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• Username: 4★a009
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Delhi India
• CodeChef Pro Plan: No Active Plan. View Details

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

Rating Graph

No. of Contests Participated: 17

Current Ratings Graph Old Ratings Graph

1919 (-48)RatingProvisional
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CodeChef Starters 10 Division 2 (Rated)(2021-08-29 19:00:02)

Global Rank:   2842

Cheated in:   

Ratings System Update

(2021-08-29 19:00:02)

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1919 (+173)RatingProvisional
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CodeChef Starters 10 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   2842

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 (17)

January Challenge 2021 Division 2

Guess the Tiling, Chef and Ants, Fair Elections, Expected Number of SCCs, Watching CPL

December Challenge 2020 Division 2

Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

January Cook-Off 2021 Division 2

Prime Tuples

January Lunchtime 2021 Division 2 (Unrated)

Binary Subsequence, Even Differences, Even Sum

UWCOI 2021 (Rated for all)

Hidden Numbers, Array Swaps

February Challenge 2021 Division 2

Frog Sort, Team Name, Another Tree with Number Theory, Chef and Meetings, Prime Game, Multiple Games, XOR Sums, Maximise Function, Highest Divisor

February Lunchtime 2021 Division 2

Average Sorting, Coprime Range, Palpal Strings

CodeChef Div 3 Rated Contest 2021 Division 2 (Unrated)

Rectangle, Chef and Patients, Body Mass Index, Total Score

February CodeChef Starters 2021 Division 2 (Unrated)

Maximum Value, College Life 2, Chef and Coupon

March Lunchtime 2021 Division 2

Lunchtime, Racing, Dinner by Candlelight

March CodeChef Starters 2021 Division 2 (Unrated)

Minimal Travel Time, College Life 5, Server Trouble, Nobel Prize, Possible Victory

April Challenge 2021 Division 2

Boolean Game, Strong Language, World Record, Valid Pair, Destroy the EMP Chip, Worthy Matrix, Binary String MEX, Chef and Dice

International Coding Marathon 2021 Division 2 (Rated)

Suffix Sort, Infinite polygons, Lucky Boundaries

April Cook-Off 2021 Division 2

OR of ANDs, Chocolate Monger

April Lunchtime 2021 Division 2

A Special Tree, Chef in Heaven , Bench Press, Array Rotation

SPYBITS IIT BHU Division 2 (Rated)

B - Valentine Couples, A - Save Water Save Life

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1, Total Components, K-Subarrays

May CodeChef Starters 2021 Division 2 (Unrated)

Cheating Time, Plagiarism, Lazy Chef, Correct Sentence

May Challenge 2021 Division 2 (Rated)

Modular Equation, Tree House, Tic Tac Toe, An Interesting Sequence, Valid Paths, Xor Equality

June Challenge 2021 Division 2 (Unrated)

Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat, Minimum Subtree Cover

August Cook-Off 2021 Division 2

Equal Difference, Chef and Closure, Different String

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

CodeChef Starters 10 Division 2 (Rated)

Maximise the Subsequence Sum

September Challenge 2021 Division 2 (Unrated)

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

Total Problems Solved: 171