Sayan Das

• Username: 2★sn_128
• Country:  India
• Student/Professional:Student
• Institution:Academy of Technology Kolkata, West Bengal, 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: 54

Current Ratings Graph Old Ratings Graph

1522 (+33)RatingProvisional
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October Challenge 2021 Division 3 (Rated)(2021-10-11 15:00:00)

Global Rank:   81

Cheated in:   

Ratings System Update

(2021-10-11 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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1522 (-86)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2021 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   81

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 (54)

April Challenge 2016

Chef And Coloring

July Challenge 2016

Andrash and Stipendium

September Challenge 2016

Chef and digits of a number, Faded Palindromes

October Challenge 2016

Chef and Keyboard

December Challenge 2016

Train Partner

July Cook-Off 2016

Chef and Proportion

September Cook-Off 2016

Lazy Jem

October Cook-Off 2016

Watson asks Does Permutation Exist

March Challenge 2017

Xenny and Alternating Tasks, Bear and Extra Number

April Challenge 2017

Dish Of Life, Similar Dishes

May Challenge 2017

Chef and his daily routine, Courses in an university

July Challenge 2017

Chef and Sign Sequences, Whats in the Name

August Long Challenge 2017

Chef and Rainbow Array

September Challenge 2017

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

February Challenge 2018

Chef And His Characters, Chef And The Patents

March Challenge 2018 DIV 2

A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting

April Challenge 2018 Division 2

Workers

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again

June Challenge 2018 Division 2

Naive Chef

August Challenge 2018 Division 2

Sheokand and Number, Spell Bob

September Challenge 2018 Division 2

Magician versus Chef, Chef and Adventures

October Challenge 2018 Division 2

Chef and Serves, Byte to Bit

February Challenge 2019 Division 2

Chef and Secret Ingredients, Deputy Chef

March Challenge 2019 Division 2

Chef and Number Game

April Challenge 2019 Division 2

Friend or Girlfriend, Maximum Remaining

June Challenge 2019 Division 2

Chef and Proxy, Guddu on a Date

July Challenge 2019 Division 2

Parity Again, Chef and Mean

August Challenge 2019 Division 2

Dilemma, Football, Distribute Apples, Zombie and the Caves

September Challenge 2019 Division 2

Easy Fibonacci, Chef and Interesting Subsequences

November Challenge 2019 Division 2

Hard Sequence, Weapon Value

February Challenge 2020 Division 2

School of Geometry, Hard Cash

March Challenge 2020 Division 2

Pintu and Fruits

April Challenge 2020 Division 2

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

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, 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

Coders' Legacy (Rated for all)

Chef vs Doof

February Challenge 2021 Division 3

Chef and Meetings, Maximise Function, Highest Divisor

March Challenge 2021 Division 3

Interesting XOR!, Chef and Groups, No Time to Wait

April Challenge 2021 Division 3

Chef and Dice, Valid Pair, World Record, Strong Language

May Challenge 2021 Division 3 (Rated)

Xor Equality, Golf, Solubility

June Challenge 2021 Division 3 (Rated)

Summer Heat

August Challenge 2021 Division 3 (Rated)

Special Triplets, Array Filling, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

September Challenge 2021 Division 3 (Rated)

Shuffling Parities, Airline Restrictions, Travel Pass

October Challenge 2021 Division 3 (Rated)

Longest AND Subarray, Digit Removal, MEX-OR, Three Boxes, Which Mixture

Total Problems Solved: 126