Nabil Jahan Khan

• Username: 3★nabiljkhan
• Country:  India
• Student/Professional:Student
• Institution:Jalpaiguri Government Engineering College West Bengal, India
• 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: 17

Current Ratings Graph Old Ratings Graph

1712 (+10)RatingProvisional
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CodeChef Starters 24 Division 2 (Rated)(2022-02-02 23:00:02)

Global Rank:   1991

Cheated in:   

Ratings System Update

(2022-02-02 23:00:02)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1712 (-87)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 24 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1991

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 (1)

Learn C++

12%

Practice Paths (1)

Practice for ZCO and INOI

1%

Contests (17)

July Challenge 2021 Division 3 (Rated)

Relativity, Maximum Production

August Challenge 2021 Division 3 (Rated)

Chef and Bulb Invention, Problem Difficulties, Olympics Ranking, Special Triplets

August Cook-Off 2021 Division 3

Equal Difference, Which Division

August Lunchtime 2021 Division 3

K-th Maximum, Maximum Length Even Subarray, Programming Languages

CodeChef Starters 8 Division 3 (Rated)

Penalty Shots

CodeChef Starters 9 Division 3 (Rated)

Black cells in a chessboard, Large Square, Bus full of passengers

CodeChef Starters 10 Division 3 (Rated)

Maximise the Subsequence Sum, Odd Repeat, Hardest Problem Bet

September Challenge 2021 Division 3 (Rated)

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

CodeChef Starters 11 Division 2 (Rated)

Positive Spewing, The Grid Fill Problem, Obtain the Sum

CodeChef Starters 13 Division 2 (Rated)

Chef in Vaccination Queue, Maximum Light Up, Magical Doors

CodeChef Starters 19 Division 3 (Rated)

Distinct Elements, Sleepy Chef, Chef and Contest, Indivisible Permutation

November Lunchtime 2021 Division 3

Minimum Number of Pizzas, Chef and Stock Prices

December Challenge 2021 Division 3 (Rated)

Check Mate, Valleys and Hills, List of Lists, Utkarsh and Placement tests

December Lunchtime 2021 Division 2

Maximum Trio, Optimal Sorting, Romantic Reversals

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, ChefWM, And Or Union

January Long 2022 - I, Division 2 (Unrated)

Prime in a binary string, Covid Spread, Keplers Law

January Long 2022 - II, Division 2 (Unrated)

Crying Colours, TCS Examination, Chef and Fixed Deposits

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem

March Long One 2022, Division 2 (Unrated)

Akash and Function, Akash and Missing Class, Exact Marks, Discus Throw, Bath in Winters, Wordle

Total Problems Solved: 179