Haider Ali

• Username: 5★scoobybutter
• Country:  India
• Student/Professional:Professional
• Organisation:InMobi Technologies Pvt Ltd
• 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: 25

Current Ratings Graph Old Ratings Graph

2076 (+43)RatingProvisional
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January Challenge 2017(2017-01-18 15:00:00)

Global Rank:   83

Cheated in:   

Ratings System Update

(2017-01-18 15:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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2076 (-37)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   83

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 (25)

August Challenge 2015

Cooking Machine, Gravity Guy, Aditi and Magic Trick

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix, Bank robbery, Cracking the Code

October Challenge 2015

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

November Challenge 2015

Eugene and function, Chef and cakes, Simple Sum

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

September Mega Cook-Off 2015

Forgotten Language, Stacks

October Cook-Off 2015

Word Stem, Almost Sorted Permutation

November Cook-Off 2015

Sereja and Line, Sereja and Array and Subtracting

August Lunchtime 2015

Minimum Maximum

September Lunchtime 2015

Sum of palindromic numbers

January Long Challenge 2016

Chef and Inflation, Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume

February Challenge 2016

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

March Challenge 2016

Palindromic substrings, maximize the sum, Chef And Special Dishes

June Challenge 2016

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

July Challenge 2016

Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity

November Challenge 2016

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

January Cook-Off 2016

Chef and Fruits

March Cook-Off 2016

Alternating subarray prefix, Digital clock, Dual Nim

June Cook-Off 2016

Sticks, Right Triangle

September Cook-Off 2016

Lazy Jem, The Lost Arithmetic Sequences

November Cook-Off 2016

Sebi and the highway

July Lunchtime 2016

Drumpf for President!, Lumpy - The Bus Driver

August Lunchtime 2016

Studying Alphabet, Lock-Free Stack

October Lunchtime 2016

The Largest Bouquet

January Challenge 2017

Capital Movement, Cats and Dogs, Chef and Circle, Fantastic Four, Digits Cannot Separate, Reservior, Tourists in Mancunia

Total Problems Solved: 98