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- 7★uwi
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Ratings System Update
(2021-12-13 16:30:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Contests (212)
February Cook - Off Challenge:
Integer Sequences, Breaking Into Atoms, Three Way Communications, Dance Floor Energy
August Cook-off 2011:
Vote for the Noodle Soup, Open the Dragon Scroll, Rotate the String, Angry Chef - Crispy Chips, Collect the Chocolate Chips
October Cook-off:
Generalized Arithmetic Progression Free Sequence, Permute Digits, First non-Palindrome, Chef Travel Routes
February 2012 Challenge:
Box and Ball System, Lucky Count, Restore the Recipe, Lucky Long, Find a Subsequence, Smart Chef vs Evil Chef, Word Couting, Count of Maximum
April Challenge 2012:
PDS Number, Lucky Array, Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight, Similar Graphs
April Cook-Off 2012:
Selection for Training Camps, Top Batsmen, Crease Painting, Resistance, Best Buggy Ratings
May Challenge 2012:
Digits Forest, Killing Gs, Little Elephant and Median, Jewels and Stones, Lucky lucky number, Selling Tickets, Divisible Pairs, Remember the recipe, Little Elephant and Boxes, A Home for Chef
August Cook-Off 2012:
Rebuilding Byteland, Codechef Password Recovery, Forced Output, Code Crazy Minions, Asmany Number Verification
September Cook-Off 2012:
Pizza Tossing, Prime Permutations, Recipe Reconstruction, Carvans, Coal Scam
November Cook-Off 2012:
Little Elephant and Magic, Little Elephant and Permutations, Little Elephant and Divisors
December Cook-Off 2012:
Expected Greatest Common Divisor, Root of the Problem, Packaging Cupcakes, Reversing directions
February Cook-Off 2013:
Lack of Logic, Row and Column Operations, End Of The World 2, Hotel Balifornia 2
April Cook-Off 2013:
Andrew and the Birthday, Andrew and the Meatballs, Andrew and the Strings, Andrew and the Meatballs again
August Cook-Off 2013:
Chef and The Right Triangles, Chef and The Divisibility Queries, Chef and The String of Digits
October Cook-Off 2013:
Polo the Penguin and the Lucky String, Polo the Penguin and the Numbers, Polo the Penguin and the Test, Polo the Penguin and the XOR, Polo the Penguin and the Tree
October Lunchtime 2013:
Girl Friend and String Gift, Combinatorial Numbers, Exponential Game, Chefs in Queue
November Cook-off 2013:
Am I a Fibonacci Number, Lowest Sum, Number of Paths, Trees and Subtrees, Rank of the Number
November Lunchtime 2013:
Lucy and the Number Game, Lucy and the Math Analysis, Lucy and Palindromes, Lucy and Question Marks
December Cook-off 2013:
Chef and Substrings, Chef Goes Through Segments, Chef and Girlfriend, Chef and Combinatorics
December Lunchtime 2013:
Perfect Subarrays, Mike and Task Packages, Mike and Matrices , SuperFunction
February Cook-Off 2014:
Chef and Remissness, Chef and Kingship, Chef and Uniqueness, Chef and Reunion
March Cook-Off 2014:
Game of Divisors, ABC-Strings, XOR Minimization, 3-Palindromes, Dividing Stamps
June Cook-Off 2014:
Where the Wild Things Are, Counting Flags, Knapsack Problem, Painting, Idols and Fans
September Cook-Off 2014, ACM-ICPC Warm up:
Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2, Updating Edges on Trees
October Cook-Off 2014:
The Dirty Path, The Army, Walk on the Axis, Substring and five rules, Mahesh and his lost array
March Lunchtime 2014:
How many sequences, Nice SubSegments, A Game With a Sheet of Paper, Statements Checking
September Lunchtime 2014:
Chef and easy problem, Chef and easy problem 2, Chef and medium problem , Chef and medium problem 2
November Lunchtime 2014:
A wolf, a sheep and cabbage, Deja Vu, Yet another substring problem, Dividing the Students
December Lunchtime 2014:
