arif khan

• Username: 2★tarif
• Country:  India
• Student/Professional:Professional
• Organisation:Zoho Corporation Chennai
• 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: 14

Current Ratings Graph Old Ratings Graph

1409 (-10)RatingProvisional
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August Challenge 2020 Division 2(2020-08-17 15:00:02)

Global Rank:   15869

Cheated in:   

Ratings System Update

(2020-08-17 15:00:02)

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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1409 (-44)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   15869

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)

Practice Paths (2)

Prefix Sum Problems

14%

Practice for ZCO and INOI

2%

Contests (14)

December Challenge 2015

Chef and the stones

December Cook-Off 2015

Chef and Subarrays

December Lunchtime 2015

Distinct Codes

January Long Challenge 2016

Chef and Time Machine

March Challenge 2016

Palindromic substrings

June Challenge 2016

Devu and an Array

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Chef and digits of a number, Faded Palindromes

December Challenge 2016

Train Partner

July Challenge 2018 Division 2

Strike or Spare

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess

Total Problems Solved: 183