Kevin Sun
- 7★ksun48
- Canada
- Student
- Massachusetts Institute of Technology Cambridge, Massachusetts, USA
- List of teams by Kevin Sun
- https://discuss.codechef.com/u/ksun48
- No Active Plan. View Details
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Ratings System Update
(2023-02-08 22:30:00)Ratings System Update
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(2016-08-22 00:00:00)Ratings System Update
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Submissions
Practice Problems (18):
Practice:
Factorial, Enormous Input Test, ATM, Life, the Universe, and Everything, Flipping Coins, Ciel and New Menu, Ciel and A-B Problem, Ciel Numbers II, Coin Flip, An Inveractive Problem, Ppeerrffeecctt Ssqquuaarreess, Maximum Tree Jumps, Min-Fund Country, Ticket Machine, Chef And Lost Array, Scrupulous Robbery Plan, Palindromes and Queries, Tree Interval Queries
Contests (287):
September Challenge 2015:
Filling the maze, Chain of Doughnuts, Count Steps in Matrix, Bank robbery, Lighthouses, Cracking the Code
August Cook-Off 2016:
Alice, Tweedle-Dee and Tweedle-Dum , Math Hatter, Mock Turtle, Queen of Hearts
May Cook-Off 2020 Division 1:
Chef, Chefina and Their Friendship, Chefland Squads and the Army Chief, Chefina on a Trip, Roads in Chefland, Curious Queries
July Cook-Off 2020 Division 1:
What Is This, a Crossover Episode, MEX-ception, The In-XOR-able Task, Even-tual Reduction, OR-thodox Distinction, Path-etic Products, I Hate Symbo-LIS-m, Chef and Modular Sequence
October Challenge 2020 Division 1:
Inversions, Positive AND, Random Knapsack, Rooted Minimum Spanning Tree, Replace for X, D-Dimensional MST, Compress all Subsegments, Adding Squares, Village Road Network
December Cook-Off 2020 Division 1 :
Mysterious Sequence, Self-Destructing Strings, Sed Passwords, On Graphs, Probability Theory and Cakes, Circle of Chaos, Carry All Fruits, Sweet Rectangles
January Cook-Off 2021 Division 1 :
Mex Subsequence, Not Too Colourful, Partition Ways, Prefix And, Common Ancestors, Equal Gifts
January Lunchtime 2021 Division 1 (Unrated):
Good Grid, Shifting Spoons, Dreams of Divisibility, Even Sum
October Cook-Off 2020 Division 1:
Path-etic Sums, The In-XOR-able Task, Isomorphic Morphism, Yet Another Crossover Episode
November Cook-Off 2020 Division 1:
Xor Counting, Flip the String, Chef and IPC Certificates, Graph Construction, Set Queries, Communication Channel, Hiring Workers
October Lunchtime 2020 Division 1:
Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Chef and Edge Flipping, Counting Spaghetti, Cute Chef Gift
September Lunchtime 2020 Division 1:
Permutation Split, Root the Tree, Robot Detector, Few Different Elements
April Cook-Off 2021 Division 1:
Array and Operations, Low Budget Sanitization, Tree Distances, OR of ANDs, Valet Parking, Deletion Sort
June Cook-Off 2021 Division 1:
Binary String on Steroids, Battle Royale, Polynomial Root, Random Permutation
June Lunchtime 2021 Division 1:
From Rational to Binary, Hidden Cell, Node Marking, Tic Tac Toe, Graph Count
July Cook-Off 2021 Division 1:
Beautiful Subsequence, Mod Equality, A Special Tree 2, Hidden Colored Graph, Make the Matrix Beautiful
August Cook-Off 2021 Division 1:
Odd Array, Different String, Chef 2 Chef, Interactive Equivalency, Clear the Array, Construct a String
August Lunchtime 2021 Division 1:
Bunny Hops, Min-Max Path, Just a Graph, Longest Spanning Substrings, ABCD, Chef and Deque
