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Ratings System Update
(2025-02-19 22:15:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Contests (25)
CodeChef Starters 30 Division 4 (Rated)
Minimum Coloring, Gift Shop and Coupon, Chef and Water Bottles, Swapping Chefs Way, Chef and Chocolates, Balanced Reversals
CodeChef Starters 31 Division 4 (Rated)
XOR and AND, Alternating String, Sign Moves, Cup Finals, Mexy Array, The Unchanging OR, Group Assignment, Economics Class
March Lunchtime 2022 Division 4
Credit score, Sad Splits, Winter, Minimum number of coins, Buy 2 Get 1 Free, CRED Coins, Adjacency Love, Separate Them All
CodeChef Starters 32 Division 3 (Rated)
Maximize the Minimum, Binary String Cost, Finding Shoes, Training Plans, Flip Sorting
CodeChef Starters 34 Division 2 (Rated)
Binary Mismatch, Average Array, Binary String Xor, Count The Arrays, Good Permutation
April Lunchtime 2022 Division 2(Rated)
Buckets Full of Candies, Pair Pain, Do Not Touch the MEX!!!, Secret Machine Mania
May Cook-Off 2022 Division 1 (Rated)
Different Subarrays Rearrange, Triple Inversions
Starters 38 Division 1 (Unrated)
A Bit Easy, Average Gift, Anti-knapsack
July Cook-Off 2022 Division 1 (Rated)
Partition Queries, Segmentation Fault, Subsequence LCM
June Cook-Off 2022 Division 1 (Rated)
Throw and Take, Simple XOR, Prefix Suffix Distinct, Split AND Sum
Starters 44 Division 1 (Unrated)
Palindromes Not Allowed, Alternating Strings, Atleast and Atmost, Too Many LIS, Dense Bracket Sequence
Starters 43 Division 1 (Unrated)
Avoid The Landmines, Array Sorting, Make them Equal, The Optimal Pairs, Permutation AND, Burgers, DNA Storage, Distinct Palindrome, Joining Date, Waiting Time
Starters 46 Division 1 (Unrated)
Prime Xor, Vowel Anxiety, Maximum Diversity, Equal Subsequences, Array sorting, Sort the String
Starters 47 Division 1 (Unrated)
Too Many LIS 2, Chef and Minimum Cost of His Tree, Copy and Push Back, Similar Heights, The XOR-OR Dilemma
Starters 50 Division 1 (Unrated)
Air Blimp, Beautiful Array, Sum Product Segments, Add Subtract Equalize, Average Permutation
Starters 51 Division 1 (Unrated)
Chef & Cook Game, Adjacent Xors, Copy and Paste, Different Medians
August Lunchtime 2022 Division 1 (Rated)
Tree Coloring, Subtract 12 Operation, MEX Permutation Difference
Starters 53 Division 1 (Unrated)
Black&White Ring Game, Rocket Pack, Make A and B equal, Queen Blocks
Starters 54 Division 1 (Unrated)
Equal Distinct, Subarray Game, Departments (Hard Version), K Flip, Departments (Easy Version)
Starters 55 Division 1 (Unrated)
Disgust Minimization, Non Zero Xor, Ball Sequence, Balls and Boxes, Arithmetic Jumping, OR Tuples
September Long 2022 Division 1 (Unrated)
Yet Another Chef And Numbers, Distinct Numbers, Pokemon Battles, Alone Alice!, Interesting Subarray
Starters 56 Division 1 (Unrated)
K-Subarrays, Energetic Node(Easy Version), Palindrome Swaps, Binary Substitution
September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)
Increasing Addition, Adjacent Pairs
Starters 57 Division 1 (Unrated)
Delicious Queries, Maximum Expression, Even Splits, Two Different Palindromes
October Long 2022 Division 1 (Unrated)
A drawing game, Chef And Array Construction, Twos and Zeros, Binary Substituition
Starters 60 Division 1 (Unrated)
