Yisong Wang

• Username: 7★wangyisong1996
• Student/Professional:Student
• Institution:Hangzhou Xuejun High School Hangzhou, Zhejiang, 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: 7

Current Ratings Graph Old Ratings Graph

2552 (+123)RatingProvisional
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March Challenge 2015(2015-03-16 15:00:00)

Global Rank:   9

Cheated in:   

Ratings System Update

(2015-03-16 15:00:00)

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2552 (+37)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2015(2022-12-20 00:00:00)

Global Rank:   9

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 (7)

May Challenge 2014

Dynamic Trees and Queries, Compilers and Parsers, Stone, Chef-jumping, Chef and Strange Matrix

June Challenge 2014

Little Elephant and Blocks, Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, DARTS501, Chef and Subarray, Sereja and Arcs, Two Companies, Guessing Game, Forgot Password

July Challenge 2014

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

September Challenge 2014

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

November Challenge 2014

Chef and Churu, The Spelling Problem, Let us construct palindrome, Chef and Red Black Tree, Distinct Characters Subsequence, Sereja and Order, Fombinatorial, Chef and Words, Chef and Segment Game, Sereja and Permutations

June Lunchtime 2014

Coprime Triples, The Smallest Pair, Dynamic Inversion

March Challenge 2015

Counting on a Tree, Matrix, Sign Wave, Devu and his Class, Random Number Generator, Sereja and Random Array, Chef and Problems, Chef and Notebooks, Count Substrings

Total Problems Solved: 57