Delivery Man, Sum Of Binomial Coefficent , Queries On Tree, String Matching
January Cook-Off 2015:
Suraj goes shopping, Tojo hates probabilities, Anup at Amrithapuri, Random Rudreshwar, Abhijeet and rectangles
February Cook-Off 2015:
Zombinatorial, Parenthesis with Maximum Sum Subarray, Fit Squares in Triangle, Strategy for the World Cup
March Cook-Off 2015:
How to Minimize a String, How to Choose a Subset, How to Write a Message, How to Repaint a Fence
May Cook-Off 2015:
Devu, his friends and birthday gifts, Devu and friendship testing, Devu and decorating birthday cake, Devu and most energetic minion
June Cook-Off 2015:
Ankit, Srijan and a game of stone piles, Bored of Nim, Longest non regular parentheses sub-sequence, Strange operations
July Cook-Off 2015:
Cops and the Thief Devu, Maximize Disjoint Pair Sum, Path containing K Nodes, Adding Special Sum, Adding Up Sequences of Towers
August Cook-Off 2015:
Chef and the XORed Number , Chef and the Number Sequence, Chef and the Wildcard Matching
September Mega Cook-Off 2015:
Reign 2, Counting Subgraphs, Forgotten Language, Super Numbers, Stacks
November Cook-Off 2015:
Sereja and Line, Sereja and Array and Subtracting, Sereja and Pairs, Sereja and Tree, Sereja and Tree 2
June Lunchtime 2015:
Chef and Bitwise OR Operation, Chef and Submatrix, Chef and Two Strings, Chef and Sets
November Lunchtime 2015:
Chef And A Complete Graph, Query over Matrix, Black And White Cells, Product on Tree
January Cook-Off 2016:
Chef and Destruction, Chef And Palindromes, Chef and Maximum Sum Matrices , Chef And Fibonacci Tree, Chef and Fruits
March Cook-Off 2016:
Not even planar, Digital clock, Dual Nim, Alternating subarray prefix, The potato problem
April Cook-Off 2016:
Movie Weekend, Odd Divisors, Queries on a Binary Tree, LCP Maximization, Bit Twister on a Tree
July Cook-Off 2016:
Chef and Proportion, Chef and Numbers, Chef and Land, Chef and Array, Chef and Sort
September Cook-Off 2016:
Lazy Jem, The Lost Arithmetic Sequences, Counting Strings, Shortest path queries
October Cook-Off 2016:
Sherlock and the Ugly Flower, Watson asks Does Permutation Exist, Sherlock Counts Ways, ChefWatson uses Social Network, Sherlock and Smallest Window
November Cook-Off 2016:
Sebi and the equation 2, Sebi and the cube, Sebi and the highway, Sebi and the black money, Sebi and the corrupt goverment
February Lunchtime 2016:
Chef and Socks, Chef and Tic-Tac-Toe, Chef and Polygons, Chef and Dominating Subarrays
July Lunchtime 2016:
Will and Closed Set, Drumpf for President!, Lumpy - The Bus Driver, So Close Yet So Far
November Lunchtime 2016:
Chef and his Students, Chef and Square Set, Chef and Balanced Polygons, Tom & Jerry
January Cook-Off 2017:
Digit Longest Increasing Subsequences, Xor Grid, Matrix Transformation, Digit Longest Increasing Subsequences 2
February Cook-Off 2017:
Download file, To add or to multiply game, Mixing flavors, Chairs, Cooking Game
February Lunchtime 2017:
Bear and House Queries, Bear and Milky Cookies, Bear and Bribing Tree, Bear and Oveflow Points
March Cook-Off 2017:
Rainbow Graph, Meeting location, Yet Another Card Game, Increasing Xor Sequence, Safe Robot
July Cook-Off 2017:
Chang and Bitwise OR, Chang and the Perfect Function, Chang and Perfect Quadruples, Chang and Beautiful Sequences, Bipartite Graph from Trees
August Cook-Off 2017:
Tree Connectivity, Game on Stick, Matrix and Chef, Real obtuse, From heaven to earth
September Cook-Off 2017:
Numbers Game, Infinite OR Game, Statistics Construction, Subsequence Equality, Mixing Colors
October Cook-Off 2017:
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries, Chef and Dancing Steps, Chef and Math Test
April Lunchtime 2017:
Bear and Digit Virus, Bear and Segments, Closest points queries, Bear and Segment 01
