Rishav Raj

• Username: 4★sebastian_
• Country:  India
• Student/Professional:Student
• Institution:Birla Institute of Technology Mesra Ranchi, Jharkhand, India
• 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: 22

Current Ratings Graph Old Ratings Graph

1897 (-21)RatingProvisional
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January Lunchtime 2022 Division 2(2022-01-29 23:00:02)

Global Rank:   1825

Cheated in:   

Ratings System Update

(2022-01-29 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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1897 (+66)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   1825

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 (22)

July Challenge 2019 Division 2

Minimum and Maximum, Parity Again, Chef and Mean

July Cook-Off 2019 Division 2

Playing with Strings

August Challenge 2019 Division 2

Dilemma, Football, Distribute Apples, Zombie and the Caves

September Challenge 2019 Division 2

Easy Fibonacci, Chef and Interesting Subsequences

October Challenge 2019 Division 2

Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices

January Challenge 2020 Division 2

Breaking Bricks

March Cook-Off 2020 Division 2

Find Your Gift

March Lunchtime 2020 Division 2 (Unrated)

Good Prefix

April Lunchtime 2020 Division 2

Another Birthday Present!, Chef in Fantasy League

May Lunchtime 2020 Division 2

Weird Walk, Convert the String, Lost Weekends

July Lunchtime 2020 Division 2

Chef and Steps

June Lunchtime 2020 Division 2

Chef and Demonetisation, Increasing Decreasing

RECode 12.0 (Rated for all)

Chef and String, Chef and Numbers

October Lunchtime 2020 Division 1

Cute Chef Gift

September Lunchtime 2020 Division 2

Watermelon, GCD operations, Root the Tree

Code Ensemble (Rated for Division 2)

Cherry and Bits, Priya and AND, Help Martha

International Coding Marathon 2021 Division 2 (Rated)

Suffix Sort, Infinite polygons, Lucky Boundaries

April Lunchtime 2021 Division 2

Chef in Heaven , Array Rotation, Bench Press

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1, Total Components, K-Subarrays

June Lunchtime 2021 Division 2

From Rational to Binary, Unpleasant Ones, False Number

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

SnackDown 2021 - Online Pre-Elimination

Product Pain

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros

Total Problems Solved: 226