Ayon Shahrier
- 7★serotonin
Bangladesh- Student
- University of Dhaka
- No Active Plan. View Details
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Ratings System Update
(2024-01-03 22:30:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Practice Paths (0)
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Contests (35)
February Challenge 2020 Division 1
Chef and Railway Stations, Expected Change, No Change Required, Long Contest and Cook Off Overlaps
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Factor Tree, Leaked Answers (Challenge)
May Challenge 2020 Division 1
Buying a New String, Triple Sort, Binary Land, Sorting Vases, Chef and Bitwise Product
January Cook-Off 2020 Division 2
Chef Chick, Exam Cheating, Profitable Paths, Range AND
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty
May Cook-Off 2020 Division 1
Chef, Chefina and Their Friendship, Chefina on a Trip, Roads in Chefland
January Lunchtime 2020 Division 2
Construct Array, Bob and His Friends, Chef and Street Food, Under the Tunnels, Folding Paper
March Lunchtime 2020 Division 1 (Unrated)
Maximize LCM, Strip in a Tree!
April Lunchtime 2020 Division 1
Triangle Query
May Lunchtime 2020 Division 1
Escape One, Convert the String, Tree difference
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction
August Cook-Off 2020 Division 1
Red-blue Trees, Polygon Relationship
June Lunchtime 2020 Division 1
Maximum AND, Gold Mining, Square Submatrices
RECode 12.0 (Rated for all)
Chef and String, Chef and Walk, Chef and Rotation, Chef and Subsequences, Chef and Numbers
December Cook-Off 2020 Division 1
Self-Destructing Strings, Sed Passwords, Circle of Chaos, Carry All Fruits
October Cook-Off 2020 Division 1
Path-etic Sums, The In-XOR-able Task, Yet Another Crossover Episode
UWCOI 2021 (Rated for all)
Organisation, Array Swaps, Efficient Delivery, Hidden Numbers
July Cook-Off 2021 Division 1
Beautiful Subsequence, Mod Equality, Hidden Colored Graph
September Cook-Off 2021 Division 1
Chef and Pairwise Distances, Half Sequence, Fake Swaps
SnackDown 2021 - Online Qualifiers
Prefix as a Substring 2, Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference
September Lunchtime 2021 Division 1
Interesting Representation, Subsequence LCS, Alice vs Bob Faceoff
October Cook-Off 2021 Division 1
Can You Reach The End, Find the Modulus, Chef Up, Permutation Sorting Game
SnackDown 2021 - Online Round 1A
Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
SnackDown 2021 - Online Pre-Elimination
Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers
SnackDown 2021 - Online Elimination Round (Rated for all)
Graduate Work Matters, Sorting Segments
July Cook-Off 2022 Division 1 (Rated)
Partition Queries, Segmentation Fault, Subsequence LCM
Starters 41 Division 1 (Unrated)
Equal Integers, Chef and Brain Speed, Chef and Chocolates, Black and White, Remove and Add, Is this priority or parity!, Path Parity, Parity Fun, Dearrange sorting, Determine the Winner
Starters 44 Division 1 (Unrated)
Palindromes Not Allowed, Alternating Strings, Atleast and Atmost, Dense Bracket Sequence
July Lunchtime 2022 Division 1 (Rated)
Tree Interval Queries, Inversions Retrieval, Tree Retrieval, Binary String Happiness, Consecutive XOR, Largest Family
Starters 50 Division 1 (Unrated)
Air Blimp, Permutation GCD, Beautiful Array, Sum Product Segments, Bad Tuples, Discount, Mileage matters, Add Subtract Equalize, Nearest Court, Average Permutation
Starters 51 Division 1 (Unrated)
Chef & Cook Game, Differentiation, Prefix Suffix And Or, Adjacent Xors, Split N, Copy and Paste, Final Population, Different Medians, TV Discount, Dominant Element
Starters 52 Division 1 (Unrated)
AI Analysing Code, Minimum Sum, WA Test Cases, Air Conditioner Temperature, K-Flip, Gritty Grid, Flipping Failure, Nil Xor
Starters 62 Division 1 (Rated for 5 & 6 stars)
Get the Segment, Strange BST, Joint XOR, Disjoint XOR, Sorted Substrings, Make Multiple, Pythagorean Pair
Starters 65 Division 1 (Rated for 5 & 6 stars)
Nahaane Jaa, Paisa Double, Binod, Gormint Aunty, Potato to Gold, Lazy Ancestors
Starters 71 Division 1 (Unrated)
Pet Store, Flip the Prefix, Unique Mode, Instagram, Snapchat, Expected Sum, Perfect Trio, Maximizing LCS, Smallest Difference
Starters 72 Division 1 (Rated till 5-Stars)
Indivisible, Apples and oranges, N Triplets, Good Sequence, Good Arrangement, Sum it, No sequence, Base or Bias, XOR Tree
Starters 73 Division 1 (Rated till 6-Stars)
Minimum OR Path, Find an integer, Consecutive Xor, First To Last, Hamiltonian Tree, Elevators
Starters 80 Division 1 (Rated till 5 stars)
Permutation Subsequence, Three-People Contests, c8kbf and Tree, Prefix Permutation, Eat Rock!
Starters 82 Division 1 (Rated till 6 stars)
Tree Game, Make Them Alike, Find eX, Difference Matrix
Starters 84 Division 1 (Rated till 6 Stars)
SUM OR, Max count of 1, Digit Operation, Chef And Adjacent Sums
Starters 85 Division 1 (Rated till 6 stars)
Crazy Bishops on Chessboard, Efficient PAN Linking, Tree Xor, GCD Queries, Bomb Blast, TripTastic
Starters 86 Division 1 (Rated for All)
Least Size, Minimum Operation, String Game , Largest Y
Starters 87 Division 1 (Rated till 6 Stars)
OR-XOR, Count the Permutations (always), Checkpoint, Inversions of subsequences, AB plus C, One or All
Starters 89 Division 1 (Rated till 5 Stars)
Positive or Negative Subarrays, Subarray Removal
Starters 100 Division 1 (Rated)
Prime Permutation, Stamps 100, Concussive Sequence, Ant
Starters 103 Division 1 (Rated till 6 Stars)
Cost Distribution, Squarified, X-Ray Grid, Chandelier, Unique xor, Divisible By 8
Starters 115 Division 1 (Rated)
Delete The Array, Subtraction Sequence I, Subtraction Sequence II, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero
Starters 119 Division 1 (Rated till 6-Stars)
K Odd Sum, Unalike Gcd & Lcm, Guess Who Delivers
Starters 125 Division 1 (Rated till 6-Stars)
Bucket Game, Operating on A, Binary Minimal
Starters 133 Division 1 (Rated till 6-Star)
ABC Conjecture 3, Powered Parameters, Too Far For Comfort, Fireworks, Too Far For Comfort (Easy Version)
Starters 138 Division 1 (Rated till 6-Stars)
A power B mod C , TRIPLE PRIMES, K Subarray Products, Prefix Suffix Inequality, Breezy Mode Problem, Distinct Substring