Sung An
- sungan
North Korea- Other
- No Active Plan. View Details
Activity Heat Map
Learning Paths (2)
Practice Paths (3)
Contests (5)
November Lunchtime 2020 Division 2
Gasoline Introduction, Xor Compare, Gasoline
November Challenge 2021 Division 2 (Unrated)
Flip or Compress, Functional Array, Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper, Maximise the bridges, Convex Hulk
December Challenge 2021 Division 2 (Unrated)
Increasing String , Yet Another Tree Problem, Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists, Min Manhattan Distance, Squares Counting
January Long 2022 - I, Division 2 (Unrated)
Sequence Master, Generating Cycles, Prime in a binary string, Retrieve back the Array, Chef and Riffles
January Long 2022 - II, Division 2 (Unrated)
Array Partition, Power Sum, Tree Master, Sum and OR, Crying Colours
February Long 2022 - I, Division 2 (Unrated)
Random OR, Digit Multiplication By K, Binary Base Basics, Bitwise Blend, Remove Adjacent, N Queens Puzzle Solved !
February Long 2022 - II, Division 2 (Unrated)
Avoid Fixed Points, Sequence GCD, Area Sums in Convex Polygons, Bitwise swaps, Xor Palindrome
March Long One 2022, Division 2 (Unrated)
Akash and Function, Subarray XOR, Substring of a Substring, Count the Ones, Exact Marks, MEX on Trees
March Long Two 2022, Division 2 (Unrated)
Minimum Longest Substring, Missing Numbers, Same Parity Swaps in Binary Strings, Kostomuksha and AESC MSU, Perfect Imperfections 2
April Long Two 2022 Division 2 (Unrated)
Geometric Mean Inequality, Antipodal Points, Akash and Equal Mean, Flip to Invert, Chef And Division, Pseudo Sorted Array
June Long One 2022 Division 2 (Unrated)
Full Path Eraser, Expected move, Reduce to zero, Add By Permutation, Divisible by i , Possible GCD, Alternate Additions, Equal Strings
June Long Two 2022 Division 2 (Unrated)
Counting Is Fun, 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, Find A, B, C, Slow Solution
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
August Long 2022 Division 2 (Unrated)
Angled Flip, XOR with smallest element, Hello Equation, Two Trains, Crazy Subsequences
September Long 2022 Division 2 (Unrated)
Yet Another Chef And Numbers, Distinct Numbers, Pokemon Battles, Alone Alice!, Interesting Subarray, Good Pairs
Starters 80 Division 2 (Rated)
Permutation Subsequence, Three-People Contests, c8kbf and Tree, Prefix Permutation, Eat Rock!, Matrix Pain, Equal Elements
Starters 88 Division 1 (Rated till 6 Stars)
Maximum And Or, Chef and Asteroids, Good Operations, Minimize the Bits, Chef and Good Array
Starters 90 Division 1 (Rated till 6 Stars)
Chef And Partytions, Crushed Apples and a Balance Scale, Minimum Ugliness, Sum of Goodness, Finding Sum, Printing Binary Array, Anti Palindrome
Starters 100 Division 1 (Rated)
Prime Permutation, Stamps 100, Concussive Sequence, Combinatorics Is Fun, Interesting Swap, Ant
Starters 101 Division 1 (Unrated)
Minimize Xor Difference, Split and ADD, Snakes on a Grid, Partially Increasing Array Queries, Warrior Chef
September Short 2023 Division 1 (Unrated)
GCD Discount, Ultimate Fencing, Lucky Seven, Slow Start, Mixing Extraordinaire
Starters 156 (Rated till 6 stars)
Balance Difficulties, Partition Score