kdu_6

Rookie League

• Username: 6★kdu_6
• Country:  North Korea
• Student/Professional:Other
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

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No. of Contests Participated: 23

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Starters 228 (Rated till 6 star)(2026-03-04 22:00:00)

Global Rank:   17

Cheated in:   

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

Global Rank:   16

Cheated in:   

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

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Contests (23)

November Long 2022 Division 4 (Rated)

MaxEdges, Split and Maximize, Spliting Balls, Time Complexity, Water Mixing, String Game

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, c8kbf and Tree, Prefix Permutation, Equal Elements

Starters 85 Division 2 (Rated)

Crazy Bishops on Chessboard, Efficient PAN Linking, Inside The Stadium

Starters 89 Division 2 (Rated)

Plus 2 or Minus 1, Positive or Negative Subarrays, Subarray Removal

Starters 90 Division 2 (Rated)

Crushed Apples and a Balance Scale, Printing Binary Array, Anti Palindrome

Starters 96 Division 2 (Rated)

Swap the numbers, Remove Stones, Zero Array, Mex Array, Remove Multiples, Absolute Differences

Starters 97 Division 2 (Rated)

Make It Special, Schrodinger Smiley, No Palindrome, Triplets Min

Starters 98 Division 2 (Rated)

3-Blast Palindrome, Happiness , Airport Management, Build Towers, Ball Distribution

Starters 131 Division 1 (Rated till 5 Stars)

ABC Conjecture 2, K-Closeness, Digit Space, Encrypt Value, T-Perm

Starters 144 Division 1 (Rated)

Largest K

Starters 169 (Rated)

No Palindromes, Constant Subsequence, Hamming equivalent, Make K Most Frequent, Tree Queries

Starters 172 (Rated till 5 stars)

Transform String, AndOr, Forgotten Permutation, Binary Trisection, Tactical Removal

Starters 174 (Rated upto 2700)

GCD Add Size, Meximal Sum, Mystic Slimes, Graph Monsters

Starters 175 (Rated till 5 stars)

The Skip Game

Starters 180 (Rated till 6 star)

Random Input Problem, Balls and Boxes, Shall we play a game, Huh, Easy, Counting Problem

Starters 183 (Rated till 6 star)

Swap Permutation 1, Swap Permutation 2, Pivotal Reversal, Arbitrary Shuffling, Complete MST, S to T

Starters 193 (Rated for all)

Add Permutation

Starters 197 (Rated till 6 star)

Split

Starters 199 (Rated till 5 star)

Perfect Ranges, Replace with Coefficients, Fence Colouring, Grid MEX, XOR Game

Starters 201 (Rated till 6 star)

Compare and Connect, Permutation Cost Sum, Huge Grid (Hard Version), Tuple Slimes, Huge Grid (Easy Version), Delete Maximum

Starters 206 (Rated till 5 star)

Cyclic Shift Minimization, MEX Tree, Product Equal Sum, Min Steps, Gladiator Fighting

Starters 208 (Rated till 6 star)

GCND

Starters 212 (Rated till 6 star)

Interesting Binary (Easy Version), Binary Flip

Starters 226 (Rated till 5 star)

At least One, Good Subarrays, Max Minus Min, Minimum Distinct , Array Graph

Starters 228 (Rated till 6 star)

Prefix Max Xor, Unique Sum 1, Minimize Error, Min And Operations, Max And Operations

Total Problems Solved: 117