Alexander

• Username: 5★elshiko
• Country:  Russia
• Student/Professional:Student
• Institution:National Nuclear Research University "MEPHI"
• 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: 22

Current Ratings Graph Old Ratings Graph

2017 (-45)RatingProvisional
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May Challenge 2017(2017-05-18 15:00:00)

Global Rank:   3266

Cheated in:   

Ratings System Update

(2017-05-18 15:00:00)

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2017 (+227)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2017(2022-12-20 00:00:00)

Global Rank:   3266

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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Contests (22)

July Cook-Off 2014

Sum Queries, Friends, Copy-Paste

July Challenge 2014

Garden Game, Chef and Frogs, Count Substrings, Reach The Point, Dish Owner

August Challenge 2014

Chef and Reversing, The Leaking Robot, Chef and Gift

September Challenge 2014

Chef and Rainbow Array - 2, Fun with Rotation, Chef and Left-Right

November Challenge 2014

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

December Challenge 2014

Chef and Bracket-Pairs, Chef and Apple Trees, XOR with Subset

January Challenge 2015

Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

February Challenge 2015

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

March Challenge 2015

Chef and Notebooks

April Challenge 2015

Count Sequences, Chef and Interview, Broken Telephone, Chef and Piano Scales

May Challenge 2015

Chef and Cake, Chef and new recipe, Set Difference , Devu and binary String, Chef and Prime Divisors, Devu and his three Hands

June Challenge 2015

Steady tables, Chef and Memory Limit, Chef and Polygons

December Challenge 2015

Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters

March Cook-Off 2015

How to Write a Message, How to Repaint a Fence, How to Minimize a String

December Cook-Off 2015

Chef and Subarrays, Chef and Queries

March Challenge 2016

Palindromic substrings, maximize the sum, Chef And Special Dishes

June Challenge 2016

Devu and an Array, Chef and cities, Chef and Coins Game, Chef and Array and K, Chef and Rectangle Array, Chef And The Hiring Event, Chef And Binary Operation

August Challenge 2016

Chef and His Garden, Chef and Circle Run, Chef and Chocolate, Chef and Round Run, Funny gnomes, Maximum Grid

October Challenge 2016

Fenwick Iterations, Chef and Three Dogs, Big Queries, Chef and Keyboard

May Cook-Off 2016

Phantasialand, Easy Numbers

April Challenge 2017

Chef and Divisor Tree, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

May Challenge 2017

Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

Total Problems Solved: 89