Andrew Moskalchuk

• Username: 4★horgh
• Country:  Ukraine
• Student/Professional:Student
• Institution:Taras Shevchenko National University of Kyiv
• CodeChef Pro Plan: No Active Plan. View Details

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

Rating Graph

No. of Contests Participated: 29

Current Ratings Graph Old Ratings Graph

1977 (-38)RatingProvisional
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July Challenge 2015(2015-07-13 15:00:00)

Global Rank:   1554

Cheated in:   

Ratings System Update

(2015-07-13 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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1977 (+161)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2015(2022-12-20 00:00:00)

Global Rank:   1554

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)

November Challenge 2012

Coin Flip, Sridhar Likes Travelling

December Challenge 2012

Granama Recipes, Magic Rankings

December Cook-Off 2012

Packaging Cupcakes, Reversing directions

January Challenge 2013

Little Elephant and Alcohol, The Minimum Number Of Moves, End Of The World, Chef of the Year, Three Different Numbers

February 2013 Challenge

Little Elephant and Cards, Buy1-Get1, Climbing Stairs, Efficient Painting

March Challenge 2013

Tourist Translations, Approximately, Fire Escape Routes

April Challenge 2013

Maximum Weight Difference, Levy Conjecture

July Challenge 2013

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, The Number Of Solutions, Chef and Segments, Splitting Candies

August Cook-Off 2013

Chef and The Right Triangles

September Challenge 2013

Chef and Integers , CAO Stage-1, CAO Stage-2

November Challenge 2013

Superpowers of 2, Uncle Johny, Square Digit Squares, Missing some chairs

November Cook-Off 2014

Brackets, Petersen Graph

December Cook-Off 2014

Matrix Again, Good Joke!

February Challenge 2014

Draughts, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array

March Challenge 2014

Team Split, Binary Tournament, Walk, Little Chef and Numbers, Mike and Stamps, A Story with Strings

April Challenge 2014

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

May Challenge 2014

Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone

June Challenge 2014

Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password

September Challenge 2014

Chef and Left-Right, Fun with Rotation

October Challenge 2014

Remy paints the fence, Chef and Ground, Chef and Square, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

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

December Challenge 2014

Chef Under Pressure, Alok-nath and His Sanskars, Chef and Bracket-Pairs, XOR with Subset, Chef and Apple Trees, Sereja and GCD

February Lunchtime 2014

Sereja and ASum

January Challenge 2015

Queries on the String, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality

March Challenge 2015

Count Substrings, Chef and Notebooks, Devu and his Class, Sign Wave, Matrix

July Challenge 2015

Bread, Na2a and lucky stone, Chef and Cube

Total Problems Solved: 116