Ri Sin Dong
- 5★rns_rsd
North Korea- Student
- No Active Plan. View Details
Submissions Heat Map
Rating Graph
Ratings System Update
(2026-03-04 22:00:00)Learning Paths (4)
Practice Paths (6)
Python Interview Questions
Microsoft Coding Interview Questions
React Interview Questions
Data Structures Interview Questions
Maxlinear Coding Interview Questions
Dynamic programming
Contests (12)
Starters 170 (Rated)
Access Code Equality, qUiRkY qUesTs (Easy), Monster Monster, Minimum Bottles, Crazy Jumping Frogs
Starters 171 (Rated)
Swish Game, White Wall, Volcanic Eruption
Starters 177 (Rated)
Sum By OR, 2 Boxes, Triangle Checking, Ordered Distances, Counting 01 and 10, Flip or Reverse, Blocks on a Tree
Starters 178 (Rated)
Big Difference, Minimum Colours (Hard), Reduce to Palindrome, Placing 01 And 10, Minimum Colours (Easy), Count Disjoint Arrays, Smoothly Increasing
Starters 184 (Rated till 5 star)
Second MEX, Subtree XOR Counting, Adjacent OR, Front or Back, Double or Append
Starters 187 (Rated till 6 star)
OR What, Distinct Representations
Starters 195 (Rated till 5 star)
String Deletions, Game (Hard), Game (Easy), Count the Functions, Bugged Robot
Starters 200 (Rated for all)
Permutation Counting (Easy), Lexicographic Matching, Minimum Set, Evading Robot, Restrict Palindromes
Starters 208 (Rated till 6 star)
XOR Sorting, Positive-Negative, GCND, Median Subsets (Prefix), Cycle and Add
Starters 213 (Rated till 5 star)
Chef and String, Maximum Product Walk, Separation, Mean Difference (Easy)
Starters 222 (Rated till 6 star)
Ascents and Descents, Sell Upto 2, Sorting Prefixes
Starters 223 (Unrated)
Add to First
Starters 224 (Rated till 6 star)
Accommodation
Starters 225 (Rated till 5 star)
Plus-Minus Split, Prime Prefixes, Near Yet Far, Mega Mode
Starters 228 (Rated till 6 star)
Min And Operations