zhupeijun

• Username: 4★zhupeijun
• Country:  China
• Student/Professional:Professional
• Organisation:Tokyo
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

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No. of Contests Participated: 21

Current Ratings Graph Old Ratings Graph

1946 (-8)RatingProvisional
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March Challenge 2021 Division 2(2021-03-15 15:00:02)

Global Rank:   921

Cheated in:   

Ratings System Update

(2021-03-15 15:00:02)

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1946 (+58)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   921

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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Practice Paths (0)

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Contests (21)

June Challenge 2014

Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password, Maxim and Progressions

July Challenge 2014

Little Elephant and Painting, Garden Game, Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner

August Challenge 2014

Chef and Reversing, Chef and Gift, The Leaking Robot

September Challenge 2014

Factorisation, Chef and Rainbow Array - 2, Chef and Left-Right, Fun with Rotation

October Challenge 2014

Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Segment Game, Let us construct palindrome, Distinct Characters Subsequence, Chef and Red Black Tree

December Challenge 2014

XOR with Subset, Chef and Apple Trees

January Challenge 2015

Gcd Queries, One Dimensional Kingdoms, Sereja and Votes, Chef and Stones, Chef and A Large Permutation, Sereja and Number Division 2, Queries on the String

February Challenge 2015

Chef and Chain, Time to Study Graphs with Chef, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Xor Matrix, Jigsaw Puzzle Solving, Chef and Equality

March Challenge 2015

Matrix, Sign Wave, Chef and Notebooks, Devu and his Class, Count Substrings

May Challenge 2015

Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe

June Challenge 2015

Sereja and Matrix Division, Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Chef and String

July Challenge 2015

Bread, Chef and Cube, Na2a and lucky stone

December Challenge 2015

Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters, Chef and Girls

December Challenge 2016

Train Partner

September Challenge 2017

Little Chef and Sums, Minimum Good Permutation, Chef and Pick Digit

October Challenge 2017

Chef and a great voluntary Program, Chef and Cycled Cycles, Max Mex, Counter Test For CHEFSUM, A Balanced Contest

January Challenge 2018

K-Concatenation, Maximum Score, Rectangle, Partition the numbers

April Challenge 2018 Division 2

Highway Crossing, Workers, Average of Pairs, Count Good Prefixes, Weight of Numbers, Chef and Array (Challenge)

May Challenge 2018 Division 1

Change the Signs, Fake Binary Search, Dibs on Fibs

March Challenge 2021 Division 2

Interesting XOR!, College Life 4, Paparazzi Gennady, Space Arrays, Maximum Topological Sort

Total Problems Solved: 107