Hynek Davidek

• Username: 2★hynekdav
• Country:  Czech Republic
• Student/Professional:Student
• Institution:Czech Technical University, Prague
• 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: 68

Current Ratings Graph Old Ratings Graph

1407 (-35)RatingProvisional
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August Challenge 2020 Division 2(2020-08-17 15:00:02)

Global Rank:   26377

Cheated in:   

Ratings System Update

(2020-08-17 15:00:02)

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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1407 (+70)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   26377

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 (68)

April Challenge 2012

Double Strings

May Challenge 2012

Jewels and Stones

June Challenge 2012

Little Elephant and Candies, Arranging Cup-cakes

June Cook-Off 2012

Closing the Tweets

July Challenge 2012

Gift Rift

August Challenge 2012

Little Elephant and Bombs

September Challenge 2012

Racing Horses

October Challenge 2012

Fierce Battles

September Cook-Off 2012

Carvans

November Challenge 2012

Coin Flip

December Challenge 2012

Granama Recipes

December Cook-Off 2012

Reversing directions

January Challenge 2013

Chef of the Year, Three Different Numbers

February 2013 Challenge

Little Elephant and Cards, Buy1-Get1, Climbing Stairs

February Cook-Off 2013

Row and Column Operations

March Challenge 2013

Random decreasing function, Tourist Translations, Approximately, Fire Escape Routes, Minesweeper

March Cook-off 2013

The Ball And Cups, Palindrome

April Challenge 2013

Little Elephant and Music, Barcelona Gameplay Tactics, Kingdom Unity, Maximum Weight Difference, Levy Conjecture

April Cook-Off 2013

Andrew and the Meatballs, Andrew and the Meatballs again

May Challenge 2013

Witua and Math, Tree Counting, Password Cracking Challenge, Juno Puzzle for May, Name Reduction, Your Name is Mine, Field Trip

June Challenge 2013

Dessert Wizard, Predictopus, To challenge or not, Lapindromes

May Cook-off 2013

Subtraction Game 1

June Cook-Off 2013

Attic Crossing

July Challenge 2013

The Probability Of Winning, Chef and Walking on the rectangle , Count K-Primes

July Cook-off 2013

Chopsticks, A Plus B Again!

August Challenge 2013

Little Elephant and Lemonade, Hello Hello, Save The Princess, Splitting Candies

August Cook-Off 2013

Chef and The Right Triangles

September Challenge 2013

CAO Stage-1, CAO Stage-2

October Challenge 2013

Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Edit Distance on Grid

November Challenge 2013

Superpowers of 2, Uncle Johny, Missing some chairs

November Cook-off 2013

Am I a Fibonacci Number

November Lunchtime 2013

Lucy and the Number Game

December Challenge 2013

Funny Marbles, Magic Pairs

January Challenge 2014

Magic Trick, Sereja and Graph, Bon Appetit, Please like me, Chef and Feedback

February Challenge 2014

Longest Common Pattern

March Challenge 2014

Walk

April Challenge 2014

Farmer Feb, Chef and Digits, Shortest Path in Binary Trees

June Challenge 2014

Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Garden Game, Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point

October Challenge 2014

Chef and Ground, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Distinct Characters Subsequence

September Lunchtime 2014

Chef and easy problem

February Challenge 2015

Chef and Chain

March Challenge 2015

Chef and Notebooks

August Challenge 2015

Cooking Machine

March Challenge 2016

Palindromic substrings

May Challenge 2016

Laddu

July Challenge 2016

Andrash and Stipendium

August Challenge 2016

Chef and Chocolate

January Challenge 2017

Cats and Dogs

March Challenge 2017

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

April Challenge 2017

Similar Dishes

July Challenge 2017

Whats in the Name

September Challenge 2017

Little Chef and Sums

June Challenge 2018 Division 2

Naive Chef

September Challenge 2018 Division 2

Magician versus Chef

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi

Total Problems Solved: 193