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 » Sergey
user profile

Sergey

Bronze League Bronze League
  • 3★foxermen
  •   Russia
  • Professional
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 32
1776 (-47)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 83 Division 2 (Rated)(2023-03-29 22:30:02)
Global Rank:   1747
Cheated in:   

Ratings System Update

(2023-03-29 22:30:02)
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?
1828 (-66)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 67 Division 2 (Rated)(2022-12-20 00:00:00)
Global Rank:   1332
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 (3)

learn-icon

Learn Python for project building

2%
learn-icon

Build with Django: Web Development for Beginners

17%
learn-icon

Learn C++

10%

Practice Paths (1)

learn-icon

Practice Go

39%

Contests (32)

October Cook-Off 2012

Buying Sweets

April Challenge 2018 Division 2

Cutting Plants, Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers

August Challenge 2018 Division 2

Problem Sort, Sheokand and Number, Spell Bob

September Challenge 2018 Division 2

Magician versus Chef, War of XORs, Chef and Adventures

November Challenge 2018 Division 2

Chef and Ridges, Appy Loves One, Good Median, Chef and Difficult Contests, Chef and Happiness

October Challenge 2018 Division 2

Appy and Balloons , Minimize Digitsum, Chef and Surprise Chessboard, Chef and Serves, Byte to Bit, Chef and Circles

January Challenge 2019 Division 1

Distinct Pairs

February Challenge 2019 Division 2

Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef

March Challenge 2019 Division 2

Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit

May Challenge 2019 Division 2

Reduce to One

June Challenge 2019 Division 2

Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients, Sum and GCD

July Challenge 2019 Division 2

Parity Again, Minimum and Maximum, Chef and Mean

August Challenge 2019 Division 2

Guddu and his Mother, Dilemma, Football, Distribute Apples, Zombie and the Caves

September Challenge 2019 Division 2

Chef and Good Subsequences, Easy Fibonacci, Chef and Interesting Subsequences

October Challenge 2019 Division 2

Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices

November Challenge 2019 Division 2

Physical Exercise, Hard Sequence, From Zero to Infinity, A Simple Game, Weapon Value, Chef and Minimum Colouring

December Challenge 2019 Division 2

Plus Multiply, Easy Subsequence Selection, That Is My Score!

January Challenge 2020 Division 2

Chef and Dynamo, Doraemon, Equality, Chefina and Prefix Suffix Sums, English, Breaking Bricks

April Challenge 2020 Division 1

Strange Number, Squared Subsequences

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements

January Challenge 2021 Division 2

Chef and Ants, Watching CPL, Fair Elections

February Challenge 2021 Division 2

Frog Sort, Team Name, Prime Game, Multiple Games, Maximise Function

May Challenge 2021 Division 2 (Rated)

Valid Paths, Tree House, Xor Equality, Tic Tac Toe, Modular Equation

July Challenge 2021 Division 2 (Unrated)

XxOoRr, Chef vs Bharat, Optimal Denomination

January Long 2022 - I, Division 2 (Unrated)

Sequence Master, Prime in a binary string, Retrieve back the Array, Chef and Riffles

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros, Permutation XOR Sum

February Long 2022 - I, Division 2 (Unrated)

Digit Multiplication By K, Binary Base Basics, Bitwise Blend, Remove Adjacent, N Queens Puzzle Solved !

March Long One 2022, Division 2 (Unrated)

Akash and Function, Subarray XOR, Substring of a Substring, Count the Ones, Exact Marks, MEX on Trees

May Long One 2022 Division 2 (Unrated)

Mystical Numbers, Pushpa , The Magical Stone, Alternating Diameter, The Attack of Queen

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

June Long One 2022 Division 2 (Unrated)

Full Path Eraser, Expected move, Reduce to zero, Divisible by i , Possible GCD, Alternate Additions, Equal Strings

July Long One 2022 Division 2 (Unrated)

Largest Square in the garden, Journey of the Knight, Game of Piles Version 1, Find A, B, C, Slow Solution

September Long 2022 Division 2 (Unrated)

Distinct Numbers, Pokemon Battles, Interesting Subarray, Good Pairs

Starters 58 Division 2 (Unrated)

Break the elements, Equivalent Numbers, Add to Subsequence

Starters 67 Division 2 (Rated)

Maximum Angriness, Expensive Steps , Counting Problem

Starters 71 Division 2 (Rated)

Pet Store, Flip the Prefix, Maximizing LCS

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus, Minimum Beauty

Starters 83 Division 2 (Rated)

Construct String

August Long 2023 Division 2 (Unrated)

Codechef Copy, All New CodeChef, Maximum Deliciousness, I Can Use Both Hands!

Monday Munch - DSA Challenge 14

Reverse the Segment, Chef and Nested Parentheses, Delete All Occurrences of a Key in a Doubly Linked, Complete the resolution, DNA Storage, Largest Y

Weekend Dev Challenge 27: SQL Projects

Challenge 1 - Active Employees of Chef Corp, Driver Performance Dashboard Project, Song Stats Analyzer Project, Challenge 2 - Chef Corp Department Summary, Challenge 3 - Active Project Team Members, Challenge 4 - Chef Corp Project Workforce Summary

Monday Munch - DSA Challenge 16

Special Substring, Matrix Rotations, Unique Subset, Longest Substring Without Repeating Characters, Chef and Consecutive Ones, Birthday Chocolates

Weekend Dev Challenge 29: SQL Projects

Challenge 2 - Top Rated Movies, Challenge 1 - Daily Order Count

Total Problems Solved: 620

1776
(Div 2)
★★★
CodeChef Rating (Highest Rating 1872)
  • Inactive Global Rank
  • Inactive Country Rank

Skill tests

43%

Java Skill test

Attempted on May 2024
97%

C language Skill test

Attempted on June 2024
0%

Data Structures and Algorithms test using C++

Attempted on July 2024
View skill tests

Badges

Contest Contender - Silver Badge

Contest Contender - Silver Badge

Received for participating in 25 Contests

Problem Solver - Gold Badge

Problem Solver - Gold Badge

Received for solving 500 Problems

Recent Activity

Fetching recent activity

Workden, MNR PRIDE, 14, HAL Old Airport Rd, Domlur I Stage, 1st Stage, DOMLUR, Bengaluru, Karnataka 560071 help@codechef.com +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

© 2026 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.