zhongzihao

• Username: 6★zhongzihao
• Country:  China
• Student/Professional:Student
• Institution:Beihang University Beijing, 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: 9

Current Ratings Graph Old Ratings Graph

2490 (+34)RatingProvisional
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April Challenge 2021 Division 1(2021-04-12 15:00:00)

Global Rank:   11

Cheated in:   

Ratings System Update

(2021-04-12 15:00:00)

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2490 (+11)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2021 Division 1(2022-12-20 00:00:00)

Global Rank:   11

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 (9)

September Challenge 2017

Chef and Pick Digit, Minimum Good Permutation, Weasel does Xor on Tree, Fill The Matrix, Little Chef and Sums, Sereja and Commands

July Challenge 2020 Division 2

Chef and Dragon Dens, Chef and Strings, Chef and Card Game, Doctor Chef, Missing a Point, Chefina and Swaps, LCM Constraints, Ada King

September Challenge 2020 Division 1

Find XOR, Ada Matrix, Divide Candies, Move the Coins - Creating Tests, Chef and Sums, Chef and Trump Cards, Chefina and Swap

October Challenge 2020 Division 1

Inversions, Positive AND, Random Knapsack, Replace for X, D-Dimensional MST, Compress all Subsegments, Adding Squares

January Challenge 2021 Division 1

Blackjack, And-Or Game, Sequence Creation, Expected Number of SCCs, Chef and Ants, Curious Matrix, Cool Subsets, Guess the Tiling

December Challenge 2020 Division 1

Hail XOR, Square Root of LCA Convolution, Calculus, Linear Combination, Permutations, String Operations, Positive Prefixes, Even Pair Sum

February Challenge 2021 Division 1

Bash Matrix, Cell Shell, XOR Sums, Prime Game, Another Tree with Number Theory, Team Name, Multiple Games

March Challenge 2021 Division 1

Random Walk Queries, Maximum Topological Sort, Locked Safe, Space Arrays, Substring Probability, Paparazzi Gennady, Consecutive Adding, Dense Graph

April Challenge 2021 Division 1

Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Pair Flips, String Power, Chef and Dice, Boolean Game

Total Problems Solved: 75