Rishi Protim Bose

• Username: 3★rishi301296
• Country:  India
• Student/Professional:Professional
• Organisation:HackerEarth
• 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: 44

Current Ratings Graph Old Ratings Graph

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January Cook-Off 2021 Division 2(2021-01-25 00:30:02)

Global Rank:   1413

Cheated in:   

Ratings System Update

(2021-01-25 00:30:02)

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January Cook-Off 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   1413

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 (44)

September Challenge 2016

Chef and digits of a number, Faded Palindromes

October Challenge 2016

Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs

November Challenge 2016

Count Permutations, Chef and squares, Task for Alexey

December Challenge 2016

Train Partner

December Cook-Off 2016

Chef and Subset

November Lunchtime 2016

Chef and his Students

January Challenge 2017

Capital Movement, Cats and Dogs, Reservior

February Challenge 2017

Chef and Triangles, Chef and His Apartment Dues, Most Frequent Element, Gerrymander

March Challenge 2017

Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

February Cook-Off 2017

Download file

April Challenge 2017

Dish Of Life, Bear and Row 01, Similar Dishes

May Challenge 2017

Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

June Challenge 2017

A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

July Challenge 2017

Chef and Sign Sequences, Tree Expectancy, Whats in the Name, Calculator , IPC Trainers

August Long Challenge 2017

Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates

September Challenge 2017

Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums

October Challenge 2017

Chef and a great voluntary Program, Max Mex, Counter Test For CHEFSUM, A Balanced Contest

December Challenge 2017

Total Diamonds, Chef And his Cake

September Cook-Off 2017

Statistics Construction, Subsequence Equality

June Lunchtime 2017

Maximum Unique Segment, Two Numbers

August Lunchtime 2017

Mathison and the Dynamo shuffle, Mathison and pangrams

February Challenge 2018

Permutation and Palindrome

June Cook-Off 2018 Division 2

Archi and Comparsion, Good Permutations

July Challenge 2018 Division 2

Reach Equilibrium, No Minimum No Maximum, Magic Set, Strike or Spare

August Challenge 2018 Division 1

Modular GCD

September Challenge 2018 Division 1

Bad Shuffle

February Challenge 2020 Division 2

No Change Required, The Theatre Problem, 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

January Cook-Off 2020 Division 2

Chef Chick

UWCOI 2020 (Rated for all)

Button Pairs, Find maximum in an Array

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control

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, Chef and Wedding Arrangements

August Cook-Off 2020 Division 2

Chef and Work

October Challenge 2020 Division 2

Positive AND, Replace for X, Covid Run, Chef and Easy Queries

January Cook-Off 2021 Division 2

Prime Tuples

October Lunchtime 2020 Division 2

AND Plus OR

January Challenge 2021 Division 3

Watching CPL, Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

May CodeChef Starters 2021 Division 2 (Unrated)

Lazy Chef

June Challenge 2021 Division 2 (Unrated)

Bella ciao, Summer Heat

Total Problems Solved: 155