Jaehyun Koo
- 6★gs14004
- koosaga
- South Korea
- Ildar Gainullin Fan Club
- Other
- List of teams by Jaehyun Koo
- No Active Plan. View Details
Activity Heat Map
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Ratings System Update
(2021-12-13 16:30:00)Ratings System Update
(2022-12-20 00:00:00)CodeChef Rating Distribution
Submissions
Practice Problems (45):
Practice:
Communicating Servers, Renting Spare Oven Time, Even Coefficients, Ski Resort, Minesweeper Reversed, Prime Distance On Tree, To Queue or not to Queue, Query on a tree VI, Chef and Graph Queries, Count Substrings, Course Selection, Chef and Problems, Random Number Generator, Matrix, 3D Queries, Counting on a directed graph, Special Economic Zone, Simple Queries, Easy Queries, Dai Ma Chu Shi, Range Modulus, Fusing Weapons , Virus Attack, Subtree swapping, Forever, Long Sandwich , Waiting in a Queue, Ancestors in Two Trees, Chef and Pairs, Game Revisited, Mex division, Robots in a DAG, Hull Sum, Year 3017, BiCycles, Tom and Jerry, Chef at the River, Walk on Tree, Beautiful Bricks, K-th Lexicographical Suffix, Army of Me, Good Subsequences, Egg-free DAG, Palindromic Equivalence, Sorter Prodigy
Contests (73):
February Challenge 2016:
Sereja and Two Lines, Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective, Matrix Maximum Sum, Sereja and Permutations
November Challenge 2017:
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
December Challenge 2018 Division 1:
Chef and Interactive XOR, Directing Edges, Max and Electrical Panel
October Challenge 2018 Division 1:
Appy and Balloons , Minimize Digitsum, Chef and Surprise Chessboard
October Challenge 2019 Division 1:
Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Fun with Lists, Array Modification, Faulty System
November Challenge 2019 Division 1:
Physical Exercise, From Zero to Infinity, A Simple Game, Single Point of Failure, D-Dart
May Challenge 2020 Division 2:
Precise Bipartite Pairing, Isolation Centers, Coronavirus Spread, Chef and Bitwise Product, Precise Pairing, Not a Real World Problem
May Cook-Off 2020 Division 1:
Chef, Chefina and Their Friendship, Chefland Squads and the Army Chief, Chefina on a Trip, Roads in Chefland
October Challenge 2020 Division 1:
Inversions, Positive AND, Random Knapsack, Rooted Minimum Spanning Tree, Replace for X, D-Dimensional MST, Compress all Subsegments, Adding Squares
SnackDown 2021 - Online Round 1A:
Round Robin Ranks , Dance Moves, Min Max LCM, Yet Another Flipping Problem
SnackDown 2021 - Online Pre-Elimination:
Mega mu - 1, Guests like slippers, Product Pain, Good ranking, Non-Decreasing Subsequence of size K
SnackDown 2021 - Online Elimination Round (Rated for all):
One Change Subsequences, Random Convex Hull, Graduate Work Matters, Sorting Segments, Sorter Prodigy
Learning Paths (0):
None
Practice Paths (0):
None
Contributions
Problems Authored (0)
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Problems Tested (0)
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Editorials Contributed (0)
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