kdu_2

• Username: 5★kdu_2
• Country:  North Korea
• Student/Professional:Other
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 19

Current Ratings Graph Old Ratings Graph

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Starters 212 (Rated till 6 star)(2025-11-12 22:00:00)

Global Rank:   34

Cheated in:   

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November Long 2022 Division 4 (Rated)(2022-12-20 00:00:00)

Global Rank:   1

Cheated in:   

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(2022-12-20 00:00:00)

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Learning Paths (3)

Machine Learning

14%

Operating System

5%

Time complexity

28%

Practice Paths (1)

Infosys InfyTQ - Questions

1%

Contests (19)

November Long 2022 Division 4 (Rated)

Minimize swaps, MaxEdges, String Game, Water Mixing, Time Complexity, Spliting Balls, Alice and the Array, Split and Maximize

December Long 2022 Division 2 (Unrated)

Counting Subsequences, Not Divisible, Break into Powers, Sum of Cube , Divisible by A_i, Gcd of Subarrays, Maximise XOR

Starters 80 Division 2 (Rated)

Permutation Subsequence, Equal Elements, Matrix Pain, Prefix Permutation, c8kbf and Tree

Starters 85 Division 1 (Rated till 6 stars)

Crazy Bishops on Chessboard, Efficient PAN Linking

Starters 86 Division 2 (Rated)

Maximise Score, Largest Y, Minimum Operation

Starters 88 Division 1 (Rated till 6 Stars)

Maximum And Or, Chef and Asteroids, Minimize the Bits, Chef and Good Array

Starters 118 Division 1 (Rated till 5-Stars)

Is it uniquely decodable, Xorry 1, Xorry 2, Join States, Count Substrings, Water buckets

Starters 119 Division 1 (Rated till 6-Stars)

K Odd Sum, The Electrifying Problem, Unalike Gcd & Lcm, Luxury Inflation

Starters 123 Division 1 (Rated till 6-Stars)

Minimum And Maximum II, Trial of the Conqueror, Making Stars, Yet Another Alice Bob Game, Minimum And Maximum I

Starters 129 Division 1 (Rated till 5-Stars)

Palindromic Substrings, Red Blue Decomposition, ConstructXor, SumXor

Starters 136 Division 1 ( Rated till 6-Stars )

Who Makes P1, Even Sum Subarray, Non-Zero XOR, Sum of Modes, Sum of Max K Subarray, Lexicographically Maximal Prefix AND, Game On Rectangle

Starters 144 Division 1 (Rated)

Largest K

Starters 180 (Rated till 6 star)

Huh, Easy

Starters 185 (Rated till 5 star)

Double Shuffle, GCD Summation, Asymmetric Cookies, Double Shuffle (Hard), Array Deletion Game, Range Maximum Deconstruction (Easy)

Starters 197 (Rated till 6 star)

Good Ranking (Pair)

Starters 203 (Rated)

Set To Median, Maximum MST, Cab Rides, MEX on Ranges

Starters 205 (Rated till 6 star)

Unreachable

Starters 206 (Rated)

Cyclic Shift Minimization, Min Steps, Gladiator Fighting, Prime Sum

Starters 207 (Rated)

Subset MEX Counting, Maximum Smaller, Make Subarray, Adjacent Sums

Starters 210 (Rated till 5-star)

Delete Sorted Subsequence, Min Modular Subarray, Make All, First Element Counting

Starters 212 (Rated till 6 star)

Interesting Binary (Easy Version), Distinct Fun, Counting MEX Is Fun, Binary Flip

Total Problems Solved: 140