Ranjan Kumar

• Username: 2★touchstone7
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Information Technology, Allahabad Uttar Pradesh
• 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: 15

Current Ratings Graph Old Ratings Graph

1586 (-6)RatingProvisional
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May Cook-Off 2022 Division 2 (Rated)(2022-05-01 23:00:02)

Global Rank:   882

Cheated in:   

Ratings System Update

(2022-05-01 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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1586 (-67)RatingProvisional
Rating i Provisional Rating, click to know more

May Cook-Off 2022 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   882

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 (15)

August Long Challenge 2017

Chef and Rainbow Array

August Lunchtime 2017

Mathison and pangrams

August Challenge 2018 Division 2

Problem Sort, Sheokand and Number, Spell Bob

December Challenge 2018 Division 2

Chef and Interactive Contests, Chef and An Ideal Problem

September Lunchtime 2018 Division 2

Judging Delay

January Challenge 2019 Division 2

Distinct Pairs, Fancy Quotes

February Challenge 2019 Division 2

Manhattan Rectangle, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef

March Challenge 2019 Division 2

Chef got Recipes, Chef and a Beautiful Digit, Chef and Number Game

June Challenge 2019 Division 2

Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients

March Challenge 2020 Division 2

Pintu and Fruits

April Challenge 2020 Division 2

Sell All the Cars, COVID Pandemic and Long Queue

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests

May Cook-Off 2022 Division 2 (Rated)

Doubled Distances

Total Problems Solved: 32