![user profile](https://cdn.codechef.com/sites/all/themes/abessive/images/user_default_thumb.jpg)
Hakbin Yun
- 5★rns_yhb
North Korea
- Student
- Kim II-sung University
- No Active Plan. View Details
Activity Heat Map
Rating Graph
Ratings System Update
(2024-08-28 22:00:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (1)
Practice Paths (0)
None
Contests (9)
March Long One 2022, Division 4 (Rated)
Akash and Function, Subarray XOR, Substring of a Substring, Akash and Missing Class, Count the Ones, Exact Marks, MEX on Trees, Discus Throw, Bath in Winters, Wordle
April Long One 2022, Division 4 (Rated)
Yet Another Mex Problem, Dazzling GCD Pair, Prime Sum, Dazzling AXNODR Challenge , Bullets and Enemies, Ezio and Guards, Min Max Equality, The Cooler Dilemma 1, The Cooler Dilemma 2, Pairwise Xors
June Long One 2022 Division 3 (Rated)
Full Path Eraser, Expected move, Reduce to zero, Add By Permutation, Subscriptions, Divisible by i , Possible GCD, Alternate Additions, Equal Strings
June Long Two 2022 Division 2 (Unrated)
Counting Is Fun, Gcd and Lcm , Count the ACs, AP Grid, The Subarray XOR, Reversal Sorting, Strong Elements
July Long One 2022 Division 2 (Unrated)
Largest Square in the garden, Expected Difference, Journey of the Knight, Game of Piles Version 1, Game of Piles Version 2, Find A, B, C, Slow Solution
Starters 47 Division 2 (Rated)
Copy and Push Back, Similar Heights, End Sorted
Starters 48 Division 2 (Rated)
Strict Permutation, Fill The Grid, Make Palindrome 2, Accurate XOR
July Long Two 2022 Division 2 (Unrated)
Maximize Difference, Concat Sort, To Divide or Not To Divide, Sum of Product 1, Sum of Product 2, Similar Subsequence
Starters 50 Division 2 (Rated)
Air Blimp, Permutation GCD, Sum Product Segments, Average Permutation
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
January Long 2023 Division 1 (Unrated)
A Short Counting Problem, Swap Shift, Maximum of GCDs, Symmetric Swaps, Minimize the Maximum
August Long 2023 Division 1 (Unrated)
Codechef Copy, Spiritual Chef, All New CodeChef, Maximum Deliciousness, I Can Use Both Hands!
Starters 140 Division 1 (Rated till 5-Stars)
Lucky Matrix, Split Permutation, Trick Or Treat, Break The String, Tree Removal
Starters 149 (Rated till 5 stars)
Kill Monsters (Hard Version), Maximise Sum, Chef Loves Beautiful Strings (Easy Version)