SongChol Ryu
- kutengine
North Korea- Student
- Kim Chaek University of Technology
- No Active Plan. View Details
North KoreaRatings System Update
(2018-04-17 15:00:00)Ratings System Update
(2022-12-20 00:00:00)None
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Little Elephant and Mouses, Collecting Magical Berries, Just Some Permutations 3, Dessert Wizard, Two k-Convex Polygons, Count Special Matrices, Predictopus, To challenge or not, W String, Lapindromes
Little Elephant and Exams, Merciless Chef, Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2, To Queue or not to Queue, Two Roads, Sereja and Snake
CAO Stage-3, Three-Degree-Bounded Maximum Cost Subtree, Fibonacci Number
Substrings and Repetitions, Book Game with Chef, Divide the Cake, Ups and Downs, Build the Tree
Where the Wild Things Are, Counting Flags, Knapsack Problem, Painting
Copy-Paste, Sum Queries, Friends
Tree Game, Permutation Shuffle, Shooting
Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2
The Dirty Path, The Army, Walk on the Axis, Mahesh and his lost array
Final Battle of Chef, Sereja and Permutation, Counting Matrices, Farmer Feb, Cards, bags and coins, Chef and Digits, Divide the Tangerine, Make It Zero 3, Chef and Tree Game, Shortest Path in Binary Trees
Little Elephant and Painting, Garden Game, Chef and Frogs, Sereja and Equality, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner, Lucky Game, Game of Numbers
Sereja and Order
Kali and Devtas
Substring Query, Coprime Triples, The Smallest Pair, Dynamic Inversion
And Operation, Shift The String, Lowest Common Ancestor, Simple Editor
Harrenhal, Iron Islands
Chef and easy problem, Chef and easy problem 2, Chef and medium problem , Chef and medium problem 2
Queries on the String, Sereja and Number Division 2, Chef and A Large Permutation, Sereja and LCM, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Xor Queries, Ranka, Gcd Queries
Piece of cake, Candidate walk, Just multiply, Many bananas
Chef and Chain, Time to Study Graphs with Chef, Chef and Strange Formula, Chef and Strings, Payton numbers, Let us play with rank list, Xor Matrix, Jigsaw Puzzle Solving, Chef and Equality, Devu and Locks
Count Substrings, Chef and Notebooks, Chef and Problems, Embedding, Sereja and Random Array, Random Number Generator, Devu and his Class, Sign Wave, Matrix, Counting on a Tree
Count Sequences, Chef and Array, Chef and Interview, Broken Telephone, Inversion sorting, Division of Lands, Chef and Piano Scales, Little Party, Black-white Board Game, Devus and their voting system
Devu and his three Hands, Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe, Chef and Balanced Strings, Shopping, Chef and Cake, Counting on a directed graph, Special Economic Zone
Chef Anup
Sereja and Two Strings 2, Polygon & Circles, Chef And Hungry Birds, Palindromic substrings, Floor Distribution, Chef and Number Guessing, maximize the sum, Parity tree, Chef And Special Dishes, Tiptoe through the tulips
Chef and Digits, (CH) Serejs and Billiards, Bear and Random Grid, Chef and Divisor Tree, Stable market, Heavy-Light Decomposition, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
Logan and his XOR debacle, X-24 and his SUBSET code, Professor X and Grouping of Numbers
The Birthday Tears, Game Of Life, Max Out, Christmas Time, Solve the Assignment
Couples sit next to each other, Prefix borders, Game with numbers, Jumping in the hills
Pishty and Triangles, Chef and Interval Painting, Chef Cuts Tree, Chef and Easy Problem, Chef and Gcd Queries, Mix the Colors, Minions and Voting, Embedding a Tree (Challenge)
Chef and Array (Challenge), Vaibhav and Ministers, Chef at the Food Fair, Cutting Plants, S Semi-palindromic, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes, Chef and Same Old Recurrence 2
Correct Bracket Sequence, Count Nodes, Split Sums, A Game of Game, High Interview, DP Made Easy, Strange Swaps, Function Function
Counting Is Fun, Gcd and Lcm , AP Grid, The Subarray XOR, Reversal Sorting
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
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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