Kien Vu

• Username: 7★lomzom
• Country:  Vietnam
• Student/Professional:Student
• Institution:National University of Singapore
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

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No. of Contests Participated: 22

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April Challenge 2021 Division 1(2021-04-12 15:00:00)

Global Rank:   8

Cheated in:   

Ratings System Update

(2021-04-12 15:00:00)

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April Challenge 2021 Division 1(2022-12-20 00:00:00)

Global Rank:   8

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

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Contests (22)

July Cook-Off 2018 Division 2

Encoding Message, OR Matrix, Chef and GCD Game

June Challenge 2018 Division 2

Two Flowers, Vision, Sheokand and String, Binary Shuffle, Naive Chef

August Challenge 2018 Division 1

Coordinate Compression , Modular GCD

September Challenge 2018 Division 1

AND Square Subsegments, Sasha and Photos, Table Game, Bad Shuffle

December Challenge 2018 Division 1

(Challenge) Delete DAG, Colorblind Feast, Max and Electrical Panel, Directing Edges, Edge Addition, Chef and Interactive XOR

October Challenge 2018 Division 1

Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard

July Lunchtime 2018 Division 1

Prime divisors

February Challenge 2019 Division 1

Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Xor Decomposition, Yet Another Tree Problem, Art of Balance, Maximize the Tax

May Challenge 2019 Division 1

Ada Rooks 2, Where to Build the Roads

September Challenge 2019 Division 1

Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Dodgers, Power Sum, Chef Designed a Network

December Challenge 2019 Division 1

Chefina and Ranges, Binary XOR, Scoring Pairs, Sticky Notes, Addition

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

November Challenge 2020 Division 1

Chef and the Combination Lock, Restore Sequence, Magical Candy Store, Selecting Edges, Red-Black Boolean Expression, Scalar Product Tree, Unusual Queries

January Challenge 2021 Division 1

Cool Subsets, Curious Matrix, Chef and Ants, Guess the Tiling, Expected Number of SCCs, Blackjack, Sequence Creation, And-Or Game

December Challenge 2020 Division 1

Hail XOR, Square Root of LCA Convolution, Linear Combination, Permutations, String Operations, Positive Prefixes, Even Pair Sum

December Cook-Off 2020 Division 1

Mysterious Sequence, Self-Destructing Strings, Sed Passwords, Circle of Chaos, Carry All Fruits

January Cook-Off 2021 Division 1

Mex Subsequence, Not Too Colourful, Partition Ways, Prefix And

October Cook-Off 2020 Division 1

Path-etic Sums, An Inveractive Problem, The In-XOR-able Task, Yet Another Crossover Episode

October Lunchtime 2020 Division 1

Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Counting Spaghetti, Cute Chef Gift

November Lunchtime 2020 Division 1

Gasoline, Rook Path, Fractions

February Challenge 2021 Division 1

Team Name, Another Tree with Number Theory, Prime Game, Multiple Games, XOR Sums, Maximise Function, Bash Matrix, Cell Shell, Highest Divisor

March Challenge 2021 Division 1

Dense Graph, Consecutive Adding, Paparazzi Gennady, Space Arrays, Maximum Topological Sort

April Challenge 2021 Division 1

Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Pair Flips, String Power, Chef and Dice, Brahma and Shiva, Valid Pair, Boolean Game

May Challenge 2021 Division 1 (Unrated)

Valid Paths, Tree House, An Interesting Sequence, King Killing, Xor Equality, Tic Tac Toe, Modular Equation

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

Total Problems Solved: 160