xyr2005
- 7★xyr2005
- China
- Student
- Hangzhou No.2 High School, Zhejiang
- No Active Plan. View Details
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(2021-04-12 15:00:00)Ratings System Update
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Ratings System Update
(2021-04-12 15:00:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0):
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Practice Paths (0):
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Contests (5):
October Challenge 2020 Division 2:
Positive AND, Random Knapsack, Rooted Minimum Spanning Tree, Replace for X, D-Dimensional MST, Compress all Subsegments, Adding Squares, Village Road Network, Covid Run, Chef and Easy Queries, Inversions
November Challenge 2020 Division 2:
Ada and Dishes, Iron, Magnet and Wall, Unusual Queries, Scalar Product Tree, Red-Black Boolean Expression, Selecting Edges, Magical Candy Store, Restore Sequence, Chef and the Combination Lock
January Challenge 2021 Division 2:
Guess the Tiling, And-Or Game, Sequence Creation, Fair Elections, Watching CPL, Stack-Queue Sort (Challenge), Expected Number of SCCs, Chef and Ants, Curious Matrix, Cool Subsets, Blackjack
February Challenge 2021 Division 1:
Dream and the Multiverse, Cell Shell, Bash Matrix, XOR Sums, Multiple Games, Prime Game, Another Tree with Number Theory, Team Name
April Challenge 2021 Division 1:
Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, String Power, Chef and Dice, Boolean Game
Practice Problems (41):
Practice:
Billboards, Families of Chefland, GCD Subsequences, Beauty of Pairs, Random Number Generator, CCDSAP Exam, Cool Subsets, Expected Spanning Trees, Chef, Chefina and Restoration, Chefina and Swaps, Rooted Minimum Spanning Tree, Linear Combination, Permutations, Blackjack, Greedy Students, Binary Game, Weird full graph, Clamp Paths on Tree, Mega mu - 1, Mega mu - 2, Guess the row, One Change Subsequences, Random Convex Hull, Prefix Suffix LIS Constructing, Sorter Prodigy, Counting manuls, Unreasonable Updates, Yet Another XOR Task, Divisible Distances, Mex Pairs, Tangling Tree , Bracket Removal, Chef and Mala, Powers of 2, Plus Xor Increase, Make Grid Comparable, Max Min Circle Difference, Permutation Segments, Max Minus Min, SPLIT With XOR Not X, Increase to Zero