Ri Hak Yong
- oilhun
North Korea- Student
- University of Sciences, D.P.R Korea
- No Active Plan. View Details
North KoreaRatings System Update
(2021-04-12 15:00:00)Ratings System Update
(2022-12-20 00:00:00)None
None
Hit the Coconuts, Guess the Prime!, Parity Again, Codechef War, Circular Merging, (Challenge) Codechef War II, Minimum and Maximum, Chef and Mean
Chefina and Swap, Move the Coins 2, Chef and Trump Cards, Find XOR, Rotate the Polyline, Chef and Sums, Move the Coins - Creating Tests, Divide Candies, Vibrating Paths (Challenge), Ada Matrix
Game on a Strip, Counting Graphs, Mode of Frequencies, Alien Invasion , Elevator, Ratings and Rankings
Inversions, Positive AND, Random Knapsack, Rooted Minimum Spanning Tree, Replace for X, D-Dimensional MST, Compress all Subsegments, Adding Squares, Village Road Network
Hail XOR, Square Root of LCA Convolution, Calculus, Linear Combination, Permutations, Digit Matrix, String Operations, Palindromic Equivalence, Positive Prefixes, Even Pair Sum
Dense Graph, Consecutive Adding, Paparazzi Gennady, Substring Probability, Space Arrays, Wireless Electricity (Challenge), Locked Safe, Random Walk Queries, Maximum Topological Sort, Clique Boolean Expression
Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Pair Flips, Water Sort Puzzle (Challenge), String Power, Chef and Dice, Brahma and Shiva, Boolean Game
Valid Paths, Tree House, An Interesting Sequence, King Killing, Xor Equality, Tic Tac Toe, Modular Equation
Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Dual Distance, Maximum Frequent Subarray Sum, Summer Heat, MathBuzz, Optimal Xor Set, Minimum Subtree Cover
XxOoRr, Chef vs Bharat, Even Odd Partition, Optimal Denomination, Chef and Pairs, Madoka and Ladder Decomposition, Dakimakura Distribition, K Path Query
Special Triplets, Array Filling, Geometry 1, Chef and Bulb Invention, Alternating LG Queries, Charge Scheduling, Chef and Digits of Large Numbers, Fat Hut, Problem Difficulties, Olympics Ranking
XOR Equal, Shuffling Parities, Minimize Digit Sum, Treasure Hunt, 2-D Point Meeting, Airline Restrictions, Travel Pass, Covaxin vs Covishield, Minimum Digit Sum 2
Chef at the Olympics, Longest AND Subarray, Digit Removal, MEX-OR, Yet another MEX problem, Characteristic Polynomial Verification, Hidden Points
Flip or Compress, Functional Array, Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Maximise the bridges, Convex Hulk
Increasing String , Yet Another Tree Problem, Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists, Min Manhattan Distance, 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
Geometric Mean Inequality, Yet Another LIS Problem, Antipodal Points, Flip to Invert, Chef And Division
Mystical Numbers, In The Green Zone, The Magical Stone, Alternating Diameter, Four Arrays
Full Path Eraser, Expected move, Reduce to zero, Add By Permutation, Divisible by i , Possible GCD
Counting Is Fun, Gcd and Lcm , AP Grid, The Subarray XOR, Reversal Sorting
Largest Square in the garden, Expected Difference, Game of Piles Version 1, Game of Piles Version 2, 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
A drawing game, Chef And Array Construction, Twos and Zeros, Binary Substituition, Building Race
MaxEdges, Minimize swaps, Minimum BFS Length, Alice and the Array
Counting Subsequences, Not Divisible, Break into Powers, Sum of Cube , Divisible by A_i
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