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
Upgrade to Pro
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 » Safronov Aleksei
user profile

Safronov Aleksei

  • 4★yarrr
  •   Russia
  • Professional
  • AIM Tech
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 50
1851 (-37)RatingProvisional
Rating i Provisional Rating, click to know more
January Challenge 2021 Division 2(2021-01-11 15:00:02)
Global Rank:   1951
Cheated in:   

Ratings System Update

(2021-01-11 15:00:02)
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?
1851 (-9)RatingProvisional
Rating i Provisional Rating, click to know more
January Challenge 2021 Division 2(2022-12-20 00:00:00)
Global Rank:   1951
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 (50)

The January 2011 Cook-Off

Holes in the text

August Cook-off 2011

Vote for the Noodle Soup, Open the Dragon Scroll

April Cook-Off 2012

Top Batsmen, Resistance

May Challenge 2012

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

November Challenge 2012

A Wonderful Chocolate, Delicious Dishes, Coin Flip, Sridhar Likes Travelling

March Challenge 2013

Tourist Translations, Approximately, Fire Escape Routes

May Challenge 2013

Matchsticks, Witua and Math, Tree Counting, Queries on tree again!, Password Cracking Challenge, Juno Puzzle for May, Name Reduction, Your Name is Mine, Field Trip

June Challenge 2013

Dessert Wizard, Lapindromes

May Cook-off 2013

Subtraction Game 1, Subtraction Game 2, Sequence Transmission

June Cook-Off 2013

Attic Crossing, Lyra and the Alethiometer, Tywins Tactics, Party Planning

July Challenge 2013

Across the River, Mountain Holidays, Galactik Football, The Probability Of Winning, Furik and Rubik and Sub Array, Chef and Walking on the rectangle , Count K-Primes, Sereja and Sorting, Circle of death

August Challenge 2013

Little Elephant and Lemonade, Music & Lyrics, Hello Hello, Save The Princess, The Number Of Solutions, Chef and Segments, Sereja and Ballons, Deleting numbers, Splitting Candies

September Challenge 2013

Little Elephant and Exams, Merciless Chef, Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2

September Cook-Off 2013

Strange Matrix, Game, Code, Big Number

October Challenge 2013

Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, CAO Stage-3, Yet Another Nice Girl, Kamehameha

December Challenge 2013

Cube Cakes, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries

January Challenge 2014

Magic Trick, Sereja and Graph, ForbiddenSum, Meteor, Bon Appetit, Please like me, Chef and Feedback

January Cook-off 2014

Chef and the Cake I

June Cook-Off 2014

Counting Flags, Knapsack Problem, Painting

October Cook-Off 2014

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

February Challenge 2014

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

March Challenge 2014

Team Split, Walk, Little Chef and Numbers, Mike and Stamps, A Story with Strings, Chef and Graph Queries

April Challenge 2014

Farmer Feb

June Challenge 2014

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

August Challenge 2014

Chef and Gift

September Challenge 2014

Chef and Rainbow Array - 2, Chef and sequence, Fun with Rotation

October Challenge 2014

Remy paints the fence, Sereja and two strings, Chef and Ground, Chef and Square, Stringology is Magic, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

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

January Challenge 2015

Chef and A Large Permutation, Sereja and LCM, 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

May Challenge 2015

Chef and Prime Divisors, Set Difference , Chef and new recipe, Chef and Cake

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Cyclic shifts in permutation, Rupsa and Equilateral Triangle, Jump mission

November Challenge 2015

Eugene and function, Chef and cakes

December Cook-Off 2015

Chef and Subarrays, Chef and Queries

January Long Challenge 2016

Churu and Balls, Devu and Perfume

February Challenge 2016

Sereja and Two Lines, Chef and Strange Operations, Devu and a light discussion, Chef-Detective

March Challenge 2016

Palindromic substrings

May Challenge 2016

Sereja and GCD 2, Easy Queries, Chef and math, Chef and Balls, Forest Gathering, Chef and Amazingness of Numbers, Optimal Shopping II, Chef and Big Soccer, Laddu, Roads in Stars

June Challenge 2016

Chef and Coins Game, Chef and cities, Devu and an Array

October Challenge 2016

Chef and Keyboard, Chef and Three Dogs

June Challenge 2017

Chef and Prime Queries, A Good Set, Chef and the Feast, Triplets, Pairwise union of sets

December Challenge 2017

Chef And his Cake

December Challenge 2018 Division 2

Colorblind Feast, Max and Electrical Panel, Chef and Interactive XOR, Chef and Meatballs, Chef and Interactive Contests, Chef and An Ideal Problem

October Challenge 2018 Division 2

Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard, (Challenge) Chef and Takonemo, Chef and Serves, Byte to Bit, Chef and Circles

May Challenge 2020 Division 1

Chef and Bitwise Product

June Challenge 2020 Division 1

The Tom and Jerry Game!, Operations on a Tuple

October Challenge 2020 Division 1

Positive AND, Replace for X

January Challenge 2021 Division 2

Watching CPL, Fair Elections

December Challenge 2020 Division 2

Hail XOR, Square Root of LCA Convolution, String Operations, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

Total Problems Solved: 216

1851
(Div 2)
★★★★
CodeChef Rating (Highest Rating 2193)
  • Inactive Global Rank
  • Inactive Country Rank

Badges

Contest Contender - Gold Badge

Contest Contender - Gold Badge

Received for participating in 50 Contests

Problem Solver - Bronze Badge

Problem Solver - Bronze Badge

Received for solving 50 Problems

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
SQL for Data Analysis
Frontend Developer
Java Backend Developer
Data Analysis using Python
Python Backend Developer
C++ Developer

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

© 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.