August Lunchtime 2017:
Mathison and the Dynamo shuffle, Mathison and pangrams, Mathison and the teleportation game, Mathison and the cubic tree
September Lunchtime 2017:
Chef and Dice, Chef and Cook-Off Contests, Chef and Programming Contest by His Friend
IOPC 2017 (Rated):
The Birthday Tears, Game Of Life, Max Out, Christmas Time, Solve the Assignment, Help your friends
January Cook-Off 2018:
Multiple of 3, Make array great again, Finding the matrix, Survive in ChocoLand
January Lunchtime 2018:
Chef and Game with Sequence, Chef and Average on a Tree, Chef and Function, Chef and Escaping from the Labyrinth
March Cook-off 2018 Division 1:
Maximum Tree Path, Chef Goes to the Cinema, Chef Restores an Array, Chef Chooses a Subset, Chef Restores a Matrix, Chef Judges a Competition
June Cook-Off 2018 Division 1:
Masha and Minions, Sonya and Segments, Danya and Numbers, Batman and Tree, Good Permutations
July Cook-Off 2018 Division 1:
OR Matrix, Finding Second Maximum, Chef and Queries on a Tree, Chef and GCD Game
August Cook-Off 2018 Division 1:
GukiZ and Candies, Mixi Game, Hack Fulu, No Queries No Fun, Standard Tree Task
September Mega Cook-Off 2018 Division 1:
OneTwo, Learning Dishes, Dot It, Make a Permutation, Ghayeeth vs Siroj
November Cook-Off 2018 Division 1:
Data Pipelines, Beautiful Garland, A-B Game, Tree Unattractiveness, Elephants in a Pond
December Cook-Off 2018 Division 1:
Count Subsequences, Swag Subsets, Yalalovichik Numbers, Yalalovichik Strings
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:
Sum on Tree, Count Substrings, Shifted Palindrome, Weak in the Middle, Maximum Plus
June Lunchtime 2018 Division 1:
Unusual Sorting, Sort the Leaves, Permutation Composition Queries, Summary Power
July Lunchtime 2018 Division 1:
Forced Particles, GCD Sum, Make a String, MEX and Ranges, Prime divisors
August Lunchtime 2018 Division 1:
Chef and Eid, Swimming Pool, 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
November Lunchtime 2018 Division 1:
Useful Number, Median, Maximize It, Probability, Beats and Pieces
October Lunchtime 2018 Division 1:
Robots Again, Coloring the Grid, Weird Question, Tree Walk, Niceness of the Arrays
ALKHWARIZM (Rated):
Harry in the Chamber of Secrets, Help Voldemort, Hedwig The Smart Bird, Room Of Requirement, Harry Potter and the Goblet of Fire, Harry Potter and the Deathly Hallows - 2, Deathly Hallows and The Cloak Of Invisibility, Wingardium Leviosa, Sam, The Charming Angel
Code Melange (Rated):
XD Subsequences, Subsegment Sum, Y Figures, Xorangements, CPI Crisis, Longest Constrained Subsequence, The Deadly Sin, Computer Virus, Candy Love
Coders' Legacy 2018 (Rated):
Useless Clocks, Fibonacci String, Killing Zombies, The Kingdom of Ererraveth, Triangles in a Grid
ProCon 2018 (Rated for all):
The Great Run, Kill them with your success, Awkward Pairs, Algebra Score, Good Speech, The Illusionist
February Cook-Off 2019 Division 1:
Max Range Queries, Chef and Secret Password, The Most Amazing Dish, Chef in Evil Land, Chef and Party
February Lunchtime 2019 Division 1:
Roll the Bar, Families of Chefland, The Tricky Deal, Chef Challenge
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
March Lunchtime 2019 Division 1:
Corrupted Seven-Segment Display, Tree Flow, Travelling Saleschef, GCD Subsequences, Partition into Permutations
April Cook-Off 2019 Division 1:
Doubly Increasing Path, Random Game, Pied Piper vs Hooli, Mystery Tree, Guess My Age
April Lunchtime 2019 Division 1:
Dream Problem, The Last Droid, Firdavs and Planet F, Minimum Sum, Chef Rami and Inventions
May Cook-Off 2019 Division 1:
Misha and Nice Sets, Bitsetbaba and Power Grid, Expected Xor, Searching for a Biclique
May Lunchtime 2019 Division 1 (Unrated):