Distinct Numbers, Maximum Sum, Red Green Grids, Yet Another Palindrome Problem, Tri XOR
Starters 61 Division 1 (Unrated)
Palindrome Partition, Weird Subarrays, Red Blue Flowers, Row Bombing, Subarray Removal
Starters 62 Division 1 (Rated for 5 & 6 stars)
Disjoint XOR, Sorted Substrings, Make Multiple
Starters 63 Division 1 (Rated for 5 & 6 stars)
Distinct Neighbours , Maximize 1s, Count Partitions , GCD Sort, Make Length 1, Minimum Absolute Score, Greedy Grid Moves
Starters 65 Division 1 (Rated for 5 & 6 stars)
Nahaane Jaa, Paisa Double, Binod, Gormint Aunty, Potato to Gold
November Long 2022 Division 1 (Unrated)
MaxEdges, Minimize swaps, Minimum BFS Length, Alice and the Array
Starters 66 Division 1 (Rated till 5-stars)
Sorting the Binary String, Good Binary Strings, Palindrome by Splitting, Connect All Cities, Palindrome In Making, Minimum value of special tables
Starters 67 Division 1 (Rated till 5-stars)
Maximum Angriness, Musical Rods, Count Number Of Pairs, Existence Of X
Starters 68 Division 1 (Rated till 5-stars)
Guess All, Boring String, XOR Product, Interesting Array, Make Money
Starters 69 Division 1 (Rated till 6-stars)
Make everything divisible by 3, Passing Through!, Distinct Sequence, Longest Subarray
Starters 70 Division 1 (Rated till 6-stars)
Square Loop, Strange Bitwise Operation, X AND Y Tree, Two Counters, Prime Reversal, Frequency Array Retrieval
Starters 71 Division 1 (Unrated)
Flip the Prefix, Unique Mode, Expected Sum, Maximizing LCS, Smallest Difference
Starters 72 Division 1 (Rated till 5-Stars)
N Triplets, Good Sequence, Good Arrangement, Max Graph, No sequence, Base or Bias, XOR Tree
Starters 73 Division 1 (Rated till 6-Stars)
Minimum OR Path, Find an integer, Consecutive Xor, First To Last, Hamiltonian Tree, Elevators
February Cook-Off 2023 Division 1 (Rated)
Take Not Less, Alice Potter And Dumbledore Army
Starters 77 Division 1 (Rated till 5 Stars)
Yet Another XOR Sort, Sort a String, K Forests, Concat Palindrome, K Increment Palindrome, Three Numbers
Starters 79 Division 1 (Rated till 5 Stars)
Love Squares Hate Cubes, K-Beautiful Subarrays, Mountain, One Stone or Two Stones, Split or Decrease
Starters 80 Division 1 (Rated till 5 stars)
Permutation Subsequence, c8kbf and Tree, Prefix Permutation, Eat Rock!, Matrix Pain
Starters 81 Division 1 (Unrated)
Beautiful Strings, Horde Chess, Unimodal Subsets, Good XOR, Distinct Matrix, Arrange the array, Binary Ternary
Starters 82 Division 1 (Rated till 6 stars)
Make Them Alike, Find eX, Good Permutations, Difference Matrix
Starters 84 Division 1 (Rated till 6 Stars)
MEX Sequences, SUM OR, Twice GCD Thrice LCM, Max count of 1, Digit Operation, Chef And Adjacent Sums
Starters 85 Division 1 (Rated till 6 stars)
Crazy Bishops on Chessboard, Efficient PAN Linking, Tree Xor, GCD Queries, Bomb Blast, TripTastic
Starters 86 Division 1 (Rated for All)
Least Size, Minimum Operation, String Game , Largest Y
Starters 87 Division 1 (Rated till 6 Stars)
Inversions of subsequences, AB plus C
Starters 83 Division 1 (Rated)
Mex Segments, Construct String, Order by XOR, Saber Slays, Rotate to Minimum, Restoration
Starters 88 Division 1 (Rated till 6 Stars)
Maximum And Or, Chef and Asteroids, Minimize the Bits, Chef and Good Array
Starters 89 Division 1 (Rated till 5 Stars)
