Alexander
- 7★html_sanek
Russia- Student
- Moscow Institute of Physics and Technology
- No Active Plan. View Details
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(2022-09-23 23:30:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Practice Paths (0)
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Contests (78)
August Challenge 2012
Little Elephant and Bombs
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, Chef and Bracket-Pairs, XOR with Subset, Chef and Apple Trees, Sereja and GCD
January Challenge 2015
Chef and Stones, Sereja and Votes, Gcd Queries
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality
March Challenge 2015
Chef and Notebooks
May Challenge 2015
Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe, Chef and Cake
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Cyclic shifts in permutation, Rupsa and Equilateral Triangle
November Challenge 2015
Ingredients, Chef and collection of stamps, Eugene and function, Simple Sum, 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
Zombinatorial, Parenthesis with Maximum Sum Subarray, Fit Squares in Triangle, Strategy for the World Cup
January Long Challenge 2016
Sereja and Salesman, Rupsa and the Game, Churu and Balls, Chef and Time Machine
February Challenge 2016
Sereja and Two Lines, Rectangles of Love, Chef-Detective
April Challenge 2016
Help Watson Escape, Fibonacci Queries, Chef and Ballons, Chef And Magical Path, Chef And Coloring
May Challenge 2016
Chef and Balls, Chef and Big Soccer, Laddu
June Challenge 2016
Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
July Challenge 2016
Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity
August Challenge 2016
Chef and Circle Run, Chef and Chocolate, Chef and Round Run
October Challenge 2016
Chef and Keyboard, Big Queries, Fenwick Iterations, Chef and Three Dogs, Chef and Two String
December Challenge 2016
Kth Max Subarray, Kirito in labyrinth, Our Base is Under Attack
January Challenge 2017
Fantastic Four
September Challenge 2017
Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Weasel does Xor on Tree, Fill The Matrix, Little Chef and Sums
October Challenge 2017
Chef and Magic Arrays, Chef and a great voluntary Program, Chef and Cycled Cycles, Shooting on the array, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
November Challenge 2017
Chef and Intersection Line, Chef Hates Palindromes, Chef and Subarray Queries, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
November Cook-Off 2017
Hasan and boring classes, Skiing, Online Chess, Random Pair
January Challenge 2018
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 Escaping from the Labyrinth
February Challenge 2018
Broken Clock, Lucas Theorem, Chef And Land Labeling, Chef And His Characters, Chef And The Patents, Chef and odd queries, Points Inside A Polygon, Car-pal Tunnel, (Challenge) Biased Committee, Permutation and Palindrome
February Cook-Off 2018
Chef and Cook-Off, Chef and Tuples, Chef and Chefness, Chef and Line
February Lunchtime 2018
Prefix borders, Game with numbers, Jumping in the hills
May Cook-off 2018 Division 1
Difficult Choice, Delivery Problems, Best Cake Ever, Searching for the Recipe
September Mega Cook-Off 2018 Division 1
OneTwo, Make a Permutation
October Mega Cook-Off 2018 Division 1
Binary Nim 2, Power Tree, Pumping Water
May Challenge 2018 Division 1
S-T Mincut, Series Sum, Change the Signs, Fake Binary Search, Dibs on Fibs
June Challenge 2018 Division 1
Two Flowers, Vision, Ways to Work, Expected Buildings
July Challenge 2018 Division 1
Reach Equilibrium, Gears
August Challenge 2018 Division 1
Modular GCD, Interactive Matrix, Lonely Cycles
September Challenge 2018 Division 1
AND Square Subsegments, Selinas the Chefs Falling on the Tree, Sasha and Photos, Chef and Condition Zero (Challenge), Table Game, Bad Shuffle
December Challenge 2018 Division 1
Max and Electrical Panel, Directing Edges, Edge Addition, Chef and Interactive XOR
October Challenge 2018 Division 1
Walk on Tree, Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard, Distinct Rows in Submatrices
October Lunchtime 2018 Division 1
Three Friends, Robots Again, Coloring the Grid, Weird Question, Tree Walk, Niceness of the Arrays
January Challenge 2019 Division 1
Yet Another Problem About Sequences, Different Neighbours, Partition the Graph, Distinct Pairs, (Challenge) Chef and Matching Game, A Pizza Slice
February Challenge 2019 Division 1
Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Xor Decomposition, Appy and Contest, Yet Another Tree Problem, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance, Maximize the Tax
