Sobi Jain

• Username: 3★sobijain_m31
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology BHU Varanasi, Uttar Pradesh, 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: 25

Current Ratings Graph Old Ratings Graph

1620 (-29)RatingProvisional
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CodeChef Starters 10 Division 2 (Rated)(2021-08-29 19:00:02)

Global Rank:   2790

Cheated in:   

Ratings System Update

(2021-08-29 19:00:02)

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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1620 (-77)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 10 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   2790

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 (25)

December Challenge 2019 Division 2

That Is My Score!, Plus Multiply

January Challenge 2020 Division 2

Doraemon, Equality, Breaking Bricks, Chef and Dynamo

April Challenge 2020 Division 2

Strange Number, Sell All the Cars, COVID Pandemic and Long Queue

May Cook-Off 2020 Division 2

Roads in Chefland, Chef and Recipe

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food

May Lunchtime 2020 Division 2

Weird Walk, Lost Weekends

International Coding Marathon (Rated for all)

Lavanya Loves DFA

June Challenge 2020 Division 2

The Tom and Jerry Game!, Chef and Price Control, Chef and String, Chef and Icecream, Even Matrix

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

August Challenge 2020 Division 2

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

September Challenge 2020 Division 2

Coronavirus Spread 2, Ada Matrix, Find XOR, A Problem on Sticks, Chef and Trump Cards, Chefina and Swap

July Lunchtime 2020 Division 2

Chef and Steps

June Cook-Off 2020 Division 2

Cache Hits

June Lunchtime 2020 Division 2

Chef and Demonetisation, Increasing Decreasing

October Challenge 2020 Division 1

Positive AND

November Challenge 2020 Division 1

Restore Sequence

January Challenge 2021 Division 2

Fair Elections

December Challenge 2020 Division 1

Positive Prefixes, Even Pair Sum

September Cook-Off 2020 Division 2

Maximise Subsequence Value, Bowling Strategy

March Challenge 2021 Division 2

Interesting XOR!, Space Arrays

May Challenge 2021 Division 2 (Rated)

Xor Equality

July Challenge 2021 Division 3 (Rated)

XxOoRr, Chef vs Bharat, Optimal Denomination, Maximum Production, Relativity

July Cook-Off 2021 Division 2

XOR-ORED

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

CodeChef Starters 10 Division 2 (Rated)

Maximise the Subsequence Sum

CodeChef Starters 14 Division 2 (Unrated)

Odd GCD, Diagonal movement, FIXFIX

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray, MEX-OR

Total Problems Solved: 84