operation, Sum Over All Arrays, String Game , Prefix Max, Largest Y
Starters 83 Division 1 (Rated)
Mex Segments, Construct String, Order by XOR, Saber Slays, Rotate to Minimum, Restoration
Starters 93 Division 1 (Rated for All)
Thank U, Next, Why Try, Positions, NASA, Greedy, Bloodline, Motive
Starters 100 Division 1 (Rated)
Prime Permutation, Stamps 100, Concussive Sequence, Ant
Starters 113 Division 1 (Rated)
Count Distinct Arrays, Counting Is Fun, Maximise The Minimum, Minimise Maximum Subarray Sum, Make All Equal, Score Sum, Maximum Score , Trees Are Fun
Starters 115 Division 1 (Rated)
Delete The Array, Subtraction Sequence I, Subtraction Sequence II, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero
Starters 144 Division 1 (Rated)
Counting Is Fun, Sort Lexicographically , Find P, Minimise Inversions, Largest K