Nguyen Danh Lan

• Username: 4★tezk
• Country:  France
• Student/Professional:Student
• Institution:Institut national des sciences Appliquées de Lyon
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 7

Current Ratings Graph Old Ratings Graph

1880 (+82)RatingProvisional
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Starters 85 Division 2 (Rated)(2023-04-12 22:15:02)

Global Rank:   119

Cheated in:   

Ratings System Update

(2023-04-12 22:15:02)

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1798 (-27)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 35 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1073

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)

October Challenge 2021 Division 3 (Rated)

Digit Removal, MEX-OR, Three Boxes, Which Mixture, Longest AND Subarray

October Lunchtime 2021 Division 3

Alternating Work Days, Exactly N plus 1 Values, Fixed Points, Problem Category

November Challenge 2021 Division 3 (Rated)

Equal Coins, Maximise the bridges, Which Fuel is Cheaper, Hill Sequence, Weird Palindrome Making, Xor Equation, Flip or Compress

December Challenge 2021 Division 2 (Unrated)

Valleys and Hills, List of Lists

SnackDown 2021 - Elimination Parallel (Rated for Div 2)

Yet another subarray problem, Remove Element, Sorting Segments

Starters 35 Division 2 (Rated)

Dark Light, Admins and Shopping

Starters 85 Division 2 (Rated)

Crazy Bishops on Chessboard, Efficient PAN Linking, Inside The Stadium, TripTastic

Total Problems Solved: 78