Robert Vazan

• Username: 5★robertvazan
• Country:  Slovakia
• Student/Professional:Professional
• Organisation:Consulting
• 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: 30

Current Ratings Graph Old Ratings Graph

2117 (-33)RatingProvisional
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February Cook-Off 2022 Division 1(2022-02-21 22:30:00)

Global Rank:   211

Cheated in:   

Ratings System Update

(2022-02-21 22:30:00)

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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2117 (+57)RatingProvisional
Rating i Provisional Rating, click to know more

February Cook-Off 2022 Division 1(2022-12-20 00:00:00)

Global Rank:   211

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 (30)

September Challenge 2013

Little Elephant and Exams, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2, Sereja and Snake

September Cook-Off 2013

Strange Matrix, Code

November Challenge 2013

Chef Game, Superpowers of 2, Gangsters of Treeland, Yet Another Cute Girl, Sereja and Vectors, Uncle Johny, Square Digit Squares, Missing some chairs, Black and White Tree

December Cook-off 2013

Chef Goes Through Segments, Chef and Girlfriend

January Challenge 2014

Magic Trick, Counting The Important Pairs, Sereja and Graph, Counting D-sets, ForbiddenSum, Meteor, Byteland Tours, Bon Appetit, Please like me, Chef and Feedback

February Cook-Off 2014

Chef and Remissness, Chef and Kingship, Chef and Reunion

March Cook-Off 2014

ABC-Strings, Dividing Stamps

April Cook-Off 2014

Snape and Ladder, Travelling Chef Problem

May Cook-Off 2014

Divide the Cake, Ups and Downs

June Cook-Off 2014

Counting Flags, Knapsack Problem, Painting

July Cook-Off 2014

Copy-Paste, Sum Queries, Friends

August Cook-Off 2014

Tree Game, Permutation Shuffle, Shooting

October Cook-Off 2014

The Dirty Path, The Army, Walk on the Axis, Mahesh and his lost array

July Challenge 2014

Little Elephant and Painting, Garden Game, Chef and Frogs, Sereja and Equality, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner, Lucky Game, Game of Numbers

August Challenge 2014

Mountain Holidays 2, Sereja and Shuffling, Little Elephant and T-Shirts, Chef and Reversing, The Leaking Robot, Push the Flow!, Earthquake, Cleaning Tables, Chef and Gift

November Challenge 2014

Chef and Segment Game, Chef and Words, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

October Mega Cook-Off 2018 Division 1

Binary Nim 2

December Cook-Off 2018 Division 1

Yalalovichik Numbers

February Cook-Off 2019 Division 1

Max Range Queries, Chef and Secret Password, Chef and Party

March Cook-Off 2019 Division 1

XOR N-bonacci Sequence, Markers and Caps, Music Shopping

April Cook-Off 2019 Division 1

Random Game, Pied Piper vs Hooli

June Cook-Off 2019 Division 1

Ants and Anteaters, Drink Slush

October Mega Cook-Off 2019 Division 1

D-Or

May Cook-Off 2020 Division 1

Chef, Chefina and Their Friendship, Roads in Chefland

July Cook-Off 2020 Division 1

Even-tual Reduction, OR-thodox Distinction

August Cook-Off 2020 Division 1

Red-blue Trees, Polygon Relationship

October Cook-Off 2020 Division 1

Path-etic Sums, The In-XOR-able Task, Yet Another Crossover Episode

September Cook-Off 2020 Division 1

Maximise Subsequence Value, Minimum Insertions

April Cook-Off 2021 Division 1

Tree Distances, OR of ANDs

February Cook-Off 2022 Division 1

Xor Becoming Uncanny, Perfect Permutation, PerMEXuation

Total Problems Solved: 108