vivek chahar

• Username: 4★vivekchahar28
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology, Kurukshetra Thanesar, Haryana, 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: 27

Current Ratings Graph Old Ratings Graph

1993 (-4)RatingProvisional
Rating i Provisional Rating, click to know more

May Cook-Off 2015(2015-05-25 00:00:00)

Global Rank:   335

Cheated in:   

Ratings System Update

(2015-05-25 00:00:00)

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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1993 (+77)RatingProvisional
Rating i Provisional Rating, click to know more

May Cook-Off 2015(2022-12-20 00:00:00)

Global Rank:   335

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 (27)

August Challenge 2013

Hello Hello, Splitting Candies, Little Elephant and Lemonade

September Challenge 2013

Chef and Integers , CAO Stage-1, CAO Stage-2

October Challenge 2013

Helping Lira, Maxim and Dividers

November Challenge 2013

Sereja and Vectors, Missing some chairs, Square Digit Squares, Uncle Johny, Superpowers of 2

December Challenge 2013

Chef and Codes, Magic Pairs, Rectangular Queries

December Cook-off 2013

Chef and Girlfriend

January Challenge 2014

Please like me, Chef and Feedback, Bon Appetit, Sereja and Graph

March Cook-Off 2014

Dividing Stamps

April Cook-Off 2014

Snape and Ladder

July Cook-Off 2014

Copy-Paste, Sum Queries

August Cook-Off 2014

Permutation Shuffle

February Challenge 2014

Colored Array, Make It Zero 2, Little Elephant and Subarrays, Longest Common Pattern, Make Him Happy

March Challenge 2014

Sereja and Sorting 2, Team Split, Binary Tournament, Walk, Little Chef and Numbers

April Challenge 2014

Shortest Path in Binary Trees, Divide the Tangerine, Chef and Digits, Counting Matrices, Farmer Feb, Sereja and Permutation

May Challenge 2014

Little Elephant and Balloons, Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, The Malaysian Flight Search, Stone

July Challenge 2014

Count Substrings, Dish Owner, Reach The Point, Chef and Rectangle Genome, Chef and Frogs, Garden Game

August Challenge 2014

Chef and Reversing, The Leaking Robot, Cleaning Tables, Chef and Gift

September Challenge 2014

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

October Challenge 2014

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

May Lunchtime 2014

Approximately II

June Lunchtime 2014

The Smallest Pair

August Lunchtime 2014

Harrenhal

September Lunchtime 2014

Chef and easy problem, Chef and easy problem 2

January Challenge 2015

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

May Cook-Off 2015

Devu and friendship testing, Devu and decorating birthday cake

Total Problems Solved: 209