redstar1984001
- 5★redstar1984001
North Korea- Student
- University of Sciences, D.P.R Korea
- No Active Plan. View Details
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(2026-08-05 22:00:00)Learning Paths (0)
Practice Paths (1)
Contests (17)
Starters 135 Division 4 (Rated)
Limit of MEX, Change A to B, Football Ties, RCB vs CSK , Invert And Equalize
Starters 136 Division 2 ( Rated )
Non-Zero XOR, My First Geometry Problem, Sum of Modes, Sum of Max K Subarray, Lexicographically Maximal Prefix AND, Game On Rectangle
Starters 137 Division 1 (Rated till 5-Stars)
Coprime Subarrays, Speedrun, Double Trouble, Unusual Queries
Starters 138 Division 1 (Rated till 6-Stars)
Cyclopian Edges, Distinct Substring, Breezy Mode Problem, Prefix Suffix Inequality, A power B mod C , TRIPLE PRIMES, K Subarray Products
Starters 146 Division 1 (Rated till 5 stars)
Back Front, Connect The Chains, Bouncing Ball, Permutation Construction, Binary Strings Yet Again
Starters 164 (Rated till 5 stars)
Halloween Array
Starters 193 (Rated for all)
Add Permutation
Starters 201 (Rated till 6 star)
Huge Grid (Easy Version)
Starters 203 (Rated till 5 star)
Maximum Score Subarray, Subsequences of Subsequences, MEX on Ranges, Set To Median, Maximum MST
Starters 208 (Rated till 6 star)
GCND
Starters 209 (Rated till 5 star)
High Score (Hard Version), High Score (Easy Version), Easy Grid Game, Tactical Conversion, Binary Love, Counting Is Fun
Starters 211 (Rated till 6 - star)
No Doubling
Starters 223 (Unrated)
Expansion
Starters 225 (Rated till 5 star)
Mega Mode, Near Yet Far (Hard), Near Yet Far, Prime Prefixes, Plus-Minus Split
Starters 227 (Rated till 5 star)
Twice Greater, Tree Sets, Top 2 Max, Equal Elements, Erase and Maximize
Starters 228 (Rated till 6 star)
Min And Operations
Starters 232 (Rated till 5 star)
Sortable Subarrays, Set Size, Alternating Sum, Max Size, Food Resources
Starters 233 (Rated till 6 star)
K Median
Starters 237 (Rated till 5 star)
Finding All, Avoiding M (Easy), Subset Min Max
Starters 244 (Rated till 5 star)
Tree Swapping (Easy), AND OR Conversion 1, AND OR Conversion 2, Dividing by 2
Starters 250 (Rated till 5 Star)
Subsequence 1, Subsequence 2, Shift and Add, Jumping Cost, Bishop Moves