Hasan Alirajpurwala

• Username: 4★hasan_356
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology, Durgapur West Bengal, India
• 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: 32

Current Ratings Graph Old Ratings Graph

1948 (+57)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2017(2017-10-16 15:00:00)

Global Rank:   109

Cheated in:   

Ratings System Update

(2017-10-16 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?

1948 (-179)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   109

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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Practice Paths (0)

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Contests (32)

April Challenge 2016

Chef And Coloring, Chef and Ballons

May Challenge 2016

Laddu

June Challenge 2016

Chef And The Hiring Event, Chef and Coins Game, Devu and an Array

July Challenge 2016

Andrash and Stipendium

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Chef and digits of a number, Faded Palindromes, Chef and calculation

October Challenge 2016

Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs

November Challenge 2016

Count Permutations, Task for Alexey

April Cook-Off 2016

Movie Weekend

July Cook-Off 2016

Chef and Proportion, Chef and Numbers

August Cook-Off 2016

Tweedle-Dee and Tweedle-Dum

September Cook-Off 2016

Lazy Jem

October Cook-Off 2016

Watson asks Does Permutation Exist, ChefWatson uses Social Network

April Lunchtime 2016

Coins And Triangle

June Lunchtime 2016

Collisions

July Lunchtime 2016

Drumpf for President!

August Lunchtime 2016

Studying Alphabet

September Lunchtime 2016

Chef and Inequality

December Lunchtime 2016

Superheroes and villains

January Challenge 2017

Cats and Dogs, Reservior

February Challenge 2017

Gerrymander, Most Frequent Element, Chef and Triangles, Eugene and big number, Chef and His Apartment Dues

March Challenge 2017

Cooking Schedule, Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

January Cook-Off 2017

Digit Longest Increasing Subsequences 2

February Cook-Off 2017

Download file

April Challenge 2017

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

June Challenge 2017

Pairwise union of sets, Saboteur (Challenge), Triplets, Xenny and Coin Rankings, Chef and the Feast, A Good Set, Chef and Prime Queries

October Challenge 2017

Chef and Magic Arrays, Chef and a great voluntary Program, Chef and Cycled Cycles, Shooting on the array, Max Mex, Counter Test For CHEFSUM, A Balanced Contest, (Challenge) Connecting computers

March Cook-Off 2017

Safe Robot

March Lunchtime 2017

Bear and Ladder, Bear and Species

Alkhwarizm 2017 (Rated)

Logan and his XOR debacle

Total Problems Solved: 179