Ajay Kumar

• Username: 4★kross9924
• Country:  India
• Student/Professional:Student
• Institution:Delhi Technological University New Delhi, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 16

Current Ratings Graph Old Ratings Graph

1972 (+8)RatingProvisional
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March Lunchtime 2022 Division 1(2022-03-19 23:00:00)

Global Rank:   179

Cheated in:   

Ratings System Update

(2022-03-19 23:00:00)

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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1972 (-136)RatingProvisional
Rating i Provisional Rating, click to know more

March Lunchtime 2022 Division 1(2022-12-20 00:00:00)

Global Rank:   179

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 (16)

November Challenge 2019 Division 2

Weapon Value

April Challenge 2020 Division 2

COVID Pandemic and Long Queue

May Challenge 2020 Division 2

Isolation Centers, Coronavirus Spread

January Cook-Off 2021 Division 2

Prime Tuples, Maximise Islands

January Lunchtime 2021 Division 2 (Unrated)

Dreams of Divisibility, Binary Subsequence, Even Differences, Even Sum

January Challenge 2021 Division 3

Chef and Ants, Watching CPL, Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

February Challenge 2021 Division 2

Maximise Function, Frog Sort, Team Name

March Challenge 2021 Division 2

Interesting XOR!, College Life 4, Consecutive Adding, Paparazzi Gennady, Space Arrays, Wireless Electricity (Challenge), Maximum Topological Sort

March Lunchtime 2021 Division 2

Dinner by Candlelight, Lunchtime, Racing

April Lunchtime 2021 Division 2

Chef in Heaven , Bench Press, Array Rotation

April CodeChef Starters 2021 Division 2 (Unrated)

Chef On Island

May Lunchtime 2021 Division 2

Total Components, Tom And Jerry 1, Charges

May Challenge 2021 Division 2 (Rated)

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

June Lunchtime 2021 Division 2

From Rational to Binary, False Number, Unpleasant Ones

August Challenge 2021 Division 2 (Unrated)

Olympics Ranking

August Cook-Off 2021 Division 2

Equal Difference, Clear the Array, Different String, Odd Array, Chef and Closure

CodeChef Starters 9 Division 2 (Unrated)

Bus full of passengers

CodeChef Starters 10 Division 2 (Rated)

Magical Flips, Maximise the Subsequence Sum, Remove One Element

CodeChef Starters 11 Division 2 (Rated)

Obtain the Sum, The Grid Fill Problem, Positive Spewing

March Long One 2022, Division 1 (Unrated)

Substring of a Substring, Exact Marks

CodeChef Starters 30 Division 1 (Unrated)

Minimum Coloring, Gift Shop and Coupon, Balanced Reversals

March Lunchtime 2022 Division 1

Winter, Adjacency Love, Separate Them All

Total Problems Solved: 87