_Sam

• Username: 7★hzhz
• Country:  China
• Student/Professional:Student
• Institution:Zhenhai 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: 8

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April Challenge 2019 Division 1(2019-04-15 15:00:00)

Global Rank:   4

Cheated in:   

Ratings System Update

(2019-04-15 15:00:00)

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2654 (-39)RatingProvisional
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April Challenge 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   4

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 (8)

March Challenge 2018 DIV 2

Chef and Easy Problem, Pishty and Triangles, Minion Chef and Bananas, Minions and Voting, Mix the Colors, A Big Sale, Chef and Glove

April Challenge 2018 Division 2

Cutting Plants, Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers

August Challenge 2018 Division 2

Spell Bob, Sheokand and Number, Lonely Cycles, Problem Sort, Modular GCD, Coordinate Compression , Princess and Dragons

September Challenge 2018 Division 1

War of XORs, Bad Shuffle, Table Game, Chef and Adventures, Factorize, Chef and Condition Zero (Challenge), Chef and Lost Story, Magician versus Chef, Sasha and Photos, Selinas the Chefs Falling on the Tree, AND Square Subsegments

December Challenge 2018 Division 1

Chef and Interactive XOR, Edge Addition, Directing Edges, Max and Electrical Panel, (Challenge) Delete DAG, Before Having Donuts, Colorblind Feast

October Challenge 2018 Division 1

Walk on Tree, Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard, (Challenge) Chef and Takonemo, Coprime Components, Distinct Rows in Submatrices

March Challenge 2019 Division 1

Yet Again a Subarray Problem, (Challenge) Interleaving Strings, Matchable Permutations, Treasure Hunt, Sonya and Tree, Cheating on Queue, Chef and Soccer, Perfect Tree Problem

April Challenge 2019 Division 1

Maximum Remaining, Sonya and Queries, Moving Rectangles (Challenge), Edgy, Fencing, Subtree Removal, Friend or Girlfriend, Playing with Numbers, Mininum XOR over Tree, Kira Loves Palindromes, Offer for Chef

April Long One 2022 Division 1 (Unrated)

Dazzling AXNODR Challenge , Pairwise Xors

January Long 2023 Division 1 (Unrated)

Minimize the Maximum

Total Problems Solved: 158