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• Username: 4★wjy1998
• Student/Professional:Student
• Institution:Fuzhou No.1 High School China
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 13

Current Ratings Graph Old Ratings Graph

1998 (-13)RatingProvisional
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December Challenge 2014(2014-12-15 17:00:00)

Global Rank:   930

Cheated in:   

Ratings System Update

(2014-12-15 17:00:00)

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1998 (+127)RatingProvisional
Rating i Provisional Rating, click to know more

December Challenge 2014(2022-12-20 00:00:00)

Global Rank:   930

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 (13)

November Challenge 2013

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

December Challenge 2013

Magic Pairs, Rectangular Queries, Reign, Funny Marbles, Chef and Codes, Cube Cakes, Art in Digital Age

January Challenge 2014

Sereja and Graph, Bon Appetit, Please like me, Chef and Feedback

February Challenge 2014

Make It Zero, Make It Zero 2, Colored Array, Little Elephant and Subarrays, Longest Common Pattern, Make Him Happy

March Challenge 2014

Sereja and Sorting 2, Team Split, Binary Tournament, Walk, Little Chef and Numbers, Mike and Stamps, Chef and Graph Queries

April Challenge 2014

Shortest Path in Binary Trees, Divide the Tangerine, Chef and Digits, Counting Matrices, Sereja and Permutation, Farmer Feb

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Chef and Functions, Chef and Digit Jumps, Chef and Subarray, Two Companies, Guessing Game, Forgot Password

July Challenge 2014

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

September Challenge 2014

Rectangle Query, Flooring, Fun with Rotation, Chef and sequence, Chef and Left-Right, Chef and Swaps, Chef and Rainbow Array - 2, Sereja and Bubble Sort, Factorisation

November Challenge 2014

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

December Challenge 2014

Kali and Devtas, XOR with Subset, Chef and Apple Trees

Total Problems Solved: 67