Sourabh Singh

• Username: 2★air11
• 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 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 14

Current Ratings Graph Old Ratings Graph

1570 (+7)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2018 Division 2(2018-07-16 15:00:10)

Global Rank:   1947

Cheated in:   

Ratings System Update

(2018-07-16 15:00:10)

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?

1570 (+14)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2018 Division 2(2022-12-20 00:00:00)

Global Rank:   1947

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 (1)

Practice for ZCO and INOI

1%

Contests (14)

November Challenge 2013

Uncle Johny

December Challenge 2013

Magic Pairs

August Challenge 2014

The Leaking Robot, Chef and Gift

September Challenge 2014

Chef and Left-Right, Fun with Rotation

October Challenge 2014

Chef and Ground

August Lunchtime 2014

Harrenhal

June Challenge 2015

Chef and Memory Limit

July Challenge 2015

Chef and Cube, Na2a and lucky stone

October Challenge 2015

Who dares to be a millionaire

April Challenge 2016

Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring

November Challenge 2017

Chef goes Left Right Left, Villages and Tribes

July Challenge 2018 Division 2

Magic Set, Strike or Spare

Total Problems Solved: 67