kefan_dong

• Username: 6★kfdong
• Country:  China
• Student/Professional:Student
• Institution:Fuzhou No.1 High School China
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 14

Current Ratings Graph Old Ratings Graph

2440 (+51)RatingProvisional
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May Challenge 2016(2016-05-16 15:00:00)

Global Rank:   16

Cheated in:   

Ratings System Update

(2016-05-16 15:00:00)

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2440 (-10)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2016(2022-12-20 00:00:00)

Global Rank:   16

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 (14)

November Challenge 2013

Yet Another Cute Girl, Superpowers of 2, Missing some chairs, Square Digit Squares, Sereja and Vectors, Uncle Johny

December Challenge 2013

Cube Cakes, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries

January Challenge 2014

Please like me, Chef and Feedback, Bon Appetit, Meteor, Sereja and Graph, Counting The Important Pairs

February Challenge 2014

Little Elephant and Movies, Draughts, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array

March Challenge 2014

Team Split, Chef and Graph Queries, A Story with Strings, Mike and Stamps, Maximum number, GCD condition, Walk, Binary Tournament, Little Chef and Numbers

May Challenge 2014

Stone, Chef and Strange Matrix, Chef-jumping, Compilers and Parsers, Little Elephant and Balloons

June Challenge 2014

Little Elephant and Blocks, Chef and Functions, Chef and Subarray, Two Companies

October Challenge 2014

DevuLand, Dinosaurs and Laddus, Magical Girl and Colored Liquid Potions, Stringology is Magic, Children Trips, Chef and Painting, Chef and Ground, Sereja and two strings, Remy paints the fence, Chef and Square

November Lunchtime 2014

A wolf, a sheep and cabbage, Deja Vu, Dividing the Students

June Challenge 2015

Anticommutative implication, Chef and String, Another Fibonacci, Chef and Polygons, Chef and Memory Limit, Chef and His Friend, Steady tables

August Challenge 2015

Way Out, Social Cluster, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia, Chef and Path

September Challenge 2015

Chain of Doughnuts, Cracking the Code, Lighthouses, Count Steps in Matrix, Nikitosh and xor, Bank robbery

February Challenge 2016

Sereja and Permutations, Call Center Schedule, Matrix Maximum Sum, Chef-Detective, Rectangles of Love, Weird Sum, Devu and a light discussion, Chef and Strange Operations, Sereja and Two Lines

May Challenge 2016

Sereja and GCD 2, Easy Queries, Chef and math, Chef and Balls, Forest Gathering, Chef and Amazingness of Numbers, Chef and Big Soccer, Laddu, Roads in Stars

Total Problems Solved: 140