Mohd Abdullah

• Username: 4★brainstorm
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Information Technology, Allahabad Uttar Pradesh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 46

Current Ratings Graph Old Ratings Graph

1960 (+18)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2018 DIV 1(2018-03-12 15:00:00)

Global Rank:   346

Cheated in:   

Ratings System Update

(2018-03-12 15:00:00)

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?

1960 (-37)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2018 DIV 1(2022-12-20 00:00:00)

Global Rank:   346

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 (46)

November Challenge 2014

Distinct Characters Subsequence

December Challenge 2014

Chef and Apple Trees

January Challenge 2015

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

January Lunchtime 2015

Piece of cake

February Challenge 2015

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

March Challenge 2015

Chef and Notebooks

April Challenge 2015

Count Sequences, Chef and Interview, Broken Telephone, Inversion sorting, Division of Lands, Chef and Piano Scales

May Challenge 2015

Chef and Prime Divisors

June Challenge 2015

Chef and String

July Challenge 2015

Bread, MasterChef, Na2a and lucky stone, Chef and Cube

August Challenge 2015

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

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Rupsa and Equilateral Triangle

February Cook-Off 2015

Fit Squares in Triangle

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

August Lunchtime 2015

Churu and lost string, Make Palindrome, Minimum Maximum

September Lunchtime 2015

Sum of palindromic numbers

January Long Challenge 2016

Rupsa and the Game, Churu and Balls

February Challenge 2016

Sereja and Two Lines, Chef-Detective

June Challenge 2016

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

August Challenge 2016

Chef and His Garden, Chef and Chocolate, Chef and Round Run

September Challenge 2016

Chef and Friends, Dividing Machine, Chef and Matrix Division, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation

October Challenge 2016

Chef and Keyboard, Chef and Three Dogs

November Challenge 2016

Count Permutations, Friends Meeting, Gift and Chef, Chef and squares, Task for Alexey

January Cook-Off 2016

Chef and Destruction, Chef and Fruits

February Cook-Off 2016

Puppy and Catchers, Puppy and Board, Puppy and Sum

April Cook-Off 2016

Movie Weekend, Odd Divisors

July Cook-Off 2016

Chef and Proportion, Chef and Numbers, Chef and Land

September Cook-Off 2016

Lazy Jem, The Lost Arithmetic Sequences, Counting Strings

July Lunchtime 2016

Drumpf for President!, Lumpy - The Bus Driver

October Lunchtime 2016

The Largest Bouquet

January Challenge 2017

Capital Movement, Cats and Dogs, Digits Cannot Separate, Reservior, Tourists in Mancunia

January Cook-Off 2017

Digit Longest Increasing Subsequences 2

February Cook-Off 2017

Download file

April Challenge 2017

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

June Challenge 2017

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

August Long Challenge 2017

Palindromic Game

September Challenge 2017

Sereja and Commands

April Cook-Off 2017

Bear and Shop Trip, Bear and Candies 123, Bear and AB

September Cook-Off 2017

Statistics Construction, Subsequence Equality

July Lunchtime 2017

Find the Maximum Value, Good Pairs

February Cook-Off 2018

Chef and Cook-Off, Chef and Tuples, Chef and Line

March Challenge 2018 DIV 1

Chef and Easy Problem, Chef and Gcd Queries, Mix the Colors, Minions and Voting

Total Problems Solved: 418