Ayush Kumar Singh

• Username: 4★astroash
• Country:  India
• Student/Professional:Student
• Institution:Netaji Subhas University of Technology Dwarka, Delhi, India
• 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: 26

Current Ratings Graph Old Ratings Graph

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December Lunchtime 2021 Division 1(2021-12-25 23:00:00)

Global Rank:   210

Cheated in:   

Ratings System Update

(2021-12-25 23:00:00)

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1906 (-126)RatingProvisional
Rating i Provisional Rating, click to know more

December Lunchtime 2021 Division 1(2022-12-20 00:00:00)

Global Rank:   210

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 (26)

December Challenge 2018 Division 2

Chef and An Ideal Problem, Chef and Interactive Contests

June Challenge 2019 Division 2

Guddu on a Date

July Challenge 2019 Division 2

Chef and Mean

September Challenge 2019 Division 2

Easy Fibonacci, Chef Designed a Network

October Challenge 2019 Division 2

Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices

November Challenge 2019 Division 2

Hard Sequence, A Simple Game, Weapon Value

December Challenge 2019 Division 2

Plus Multiply, That Is My Score!

December Lunchtime 2019 Division 2

Check Algorithm

February Challenge 2020 Division 2

School of Geometry

March Challenge 2020 Division 2

Pintu and Fruits, XOR Engine, Ada Bishop 2

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers, Triple Sort

March Cook-Off 2020 Division 2

Find Your Gift, Box of Chocolates

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests

May Cook-Off 2020 Division 2

Chef and Recipe

March Lunchtime 2020 Division 2 (Unrated)

Chef Swaps Digits, Good Prefix

April Lunchtime 2020 Division 2

Chef in Fantasy League, Another Birthday Present!

June Challenge 2020 Division 2

Even Matrix, Chef and Price Control, Chef and String, Covid Sampling (Challenge), Chef and Icecream, The Tom and Jerry Game!

July Challenge 2020 Division 2

Ada King, Chefina and Swaps, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings

September Challenge 2020 Division 1

Chefina and Swap, Chef and Trump Cards, Find XOR, Ada Matrix

July Lunchtime 2020 Division 2

Chef and Steps, Maximum Candies

RECode 12.0 (Rated for all)

Chef and String, Chef and Numbers

January Challenge 2021 Division 2

Chef and Ants, Watching CPL, Fair Elections

January Cook-Off 2021 Division 2

Mex Subsequence, Prime Tuples, Maximise Islands

March Lunchtime 2021 Division 1

Uniform, Lunchtime

SnackDown 2021 - Online Qualifiers

Lucky Number

October Challenge 2021 Division 1 (Unrated)

Longest AND Subarray, MEX-OR

Code: Nium Challenge

Alphabet Difference, Divide Students Into Classes, Queries in an Array

December Lunchtime 2021 Division 1

Optimal Sorting, Romantic Reversals

January Long 2022 - I, Division 1 (Unrated)

Chef and Riffles

Total Problems Solved: 115