Rishav Kumar

• Username: 5★rishav_iitkgp
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kharagpur West Bengal, 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

2001 (+37)RatingProvisional
Rating i Provisional Rating, click to know more

December Challenge 2020 Division 1(2020-12-14 15:00:00)

Global Rank:   91

Cheated in:   

Ratings System Update

(2020-12-14 15:00:00)

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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2001 (-119)RatingProvisional
Rating i Provisional Rating, click to know more

December Challenge 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   91

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)

February Challenge 2020 Division 2

The Theatre Problem, No Change Required, Long Contest and Cook Off Overlaps, School of Geometry, Hard Cash

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Ready Bitwise, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

May Challenge 2020 Division 1

(Challenge) Nanobots, Isolation Centers, Chef and Bitwise Product, Sorting Vases, Triple Sort, Coronavirus Spread

January Cook-Off 2020 Division 2

Chef Chick, Exam Cheating

February Cook-Off 2020 Division 2

XOR Game, Penalty Shoot-Out II, Tax Slabs

March Cook-Off 2020 Division 2

Box of Chocolates, Find Your Gift

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food

February Lunchtime 2020 Division 2

At the Gates, Not All Flavours

March Lunchtime 2020 Division 2 (Unrated)

Chef Swaps Digits, Good Prefix

April Lunchtime 2020 Division 2

Chef in Fantasy League, Positive Mex, Another Birthday Present!

International Coding Marathon (Rated for all)

Lavanya Loves DFA, Mr Pr in a Dilemma

UWCOI 2020 (Rated for all)

Button Pairs, Find maximum in an Array

June Challenge 2020 Division 1

The Tom and Jerry Game!, Operations on a Tuple, Convenient Airports, Covid Sampling (Challenge)

July Challenge 2020 Division 1

Chefina and Swaps, Doctor Chef, Missing a Point, Chef and Dragon Dens

August Challenge 2020 Division 1

Insanely Hard School Exams, Subsequence Frequency Counting, Smallest KMP, Chef and Wedding Arrangements

September Challenge 2020 Division 1

Chefina and Swap, Ada Matrix, Find XOR, Chef and Trump Cards

November Challenge 2020 Division 1

Restore Sequence, Magical Candy Store

December Challenge 2020 Division 1

Hail XOR, Square Root of LCA Convolution, Calculus, String Operations, Positive Prefixes, Even Pair Sum

October Lunchtime 2020 Division 1

Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Cute Chef Gift

November Lunchtime 2020 Division 1

Gasoline

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian

Total Problems Solved: 249