Ashley Khoo

Practice: 

Kingdom Unity, Sorting, 3-Palindromes, Lowest Common Ancestor, Primitive Queries, Bitsetbaba and Power Grid, To Infinity and Beyond, Base Plans, XOR-ed Palindromes, A Special Tree, Binary Game, Hackerman, Intersection Matrix, Magical Coins, Graph Count, Min-Max Rotations, Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Beautiful Permutation, Erase All But One, Unbalanced Reversals, Plus Xor Increase, Anti-knapsack, Increase to Zero, Inversions Retrieval, Maximal Prefix After Flip

September Challenge 2019 Division 2: 

Easy Fibonacci, Chef and Good Subsequences, Chef and Interesting Subsequences , Chef Designed a Network

October Lunchtime 2019 Division 2: 

Counting Inversions Again!, Counting Inversions Revisited, Box Game, Khaled in HIT

UWCOI 2020 (Rated for all): 

Button Pairs, Base Plans, Peak Finding, Blocks, Mercury Poisoning, Escape

December Lunchtime 2020 Division 1 (Unrated): 

Even Sequence, Three Letters, One Zero Swaps

UWCOI 2021 (Rated for all): 

Binary Puzzle, Hidden Numbers, Efficient Delivery, City Mapping 2, Organisation, Array Swaps

Clash Wildcard: 

Good Pairs, Nobita and Boxes, Oliver, Money Heist, Special Permutation

March Lunchtime 2021 Division 1: 

Node Codon, Gamer, Lunchtime, Uniform

June Cook-Off 2021 Division 1: 

Binary String on Steroids, Battle Royale, Polynomial Root

SnackDown 2021 - Online Qualifiers: 

Minimise Difference, Maximum Number Of Distinct Elements, Lucky Number

SnackDown 2021 - Online Round 1A: 

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Lazy Machine, Min Max LCM

SnackDown 2021 - Online Pre-Elimination: 

Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers, Mega mu - 1

Infinity 2k21 Division 1 (Unrated): 

Dalgona Treat, From Your GGANBU, Red Light, Green Light, Hopscotch, Tug of War, The Squid Game, Ddakji, Marbles, Escape Plan

May Cook-Off 2022 Division 1 (Rated): 

Split Powers Of 2, Different Subarrays Rearrange, Triple Inversions

June Lunchtime 2022 Division 1 (Rated): 

XOR Times 2 Is Sum, Increase to Zero, SPLIT With XOR Not X, XOR, The Detective, Minimum Xor On Segment, Max Shift After XOR, The Lost Array

July Lunchtime 2022 Division 1 (Rated): 

Tree Interval Queries, Inversions Retrieval, Binary String Happiness, Consecutive XOR, Largest Family

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