Ego Xu

• Username: 6★x_o_r3
• Student/Professional:Student
• Institution:University of Chinese Academy of Science
• 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: 9

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August Challenge 2019 Division 1(2019-08-12 15:00:00)

Global Rank:   11

Cheated in:   

Ratings System Update

(2019-08-12 15:00:00)

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2414 (-205)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   11

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 (9)

August Challenge 2018 Division 2

Modular GCD, Problem Sort, Lonely Cycles, Sheokand and Number, Spell Bob, Coordinate Compression

December Challenge 2018 Division 1

Directing Edges, Chef and Interactive XOR, Max and Electrical Panel, Colorblind Feast, (Challenge) Delete DAG, Before Having Donuts

November Challenge 2018 Division 1

Appy Loves One, Good Median, Chef, Primes and Trees (Challenge), Magician versus Chef 2, Binary Strings

October Challenge 2018 Division 2

Appy and Balloons , Chef and Circles, Byte to Bit, Chef and Serves, Chef and Surprise Chessboard, Minimize Digitsum, Beautiful Bricks

January Challenge 2019 Division 1

Yet Another Problem About Sequences, Different Neighbours, Partition the Graph, Distinct Pairs, Party, A Pizza Slice

February Challenge 2019 Division 1

Maximize the Tax, Guess It Right, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Xor Decomposition, Chef and Secret Ingredients, Manhattan Rectangle, Yet Another Tree Problem

May Challenge 2019 Division 1

Ada Rooks 2, Trees and Degrees, Where to Build the Roads, Sonya and Gifts, Ada Pawns

July Challenge 2019 Division 1

Maximum and Minimum, Circular Merging, LOVEMUFFIN, Codechef War, Guess the Prime!, Snake and Apple Tree, Hit the Coconuts

August Challenge 2019 Division 1

Guddu and his Mother, Encoding, Tree Sequences, Dilemma, Maximize an Expression, Chef and Gordon Ramsay, Complement Spanning Trees, (Challenge) Bacteria Synthesis

August Challenge 2021 Division 1 (Unrated)

Geometry 1

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

April Long One 2022 Division 1 (Unrated)

Min Max Equality

Total Problems Solved: 119