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Ryotaro Sato
- 7★hitonanode
Japan
- Professional
- No Active Plan. View Details
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Ratings System Update
(2024-01-03 22:30:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
None
Practice Paths (0)
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Contests (31)
February Lunchtime 2020 Division 2
Painter Problem, At the Gates, Swapping to Palindrome, Not All Flavours, Monsters Battle, Secret Mission
March Lunchtime 2020 Division 2 (Unrated)
Maximize LCM, Strip in a Tree!, Nested Rotation, Chef Swaps Digits, Good Prefix
April Lunchtime 2020 Division 2
Dot Time, Xor Jar Muluk Tar, Triangle Query, Another Birthday Present!, Positive Mex, Chef in Fantasy League
May Lunchtime 2020 Division 1
Escape One, Convert the String, Tree difference
July Cook-Off 2020 Division 1
What Is This, a Crossover Episode, MEX-ception, The In-XOR-able Task, Even-tual Reduction, OR-thodox Distinction, Path-etic Products
July Lunchtime 2020 Division 1
Profitable Paths 2, Golomb Sequence, Binary Concatenation , Pairs of Pairs
June Lunchtime 2020 Division 1
Maximum AND, Kuroni and the Cowsheds, Gold Mining, Square Submatrices
January Lunchtime 2021 Division 1 (Unrated)
Good Grid, Shifting Spoons, Dreams of Divisibility, Even Sum
November Cook-Off 2020 Division 1
Flip the String, Chef and IPC Certificates, Graph Construction, Set Queries, Communication Channel, Hiring Workers
September Lunchtime 2020 Division 1
Root the Tree, Robot Detector, Few Different Elements
April Lunchtime 2021 Division 1
A Special Tree, Hackerman, Intersection Matrix
May Lunchtime 2021 Division 1
Tokens On A Tree, Total Components, K-Subarrays
June Challenge 2021 Division 1 (Unrated)
Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Dual Distance, Maximum Frequent Subarray Sum, Summer Heat, MathBuzz, Optimal Xor Set, Minimum Subtree Cover
June Lunchtime 2021 Division 1
From Rational to Binary, HTML Tags, Hidden Cell, Node Marking, Tic Tac Toe
July Cook-Off 2021 Division 1
Beautiful Subsequence, Mod Equality, Hidden Colored Graph, Make the Matrix Beautiful
August Lunchtime 2021 Division 1
Bunny Hops, 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, Maximum Number Of Distinct Elements, Minimise Difference
SnackDown 2021 - Online Round 1A
Yet Another Flipping Problem, 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, Mega mu - 1, Mega mu - 2
SnackDown 2021 - Online Elimination Round (Rated for all)
Random Convex Hull, Graduate Work Matters, Sorting Segments
December Cook-Off 2021 Division 1
Binary String Game, Destructive Nim, Tree and Brilliant Array, RGB Construction, Break the Balance
December Lunchtime 2021 Division 1
In-tree-active Node Coloring, Optimal Sorting, Romantic Reversals, Sleep Technique , Point constraints
January Cook-Off 2022 Division 1
Unreasonable Updates, Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility , Mask Policy, Merged LIS, Hungry Ashish, Boring Trip, Prime Graph, Beautiful Permutation, Erase All But One
January Lunchtime 2022 Division 1
Circular Permutation Recovery, Permutation XOR Sum, Permutation Deletion
April Cook-Off 2022 Division 1
Chef Goes Shopping, Sorted Distances, Sequence Cost
April Lunchtime 2022 Division 1(Rated)
Modular Circular Permutations, Do Not Touch the MEX!!!, Secret Machine Mania, AND Palindromes
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)
Permutation Segments, Throw and Take, Simple XOR, Prefix Suffix Distinct, Split AND Sum, Max Minus Min
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, Adjacent Pairs, Where Is the Root, Longest Unfriendly Subsequence
February Cook-Off 2023 Division 1 (Rated)
Take Not Less, Alice Potter and OWL, Alice Potter and Wingardium Leviosa, Alice Potter And Dumbledore Army
Starters 93 Division 1 (Rated for All)
Thank U, Next, Why Try, Positions, NASA, Greedy, Bloodline, Motive
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 , Sum Neq , Trees Are Fun, Make N Zero, Thala For A Reason
Starters 114 Division 1 (Rated till 6 Stars)
Game on Array, Make Same, Chef and Tag, Rock-Paper-Scissors, Lexicographic Rook on a Graph, Divisor Sum, Painting Walls, Christmas Candy, Christmas Greetings
Starters 115 Division 1 (Rated)
Delete The Array, Subtraction Sequence I, Subtraction Sequence II, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero
Starters 142 Division 1 (Rated till 5-Stars)
Sum of Xors, Pairs Sum with Length x, Ratist Behaviour, The Cards Machine, Chef loves Pizza Chef loves halfs, Writing Speed, Penalty Shoot-out, Array Removal, Number Hunt