SongChol Ryu
- 7★kutengine
- ICPC Team member of Kimchaek University of Technology
- North Korea
- Student
- Kim Chaek University of Technology
- List of teams by SongChol Ryu
- No Active Plan. View Details
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Ratings System Update
(2018-04-17 15:00:00)Ratings System Update
(2022-12-20 00:00:00)CodeChef Rating Distribution
Submissions
Practice Problems (37):
Practice:
Relevant Phrases of Annihilation, Swarm of Polygons, Counting Terms, Icing Crowns, Block Drop, Magic Trick, Eastern Draughts, Counting The Important Pairs, Sereja and Sorting, Deleting numbers, To Queue or not to Queue, Two Roads, Sereja and Snake, ForbiddenSum, Query on a tree VI, Bon Appetit, Please like me, Chef and Feedback, The Street , Sereja and Number Division 2, Kali and Devtas, Substring and five rules, Embedding, Shinigami and Apples, GCD on Tree, Max Subarray GCD, Alternating Colored Paths, Acyclic Graph, Poker Chips, Subarray Sum, Count Permutations, Maximum Magic Walk, Magical Strings, The making of a cake, Optimum Selection, Chef and Array (Challenge), So Straight
Contests (258):
June Challenge 2013:
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
September Challenge 2013:
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
May Cook-Off 2014:
Substrings and Repetitions, Book Game with Chef, Divide the Cake, Ups and Downs, Build the Tree
September Cook-Off 2014, ACM-ICPC Warm up:
Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2
April Challenge 2014:
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
July Challenge 2014:
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
September Lunchtime 2014:
Chef and easy problem, Chef and easy problem 2, Chef and medium problem , Chef and medium problem 2
Matrix 2014:
Date, Tom and Jerry, Jerry and Fibonacci, Run Jerry Run, Stick Game, Arithmetic puzzle, Flight Tickets
January Challenge 2015:
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
February Challenge 2015:
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
March Challenge 2015:
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
April Challenge 2015:
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
May Challenge 2015:
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
CodeVaitam:
Easy Mathematics , Strings vs Integers, Story of Berland, Kisses, Robin and Gold coins, Unlucky Gambler, Chef and Daughter
March Challenge 2016:
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
SRM Codejam [Qualifiers]:
Introductory Problem, Help Sumit, Vipul - The Bracket Checker, Simple Multiplication
CODE BLOODED:
Central City Aviation Problem, Sukhs Documentation, Mr Lathi and his Numbers, MUDDLED ROHAN
Techfest International Coding Challenge - Game of Codes:
Rulers of Investments, Saving Search, Annual Party, Cafeteria Vendor, Techfest Coding Challenge
April Challenge 2017:
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
Alkhwarizm 2017 (Rated):
Logan and his XOR debacle, X-24 and his SUBSET code, Professor X and Grouping of Numbers
February Lunchtime 2018:
Couples sit next to each other, Prefix borders, Game with numbers, Jumping in the hills
March Challenge 2018 DIV 1:
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)
April Challenge 2018 Division 1:
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
Insomnia 2018 (Rated):
Correct Bracket Sequence, Count Nodes, Split Sums, A Game of Game, High Interview, DP Made Easy, Strange Swaps, Function Function
June Long Two 2022 Division 1 (Unrated):
Counting Is Fun, Gcd and Lcm , AP Grid, The Subarray XOR, Reversal Sorting
July Long Two 2022 Division 1 (Unrated):
Maximize Difference, Concat Sort, Sum of Product 2, Similar Subsequence
August Long 2022 Division 1 (Unrated):
Angled Flip, Tree of Trees, XOR with smallest element, Hello Equation, Crazy Subsequences
September Long 2022 Division 1 (Unrated):
Yet Another Chef And Numbers, Distinct Numbers, Pokemon Battles, Alone Alice!, Interesting Subarray
October Long 2022 Division 1 (Unrated):
A drawing game, Chef And Array Construction, Twos and Zeros, Binary Substituition
November Long 2022 Division 1 (Unrated):
MaxEdges, Minimize swaps, Minimum BFS Length, Alice and the Array
December Long 2022 Division 1 (Unrated):
Counting Subsequences, Not Divisible, Break into Powers, Sum of Cube , Divisible by A_i
Learning Paths (0):
None
Practice Paths (2):
Contributions
Problems Authored (0)
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Problems Tested (0)
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Editorials Contributed (0)
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