Grid Tour, Reverse Maximisation, XOR Magic, Intervals and Intersections, Abdullah and Toll Discounts
June Cook-Off 2019 Division 1:
Zawad and Index Sum, Nice Subsets, The Secret Recipe, Ants and Anteaters, Drink Slush
June Lunchtime 2019 Division 1:
Fuzzy Conversions, The Grux Permutation , Gii and His Club, Igzi and Burly Array, Ivan Pesic and His World Tour
July Cook-Off 2019 Division 1:
Birthday Gift Again, War in Treeland Again, Minimum and Maximum, Magical Menu, Expected Product
August Cook-Off 2019 Division 1:
Magic Permutations, Warriors, Rich Substrings, Friends and Candies, Two Circles
August Lunchtime 2019 Division 1:
Beauty of Pairs, Beauty of Segments, Equal Average, Destroy Cells, Chef Does Coke Yet Again
September Mega Cook-Off 2019 Division 1:
Save Jewels, Angry Grandfather, Hiring Chefs, Fitness Exercises
September Lunchtime 2019 Division 1:
All Substrings, Ice Cream Queue, Treeversion, Apples and Oranges, Find the Sum
October Lunchtime 2019 Division 1 (Unrated):
Counting Inversions Again!, Double Distance Query, Box Game, Kth Numbers
November Lunchtime 2019 Division 1:
Team Trees, Planting Trees, Washing Windows, Perfection, Servers
December Cook-Off 2019 Division 1:
Xor It, Crash It, Make It, The Inexplicable Giant Floating Baby Head
Alkhwarizm (Rated for all):
Arya and the Grid of Stars, Cersei and her Soldiers, Game of Theory, Winter Is Here, Weirwood Trees, Danny Wants To Know, They are COMING
January Cook-Off 2020 Division 1 :
Almost Palindromic, Profitable Paths, Count It, Range AND, Chefina and Sums
February Cook-Off 2020 Division 1:
Must Be Divisible, Maximum Subsequence Sum, XOR Game, Sweetest Candy , Chef and Pepperoni Pizza Again
March Cook-Off 2020 Division 1 :
Mysterious Sequence, A Tree to Remember, Maximize Letter Beauty, Random Chocolates, Escape the 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, Curious Queries
January Lunchtime 2020 Division 1:
Minimum and Maximum, Construct Array, CCDSAP Exam, Under the Tunnels, Folding Paper
February Lunchtime 2020 Division 1:
Coronavirus, Painter Problem, Swapping to Palindrome, Monsters Battle, Secret Mission
May Lunchtime 2020 Division 1:
GCD of the Submasks, Absolute Min Max, Escape One, Convert the String, Tree difference
UWCOI 2020 (Rated for all):
Button Pairs, Base Plans, Find maximum in an Array, Blocks, Mercury Poisoning, Escape, Optimal Memory Address
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, Coloured Pairings, Binary Concatenation , Pairs of Pairs
August Cook-Off 2020 Division 1 :
Red-blue Trees, Polygon Relationship, Chefina and Dishes, Beautiful Subsequence
June Lunchtime 2020 Division 1:
Maximum AND, Chef, Chefina and Restoration, Kuroni and the Cowsheds, Gold Mining, Square Submatrices
RECode 12.0 (Rated for all):
Chef and String, Chef and Walk, Chef and Rotation, Chef and Or, Chef and Subsequences, Chef and Array, Chef and Numbers
October Cook-Off 2020 Division 1:
Path-etic Sums, An Inveractive Problem, The In-XOR-able Task, Isomorphic Morphism, Yet Another Crossover Episode
November Cook-Off 2020 Division 1:
Flip the String, Chef and IPC Certificates, Graph Construction, Hiring Workers
October Lunchtime 2020 Division 1:
Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Counting Spaghetti, Cute Chef Gift
Coders' Legacy (Rated for all):
Chef vs Doof, Doof on Cartesian, Doof fires Brackets, Jeremy gets a gift, Perry learns Binary, Unique Substring
September Cook-Off 2020 Division 1 :
Joined Subarrays on Tree, Balancing Game, Maximise Subsequence Value, Minimum Insertions, Graph Labelling
September Lunchtime 2020 Division 1:
Permutation Split, Root the Tree, Robot Detector, Few Different Elements
SnackDown 2021 - Online Qualifiers:
Prefix as a Substring 2, 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