Positive or Negative Subarrays, Subarray Removal, Two Averages, Restore Communication, Evil Infection
Starters 91 Division 1 (Rated till 6 Stars)
XOR & Sum, Odd GCD Permutation, Chef Odd, Maximum Sum Permutation
Starters 92 Division 1 (Rated till 6 Stars)
Rectangular Tiling, Dividing into Groups, Chef and Polygons, Chef Graph, Beautification of array, Distance Coloring
Starters 93 Division 1 (Rated for All)
Thank U, Next, NASA, Greedy, Bloodline, Motive
Starters 98 Division 1 (Rated till 6 Stars)
3-Blast Palindrome, Happiness , Build Towers, Ball Distribution, Sub-Array With Maximum Sum
Starters 99 Division 1 (Rated till 6 Stars)
Segment Three, Maximize Ones, Musical Chairs, Two Piles, Yet Another Bitwise Problem, Exclusion-Inclusion
Starters 100 Division 1 (Rated)
Prime Permutation, Stamps 100, Concussive Sequence, Ant
Starters 103 Division 1 (Rated till 6 Stars)
Squarified, X-Ray Grid, Chandelier, Unique xor, Divisible By 8
Starters 105 Division 1 (Rated till 6 Stars)
Ghoul-icious Goodies, Spooky Sequences, Dull Operation, Wishcraft
Starters 106 Division 1 (Rated till 5 Stars)
Playing with OR, Save People, Guess the winner!, Count Possibilities, Smallest Excluded LCM, Reach Anywhere, Summing the values, Is it Obvious
Starters 109 Division 1 (Rated till 5 Stars)
Minimum XOR, Chef Lost an Array, Alter Ego, Chroma Swap, Rigged Game
September Short 2023 Division 1 (Unrated)
GCD Discount, Ultimate Fencing, Lucky Seven, Slow Start, Mixing Extraordinaire
Starters 110 Division 1 (Rated till 5-stars)
Marbles, Am I Lucky!, Tom and Jerry, World Cup, Monsters, Tetris
Starters 113 Division 1 (Rated)
Count Distinct Arrays, Minimise Maximum Subarray Sum, Make All Equal, Score Sum, Maximum Score
Starters 118 Division 1 (Rated till 5-Stars)
Count Substrings, Join States, Is it uniquely decodable, Xorry 2, Xorry 1
Starters 122 Division 1 (Rated till 6-Stars)
Arya In Grid, Transformation Cost, Matrix Modulo, Elf on the Shelf
Starters 124 Division 1 (Rated till 5-Stars)
Swap and Unite, Make It One, How many arrays, It is a tree
Starters 131 Division 1 (Rated till 5 Stars)
K-Closeness, Digit Space, Encrypt Value, T-Perm
Starters 132 Division 1 (Rated till 6 Stars)
ALIEN-OR, Optimal Flip, Goodness Over Good, MEX QUERIES , Prime Query, Mex Path
Starters 140 Division 1 (Rated till 5-Stars)
Lucky Matrix, Split Permutation, Trick Or Treat, Break The String, Tree Removal
Starters 142 Division 1 (Rated till 5-Stars)
Sum of Xors, Pairs Sum with Length x, The Cards Machine, Array Removal, Number Hunt
Starters 144 Division 1 (Rated)
Find P, Minimise Inversions, Largest K
Starters 145 Division 1 (Rated till 6-Stars)
Beautiful Array, Make Bob Win , Querified, Token Passing on Tree, Square String
Starters 146 Division 1 (Rated till 5 stars)
Back Front, Bouncing Ball, Permutation Construction
Starters 148 Division 1 (Rated till 6 stars)
Xor Minimization (Easy), Double Trouble, Beautiful Flip, The Undisappearance, ZigZag Tree Sequences (Easy)
Starters 161 (Rated)
Min-Max Game, Red-Blue Sort, The XOR Machine, One To Three, Quick Exit
Starters 167 (Rated till 5 stars)
Alternate Universe, Temperature Balance, Lottery Tickets, Sum Over Subarrays, Grid Construction (Even), Grid Construction (Odd)
Starters 174 (Rated upto 2700)
GCD Add Size, Meximal Sum, Mystic Slimes