CodeChef Logo CodeChef Logo
Courses

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Programming and DSA

Explore courses

Catalogue

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Explore courses
Practice Compete Compiler

Courses

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Programming and DSA

Explore courses

Catalogue

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Explore courses
Practice Compete Compiler
Home » Alexander Ostanin
user profile

Alexander Ostanin

  • 7★kostroma
  •   Russia
  • Other
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 28
2639 (+10)RatingProvisional
Rating i Provisional Rating, click to know more
SnackDown 2021 - Online Elimination Round (Rated for all)(2021-12-13 16:30:00)
Global Rank:   49
Cheated in:   

Ratings System Update

(2021-12-13 16:30:00)
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?
2639 (+28)RatingProvisional
Rating i Provisional Rating, click to know more
SnackDown 2021 - Online Elimination Round (Rated for all)(2022-12-20 00:00:00)
Global Rank:   49
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)

None

Practice Paths (0)

None

Contests (28)

February Cook - Off Challenge

Breaking Into Atoms, Three Way Communications

March Cook-off Challenge

Money Transformation, Snake Snaky

May Cook-off 2011

Popular Rice Recipe, Distribute idlis Equally

January Cook-Off

Collision in Space

February 2012 Cook-off

Bears and Bees, Daily Train, Equation Solver

March Cook-Off 2012

Ciel Numbers II

May Challenge 2012

Little Elephant and Median, Jewels and Stones, Lucky lucky number, Divisible Pairs, Remember the recipe, A Home for Chef

June Challenge 2012

Closest Points, Polynomial Partition Function, Little Elephant and Product, Little Elephant and Candies, Magic Hull, Doom Bakes Cakes, Fly-overs, Arranging Cup-cakes

June Cook-Off 2012

Closing the Tweets, Connecting Soldiers

September Cook-Off 2012

Prime Permutations, Recipe Reconstruction, Carvans, Coal Scam

November Cook-Off 2012

Little Elephant and Permutations, Little Elephant and Divisors

January Challenge 2013

Little Elephant and Alcohol, A New Door, Dividing Products, Hotel Balifornia, The Minimum Number Of Moves, End Of The World, A Fence for Byteland, Chef of the Year, Three Different Numbers

December Cook-off 2013

Chef Goes Through Segments, Chef and Girlfriend, Chef and Combinatorics

July Challenge 2014

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

June Challenge 2015

Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Another Fibonacci, Anticommutative implication, Chef and String

July Challenge 2015

Addition and Multiplication, Maximum Difference Walk, Sereja and Game 2, Bread, A game on a graph, MasterChef, Na2a and lucky stone, Chef and Cube, Rohith and Circles, Easy exam

August Challenge 2015

Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia

September Challenge 2015

Filling the maze, 3D Queries, Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix, Terrible vectors, Bank robbery, Lighthouses, Cracking the Code

July Cook-Off 2015

Cops and the Thief Devu, Maximize Disjoint Pair Sum, Path containing K Nodes, Adding Special Sum

September Mega Cook-Off 2015

Reign 2, Forgotten Language, Super Numbers, Stacks

November Cook-Off 2015

Sereja and Line, Sereja and Array and Subtracting, Sereja and Pairs, Sereja and Tree 2

January Long Challenge 2016

Sereja and Salesman, Chef and Inflation, Rupsa and the Game, Churu and Balls, Cyclist Race, Chef and Time Machine, Devu and Perfume

September Cook-Off 2016

Lazy Jem, The Lost Arithmetic Sequences, Counting Strings, Find The Point

September Challenge 2017

Sereja and Commands, Sereja and Functions (Challenge), Chef and Pick Digit, Minimum Good Permutation, Sum of Cubes, Weasel does Xor on Tree, Weasel finds Staircase, Fill The Matrix, Little Chef and Sums

November Cook-Off 2017

Hasan and boring classes, Adjacent leaves, Skiing, Online Chess, Random Pair

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

SnackDown 2021 - Online Pre-Elimination

Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers, Mega mu - 1, Guess the row

SnackDown 2021 - Online Elimination Round (Rated for all)

Random Convex Hull, Graduate Work Matters, Sorting Segments

Total Problems Solved: 138

2639
(Div 1)
★★★★★★★
CodeChef Rating (Highest Rating 2639)
  • Inactive Global Rank
  • Inactive Country Rank

Badges

Contest Contender - Silver Badge

Contest Contender - Silver Badge

Received for participating in 25 Contests

Problem Solver - Bronze Badge

Problem Solver - Bronze Badge

Received for solving 50 Problems

Daily Streak - Bronze Badge

Daily Streak - Bronze Badge

Received for maintaining a streak of 5 days

Recent Activity

Fetching recent activity

Workden, MNR PRIDE, 14, HAL Old Airport Rd, Domlur I Stage, 1st Stage, DOMLUR, Bengaluru, Karnataka 560071 [email protected] +91 95911 47880
Find us online

ROADMAPS

Learn Python
Learn Java
Learn C
Learn C++
Data structures and Algorithms
Competitive Programming
More Roadmaps

CAREER PATHS

React JS Developer
Full stack Developer
SQL for Data Analysis
Frontend Developer
Java Backend Developer
Data Analysis using Python
Python Backend Developer
C++ Developer
Machine Learning using Python

COMPILERS

HTML online compiler
C++ online compiler
C online compiler
Java online compiler
Python online compiler
SQL online compiler
JavaScript online compiler
React online compiler
More compilers

COMPANY

About us
For colleges
Coding Contests
Blogs
Contact us
Privacy Policy
Frequently Asked Questions

© 2025 CodeChef Inc. All rights reserved.

We use cookies to improve your experience and for analytical purposes. Read our Privacy Policy and Terms to know more. You consent to our cookies if you continue to use our website.