September Cook-Off 2021 Division 1:
Strange Queries, Chess Kings Chasing Game, Chef and Pairwise Distances, Permutation and GCD Set, Half Sequence, Fake Swaps
September Lunchtime 2021 Division 1:
Range Array, Interesting Representation, Subsequence LCS, Alice vs Bob Faceoff, Yet Another Shortest Path Problem, Maximizing Minimum Segment Sum
October Cook-Off 2021 Division 1:
Can You Reach The End, Second Player, 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, Mega mu - 1, Mega mu - 2, Guess the row
SnackDown 2021 - Online Elimination Round (Rated for all):
One Change Subsequences, Random Convex Hull, Graduate Work Matters, Sorting Segments, Sorter Prodigy
November Lunchtime 2021 Division 1:
Min-Fund Country, Min-Max Rotations, Ghost Chase, Permutation Pairs, Subarray Jumps
SnackDown 2021 - Final Round:
Ones Guessing, Equal Number of Prefix Maximums, Finally, Non Ad-Hoc Problem, AND of Maximums
December Cook-Off 2021 Division 1:
Binary String Game, Destructive Nim, Tree and Brilliant Array, RGB Construction, Break the Balance
December Lunchtime 2021 Division 1:
In-tree-active Node Coloring, Optimal Sorting, Counting manuls, Romantic Reversals, Sleep Technique , Point constraints
January Cook-Off 2022 Division 1:
Unreasonable Updates, Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Beautiful Permutation, Erase All But One
January Lunchtime 2022 Division 1:
Circular Permutation Recovery, Permutation XOR Sum, Permutation Deletion
February Cook-Off 2022 Division 1:
Mex Pairs, Xor Becoming Uncanny, Perfect Permutation, PerMEXuation , Mango Market, Slingshot
February Lunchtime 2022 Division 1:
Permutation Xor, Chef Cooks Permutation, Bracket Removal, Visit Them All, Magical Modulo, Magnet Sort
March Cook-Off 2022 Division 1:
Secret Tree, Powers of 2, Dragonado And XOR, Flippable Points, Oh I Dont Care, Alternating Divisibility
April Cook-Off 2022 Division 1:
Chef Goes Shopping, Sorted Distances, Distinct Integers, Sequence Cost, Max LCA Sum
May Cook-Off 2022 Division 1 (Rated):
Split Powers Of 2, Make Grid Comparable, Different Subarrays Rearrange, Triple Inversions
May Lunchtime 2022 Division 1 (Rated):
Balanced 0-1 Tree, Equal After And, Rearrange Ranges, Smallest Element In Progression
June Cook-Off 2022 Division 1 (Rated):
Permutation Segments, Throw and Take, Simple XOR, Place Balls Twice, Prefix Suffix Distinct, Split AND Sum, Max Minus Min
June Lunchtime 2022 Division 1 (Rated):
The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum, Minimum Xor On Segment, XOR, The Detective, SPLIT With XOR Not X, Increase to Zero
July Lunchtime 2022 Division 1 (Rated):
Tree Retrieval, Binary String Happiness, Consecutive XOR, Largest Family
August Lunchtime 2022 Division 1 (Rated):
Sort the Array, Tree Coloring, Subtract 12 Operation, Maximal Prefix After Flip, Mex On Subtrees, MEX Permutation Difference
September Lunchtime 2022 Division 1 (Rated) (Based on EJOI):
Increasing Addition, Remove Numbers, Adjacent Pairs, Where Is the Root, Longest Unfriendly Subsequence
February Cook-Off 2023 Division 1 (Rated):
Take Not Less, Alice Potter and OWL, Crazy Row, Alice Potter And Dumbledore Army
Learning Paths (0):
None
Practice Paths (2):
Contributions
Problems Authored (0)
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Problems Tested (0)
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Editorials Contributed (0)
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