cjy

• Username: 7★cjy2003
• Country:  China
• Student/Professional:Student
• Institution:High School Affiliated to Xi'an Jiaotong University Xi'an, China
• 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: 13

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2604 (+28)RatingProvisional
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June Challenge 2020 Division 1(2020-06-15 15:00:00)

Global Rank:   11

Cheated in:   

Ratings System Update

(2020-06-15 15:00:00)

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2604 (+64)RatingProvisional
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June Challenge 2020 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 (13)

June Challenge 2019 Division 2

Chef and Proxy, Lent Money, Guddu on a Date, Chef and Ingredients, Intersecting Paths, Sum and GCD, Road Signs

July Challenge 2019 Division 2

Chef and Mean , Minimum and Maximum, Circular Merging, Codechef War, Parity Again, Guess the Prime!, 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

September Challenge 2019 Division 1

Easy Fibonacci, Chef and Interesting Subsequences , Chef Designed a Network, Power Sum, Dodgers, Expected GCD, Fuzzy Linear Combinations, Biladerim Icin, Chef and Good Subsequences, Doofish Set

October Challenge 2019 Division 1

Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Array Modification

November Challenge 2019 Division 1

Physical Exercise, Winning Ways, Single Point of Failure, A Simple Game, From Zero to Infinity, Smallest Beautiful Number

December Challenge 2019 Division 1

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

January Challenge 2020 Division 1

(Challenge) Building Anthills, Chefland Army, Army of Me, English, Chefina and Prefix Suffix Sums, Doofish Matrix, Doraemon, Chef and Dynamo

February Challenge 2020 Division 1

Chef and Railway Stations, Expected Change, No Change Required, Chef and Gordon Ramsay 2, (Challenge) Raisins, Long Contest and Cook Off Overlaps

March Challenge 2020 Division 1

Good Subsequences, Lasers Everywhere Alternative, Inverse of a Function, Winning Ways 2, Break, Chef and DAG, Lasers Everywhere

April Challenge 2020 Division 1

Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Factor Tree, A Leisurely Journey, Line Line Line Graph, Leaked Answers (Challenge)

May Challenge 2020 Division 1

Triple Sort, Chef and Bitwise Product, Chef and Rainbow Road, Not a Real World Problem, Sorting Vases, Binary Land, Buying a New String

June Challenge 2020 Division 1

The Tom and Jerry Game!, Operations on a Tuple, The Delicious Cake, Convenient Airports, Guessing Game, Perfect Partitions, Covid Sampling (Challenge), Danya and Different Values

Total Problems Solved: 102