osama siddiqui

• Username: 3★osid
• 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 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 23

Current Ratings Graph Old Ratings Graph

1715 (-26)RatingProvisional
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January Lunchtime 2019 Division 2(2019-01-26 22:30:02)

Global Rank:   1519

Cheated in:   

Ratings System Update

(2019-01-26 22:30:02)

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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1715 (+98)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   1519

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 (23)

March Cook-Off 2014

Dividing Stamps

April Cook-Off 2014

Snape and Ladder

May Cook-Off 2014

Divide the Cake, Ups and Downs

June Cook-Off 2014

Counting Flags

July Cook-Off 2014

Copy-Paste, Sum Queries

March Challenge 2014

Walk, Little Chef and Numbers

April Challenge 2014

Farmer Feb, Shortest Path in Binary Trees

May Challenge 2014

Chef-jumping

June Challenge 2014

Guessing Game, Chef and Subarray

July Challenge 2014

Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point

August Challenge 2014

The Leaking Robot, Cleaning Tables, Chef and Gift

September Challenge 2014

Factorisation, Chef and Rainbow Array - 2, Chef and Left-Right, Fun with Rotation

October Challenge 2014

Remy paints the fence, DevuLand, Dinosaurs and Laddus, Chef and Ground, Magical Girl and Colored Liquid Potions

May Lunchtime 2014

Approximately II

June Lunchtime 2014

The Smallest Pair

January Challenge 2015

Sereja and Number Division 2, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

January Cook-Off 2015

Suraj goes shopping, Tojo hates probabilities

February Challenge 2015

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

May Challenge 2015

Set Difference , Chef and new recipe

August Challenge 2015

Gravity Guy, Cooking Machine, Aditi and Magic Trick

September Mega Cook-Off 2015

Forgotten Language, Stacks

January Lunchtime 2019 Division 2

The Nights Watch

Total Problems Solved: 70