North KoreaRatings System Update
(2024-09-04 22:30:00)Ratings System Update
(2022-12-20 00:00:00)None
None
Chef and Railway Stations, Expected Change, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
Chef and DAG, XOR Engine, Break, Ada Bishop 2, Winning Ways 2, Lasers Everywhere, Lasers Everywhere Alternative, Pintu and Fruits, (Challenge) 300 IQ Ants
Buying a New String, Triple Sort, Binary Land, Sorting Vases, Not a Real World Problem, Chef and Rainbow Road, Chef and Bitwise Product, (Challenge) Nanobots, Precise Pairing, Precise Bipartite Pairing
Permutation Split, Root the Tree, Robot Detector, Few Different Elements
Valid Paths, Tree House, An Interesting Sequence, Xor Equality, Modular Equation
Prefix as a Substring 2, Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference
Insider Subsequences, Queens Placement , Largest Laddu, Help Nishant
Flip or Compress, Functional Array, Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Maximise the bridges, Convex Hulk
Product Pain
Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, Squares Counting
Sequence Master, Generating Cycles, Retrieve back the Array, Chef and Riffles
Array Partition, Power Sum, Tree Master, Sum and OR, Crying Colours
Random OR, Digit Multiplication By K, Binary Base Basics, Bitwise Blend, Remove Adjacent
Sequence GCD, Area Sums in Convex Polygons, Bitwise swaps, Xor Palindrome
Subarray XOR, Substring of a Substring, Count the Ones, Exact Marks, MEX on Trees
Minimum Longest Substring, Same Parity Swaps in Binary Strings, Kostomuksha and AESC MSU, Perfect Imperfections 2
Yet Another Mex Problem, Dazzling AXNODR Challenge , Bullets and Enemies, Min Max Equality, Pairwise Xors
Full Path Eraser, Expected move, Reduce to zero, Add By Permutation, Divisible by i , Possible GCD
AP Grid, Reversal Sorting
Largest Square in the garden, Expected Difference, Game of Piles Version 1, Find A, B, C
Maximize Difference, Concat Sort, Sum of Product 2, Similar Subsequence
Angled Flip, Tree of Trees, XOR with smallest element, Hello Equation, Crazy Subsequences
Yet Another Chef And Numbers, Distinct Numbers, Pokemon Battles, Alone Alice!, Interesting Subarray
Chef And Array Construction, Twos and Zeros, Binary Substituition
MaxEdges, Minimize swaps, Minimum BFS Length, Alice and the Array
Counting Subsequences, Not Divisible, Break into Powers, Sum of Cube , Divisible by A_i
A Short Counting Problem, Swap Shift, Maximum of GCDs, Symmetric Swaps, Minimize the Maximum
XOR & Sum, Odd GCD Permutation, Chef Odd, Maximum Sum Permutation
A power B mod C , TRIPLE PRIMES, K Subarray Products, Prefix Suffix Inequality, Cyclopian Edges, Breezy Mode Problem, Heat Wave, Long Drive, Distinct Substring
Lucky Matrix, Make Permutation, Split Permutation, Trick Or Treat, Yoga Day, Break The String, Yoga Class, Tree Removal
Maximise Sum, Chef Loves Beautiful Strings (Easy Version)
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