Jakub Tarnawski

• Username: 7★dj3500
• Student/Professional:Professional
• Organisation:Microsoft
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

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No. of Contests Participated: 29

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January Cook-Off 2018(2018-01-22 00:00:00)

Global Rank:   1

Cheated in:   

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(2018-01-22 00:00:00)

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2683 (-97)RatingProvisional
Rating i Provisional Rating, click to know more

January Cook-Off 2018(2022-12-20 00:00:00)

Global Rank:   1

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 (29)

The January 2011 Cook-Off

Holes in the text, Chef team, Whole submatrix

February Cook - Off Challenge

Integer Sequences, Breaking Into Atoms, Three Way Communications

March Cook-off Challenge

Money Transformation, Snake Snaky

May Cook-off 2011

Popular Rice Recipe, Packing the Golden Triangles, Distribute idlis Equally

June Cook-off

Correctness of Knight Move, Super-plane

July Cook-off 2011

Misinterpretation, Garden Squares, Pleasing Chief

September Cook-off

Last Digit Sum, Digit Rotation, Hotel Bytelandia

November Cook-Off

Moving Coins, Subanagrams, Graph on a Plane

December Cook-Off

Ciel and New Menu, Ciel and A-B Problem, Ciel and Battle Arena

January Cook-Off

Collision in Space, Makx Sum, Moving between Floors

February 2012 Challenge

Box and Ball System, Lucky Count, Restore the Recipe, Lucky Long, Word Counting, Count of Maximum

February 2012 Cook-off

Daily Train, Equation Solver

March Cook-Off 2012

Ciel Numbers I, Ciel Numbers II

April Cook-Off 2012

Selection for Training Camps, Top Batsmen, Crease Painting, Resistance

May Cook-Off 2012

Little Elephant and Balance, Little Elephant and Swapping, Little Elephant and Strings

August Cook-Off 2012

Codechef Password Recovery, Forced Output, Code Crazy Minions, Asmany Number Verification

October Challenge 2012

Team Formation, Little Elephant and Order, Fierce Battles, Event Organizer, Blade Master, The New Scheme, Need More Diamonds

October Cook-Off 2012

Buying Sweets, Equalization, Tennis Tournament, Tree Fun

November Challenge 2012

Lucky Balance, A Wonderful Chocolate, Delicious Dishes, Candy Collecting Game, Coin Flip, Jam Board, Martial Arts, Many Left, Sridhar Likes Travelling, Arithmetic Progressions

December Cook-Off 2012

Expected Greatest Common Divisor, Root of the Problem, Packaging Cupcakes, Reversing directions

February Cook-Off 2013

Lack of Logic, Row and Column Operations

March Cook-off 2013

The Ball And Cups, Palindrome, Level Of Difference

May Cook-off 2013

Subtraction Game 1, Subtraction Game 2, Sequence Transmission

September Cook-Off 2013

Strange Matrix, Game, Code

October Cook-Off 2013

Polo the Penguin and the Lucky String, Polo the Penguin and the Numbers, Polo the Penguin and the Test, Polo the Penguin and the XOR, Polo the Penguin and the Tree

February Cook-Off 2014

Chef and Remissness, Chef and Kingship, Chef of The Ancient, Chef and Uniqueness, Chef and Reunion

July Cook-Off 2014

Copy-Paste, Present for Andrii, Sum Queries, Friends

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2, Updating Edges on Trees

January Cook-Off 2018

Multiple of 3, Make array great again, Finding the matrix, Survive in ChocoLand

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

Total Problems Solved: 149