Aditya Kumar

• Username: 4★adityasah09
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Delhi 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: 18

Current Ratings Graph Old Ratings Graph

1908 (-3)RatingProvisional
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Starters 93 Division 2 (Rated)(2023-06-07 22:00:02)

Global Rank:   708

Cheated in:   

Ratings System Update

(2023-06-07 22:00:02)

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1713 (-179)RatingProvisional
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CodeChef Starters 24 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   549

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 (18)

October Challenge 2020 Division 2

Replace for X, Covid Run, Chef and Easy Queries, Positive AND

November Challenge 2020 Division 2

Ada and Dishes

December Challenge 2020 Division 2

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

January Cook-Off 2021 Division 3

Distinct Pair Sums, Password

January Lunchtime 2021 Division 3 (Unrated)

Ashishgup and Interviews, Pair Me, Even Differences, Even Sum

February Challenge 2021 Division 3

Prime Game, Highest Divisor, Maximise Function, Chef and Meetings, Frog Sort

July Challenge 2021 Division 2 (Unrated)

XxOoRr, Optimal Denomination

August Challenge 2021 Division 2 (Unrated)

Problem Difficulties, Olympics Ranking

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Equal Beauty, Min Max LCM, Dance Moves, Round Robin Ranks

FizzBuzz Division 2 (Rated)

Magical Planks, Clean The Sequence, Substring Minimum Function, Can_Reach

November Lunchtime 2021 Division 2

Expected Weight

CodeChef Starters 24 Division 2 (Rated)

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

February Long 2022 - I, Division 2 (Unrated)

Binary Base Basics, N Queens Puzzle Solved !

May Long Two 2022 Division 2 (Unrated)

Xor Palindrome, Make them Zero

Starters 40 Division 2 (Unrated)

Infinity Staircase, Good Pairs

Starters 85 Division 2 (Rated)

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

Starters 86 Division 2 (Rated)

String Game , Largest Y, Maximise Score

Starters 87 Division 2 (Rated)

AB plus C, Inversions of subsequences, Existence

Starters 88 Division 2 (Rated)

Maximum And Or, Chef and Asteroids, Unstable Subarray

Starters 90 Division 2 (Rated)

Favourite Numbers, Anti Palindrome, Printing Binary Array, Learning SQL, Sum of Goodness, Crushed Apples and a Balance Scale

Starters 91 Division 2 (Rated)

Odd GCD Permutation, Chef Odd, Blobby Volley Scores, Maximum Sum Permutation

Starters 93 Division 2 (Rated)

Break Free, NASA, Problem

Total Problems Solved: 146