March Challenge 2019 Division 1
Cheating on Queue, Treasure Hunt, Yet Again a Subarray Problem, Matchable Permutations
March Cook-Off 2019 Division 1
XOR N-bonacci Sequence, Points and Convex Hulls, Markers and Caps, The Frictionless Bisected 2-Dimensional World, Music Shopping
April Challenge 2019 Division 1
Kira Loves Palindromes, Playing with Numbers, Subtree Removal
April Lunchtime 2019 Division 1
Dream Problem, Firdavs and Planet F, Minimum Sum, Chef Rami and Inventions
May Challenge 2019 Division 1
Ada Rooks 2, Trees and Degrees, Where to Build the Roads, Sonya and Gifts, Ada Pawns
May Cook-Off 2019 Division 1
Misha and Nice Sets, Bitsetbaba and Power Grid, Expected Xor, Searching for a Biclique
June Challenge 2019 Division 1
Lent Money, Count Arrays, Chef and Ingredients, Chef and His Dish, Intersecting Paths, Sum and GCD, Forgotten Tree 9, (Challenge) SnackDown 99
June Cook-Off 2019 Division 1
Zawad and Index Sum, Nice Subsets, The Secret Recipe, Ants and Anteaters, Drink Slush
July Cook-Off 2019 Division 1
Birthday Gift Again, War in Treeland Again, Magical Menu, Expected Product
August Challenge 2019 Division 1
Guddu and his Mother, Encoding, Dilemma, Maximize an Expression, Chef and Gordon Ramsay
September Challenge 2019 Division 1
Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Chef Designed a Network
October Challenge 2019 Division 1
Queries on Matrix, Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Array Modification, (Challenge) Maximizing LIS, Faulty System
December Challenge 2019 Division 1
Chefina and Ranges, Binary XOR, Scoring Pairs, Sticky Notes, Test Generation, Addition
March Challenge 2020 Division 1
Lasers Everywhere, Inverse of a Function, Lasers Everywhere Alternative
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty, Random Chocolates, Escape the Tree
April Cook-Off 2020 Division 1
Tower Counting, Simple Operations, Inversions in Permutations
April Lunchtime 2020 Division 1
Dot Time, Xor Jar Muluk Tar, Triangle Query, Positive Mex
August Challenge 2020 Division 1
Subsequence Frequency Counting, Smallest KMP, Chef and Wedding Arrangements
August Lunchtime 2020 Division 1
Game on a Strip, Quest for Dragon Balls, Counting Graphs, Alien Invasion
January Cook-Off 2021 Division 1
Mex Subsequence, Not Too Colourful, Prefix And
December Lunchtime 2020 Division 1 (Unrated)
K-Tuple Tree, Even Sequence, Three Letters, One Zero Swaps
January Lunchtime 2021 Division 1 (Unrated)
Good Grid, Dreams of Divisibility, Even Sum
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian, Doof fires Brackets, Jeremy gets a gift, Perry learns Binary, Unique Substring
September Lunchtime 2020 Division 1
Root the Tree, Robot Detector
March Challenge 2021 Division 1
Dense Graph, Consecutive Adding, Paparazzi Gennady, Space Arrays, Maximum Topological Sort
July Cook-Off 2021 Division 1
Beautiful Subsequence, Maximal GCD, Mod Equality, Hidden Colored Graph, Make the Matrix Beautiful
August Cook-Off 2021 Division 1
Odd Array, Different String, Chef 2 Chef, Interactive Equivalency, Clear the Array
September Challenge 2021 Division 1 (Unrated)
XOR Equal, Shuffling Parities, Minimize Digit Sum, Treasure Hunt, Airline Restrictions, Travel Pass, Minimum Digit Sum 2
SnackDown 2021 - Online Qualifiers
Lucky Number
October Lunchtime 2021 Division 1
Median Rearrangement, Tree Upshot, MAX-SEG, Maximum GCD
SnackDown 2021 - Online Round 1A
Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
November Challenge 2021 Division 1 (Unrated)
Functional Array, Wildcard Replacement, Weird Palindrome Making, Hill Sequence, Maximise the bridges, Convex Hulk
SnackDown 2021 - Online Pre-Elimination
Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers, Mega mu - 1, Guess the row
SnackDown 2021 - Online Elimination Round (Rated for all)
Random Convex Hull, Graduate Work Matters, Sorting Segments
January Lunchtime 2022 Division 1
Circular Permutation Recovery, Permutation XOR Sum, Divisible Distances
March Lunchtime 2022 Division 1
Subsequence, Mathology, Sussy Rooks, Winter, Adjacency Love, Separate Them All
May Cook-Off 2022 Division 1 (Rated)
Split Powers Of 2, Different Subarrays Rearrange, Triple Inversions
June Lunchtime 2022 Division 1 (Rated)
The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum, Minimum Xor On Segment, XOR, The Detective
September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)
Increasing Addition, Remove Numbers, Adjacent Pairs, Where Is the Root