codeforces11

• Username: 6★codeforces11
• Country:  Taiwan
• Student/Professional:Student
• Institution:National Taiwan University
• 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: 12

Current Ratings Graph Old Ratings Graph

2378 (+217)RatingProvisional
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Starters 154 (Rated till 6 stars)(2024-10-02 22:00:00)

Global Rank:   4

Cheated in:   

Ratings System Update

(2024-10-02 22:00:00)

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1971 (-80)RatingProvisional
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Starters 50 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   2

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 (12)

June Challenge 2021 Division 3 (Rated)

Summer Heat

September Challenge 2021 Division 3 (Rated)

XOR Equal, Shuffling Parities, 2-D Point Meeting, Airline Restrictions, Travel Pass

CodeChef Starters 11 Division 3 (Rated)

Positive Spewing, ATM Queue, The Grid Fill Problem, Find the Direction, Obtain the Sum, The Two Dishes

CodeChef Starters 14 Division 2 (Unrated)

Diagonal movement, FIXFIX, Task Times, Odd GCD

September Lunchtime 2021 Division 2

Balanced and Unique Arrays, Yet another SOD problem

CodeChef Starters 28 Division 2 (Rated)

Travelling in the Graph, Permutation Xority, Interactive Tree, Count the Holidays, Interactive Tree 2

Starters 35 Division 2 (Rated)

Jump to Sibling, Dark Light, Admins and Shopping

Starters 50 Division 2 (Rated)

Air Blimp, Average Permutation, Add Subtract Equalize, Beautiful Array, Permutation GCD, Sum Product Segments

Starters 149 (Rated)

Easy Subarray Sum, Maximise Sum, Chef Loves Beautiful Strings (Easy Version)

Starters 151 (rated)

RGB Grid (Easy), RGB Grid (Medium), Shooting (Easy), Convert string, Sequence Search, RGB Grid (Hard), Shooting (Hard), Ball Game

Starters 153 (Rated till 5 stars)

Another Game, Colorful Tree (Easy Version), Xometry (Easy Version), Xometry (Hard Version)

Starters 154 (Rated till 6 stars)

Min Max Paths, Tree Cut Xor, Count Winning Subarrays, GCD and XOR, Triangle Count (Hard), Triangle Count (Easy)

Total Problems Solved: 76