Rishubh Singh

• Username: 3★dexter.rishubh
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Delhi 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: 48

Current Ratings Graph Old Ratings Graph

1716 (+43)RatingProvisional
Rating i Provisional Rating, click to know more

December Cook-Off 2018 Division 2(2018-12-24 00:00:02)

Global Rank:   104

Cheated in:   

Ratings System Update

(2018-12-24 00:00:02)

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?

1716 (-123)RatingProvisional
Rating i Provisional Rating, click to know more

December Cook-Off 2018 Division 2(2022-12-20 00:00:00)

Global Rank:   104

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)

None

Practice Paths (0)

None

Contests (48)

October Challenge 2014

DevuLand, Dinosaurs and Laddus, Chef and Ground

November Challenge 2014

Distinct Characters Subsequence

December Challenge 2014

Chef and Apple Trees

January Challenge 2015

Sereja and Votes, Gcd Queries, Chef and Stones

January Cook-Off 2015

Suraj goes shopping

February Challenge 2015

Chef and Chain, Let us play with rank list, Chef and Equality

March Challenge 2015

Chef and Notebooks, Sign Wave

April Challenge 2015

Chef and Interview, Chef and Piano Scales, Broken Telephone

May Challenge 2015

Chef and new recipe

June Challenge 2015

Chef and Memory Limit

July Challenge 2015

Bread, Na2a and lucky stone, Chef and Cube

August Challenge 2015

Aditi and Magic Trick, Cooking Machine, Way Out, Gravity Guy

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres

December Challenge 2015

Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence

February Cook-Off 2015

Fit Squares in Triangle

March Cook-Off 2015

How to Minimize a String

April Cook-Off 2015

Version Control System

May Cook-Off 2015

Devu and friendship testing, Devu and decorating birthday cake

July Cook-Off 2015

Cops and the Thief Devu, Maximize Disjoint Pair Sum

August Cook-Off 2015

Chef and the Wildcard Matching

September Mega Cook-Off 2015

Forgotten Language

August Lunchtime 2015

Minimum Maximum

January Long Challenge 2016

Rupsa and the Game

February Challenge 2016

Chef-Detective

April Challenge 2016

Chef And Coloring

May Challenge 2016

Laddu, Chef and Balls

June Challenge 2016

Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array

July Challenge 2016

Andrash and Stipendium, Chefland and Electricity

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Chef and digits of a number, Faded Palindromes

November Challenge 2016

Count Permutations, Chef and squares, Task for Alexey

December Challenge 2016

Train Partner

April Cook-Off 2016

Movie Weekend, Odd Divisors

July Lunchtime 2016

Drumpf for President!

November Lunchtime 2016

Chef and his Students

January Challenge 2017

Cats and Dogs

February Challenge 2017

Chef and His Apartment Dues

September Challenge 2017

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

October Challenge 2017

Max Mex, Counter Test For CHEFSUM, A Balanced Contest

September Cook-Off 2017

Statistics Construction, Subsequence Equality

October Mega Cook-Off 2018 Division 2

Ada and the Staircase, Pumping Water, Binary Nim 2

December Cook-Off 2018 Division 2

Camp Or Not

September Challenge 2018 Division 2

Magician versus Chef, War of XORs, Chef and Adventures

December Challenge 2018 Division 1

Max and Electrical Panel

November Challenge 2018 Division 1

Appy Loves One

October Challenge 2018 Division 2

Appy and Balloons , Chef and Serves, Byte to Bit

Total Problems Solved: 147