Himanshu Aggarwal

• Username: 2★rackstar
• Country:  India
• Student/Professional:Student
• Institution:Jaypee Institute of Information Technology Noida, Uttar Pradesh, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 41

Current Ratings Graph Old Ratings Graph

1481 (-22)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2015(2015-10-12 15:00:00)

Global Rank:   5644

Cheated in:   

Ratings System Update

(2015-10-12 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?

1481 (+57)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2015(2022-12-20 00:00:00)

Global Rank:   5644

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 (41)

January Challenge 2014

Chef and Feedback, Please like me

March Cook-Off 2014

Dividing Stamps

April Cook-Off 2014

Snape and Ladder

May Cook-Off 2014

Divide the Cake, Ups and Downs

July Cook-Off 2014

Copy-Paste, Sum Queries

September Cook-Off 2014, ACM-ICPC Warm up

Subarray GCD

October Cook-Off 2014

Walk on the Axis

November Cook-Off 2014

Brackets

February Challenge 2014

Longest Common Pattern

April Challenge 2014

Farmer Feb, Shortest Path in Binary Trees

May Challenge 2014

Stone, Chef-jumping, Compilers and Parsers

June Challenge 2014

Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

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

August Challenge 2014

The Leaking Robot, Chef and Gift

September Challenge 2014

Factorisation, Chef and Left-Right, Fun with Rotation

October Challenge 2014

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

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

December Challenge 2014

Chef and Apple Trees

June Lunchtime 2014

The Smallest Pair

September Lunchtime 2014

Chef and easy problem

October Lunchtime 2014

Tanu and Head-bob

January Challenge 2015

Gcd Queries, Sereja and Votes, Chef and Stones, Sereja and Number Division 2

January Lunchtime 2015

Piece of cake

February Challenge 2015

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

March Challenge 2015

Chef and Notebooks

April Challenge 2015

Chef and Interview, Broken Telephone, Chef and Piano Scales

May Challenge 2015

Chef and new recipe

June Challenge 2015

Chef and Memory Limit

September Challenge 2015

Count Steps in Matrix

February Cook-Off 2015

Fit Squares in Triangle

Total Problems Solved: 136