Ishan Vaid

• Username: 2★ishan_vaid
• Country:  India
• Student/Professional:Professional
• Organisation:Samsung Research Institute Bangalore
• 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: 37

Current Ratings Graph Old Ratings Graph

1550 (-7)RatingProvisional
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June Challenge 2020 Division 2(2020-06-15 15:00:02)

Global Rank:   6863

Cheated in:   

Ratings System Update

(2020-06-15 15:00:02)

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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1550 (+9)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   6863

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 (37)

June Challenge 2015

Chef and Memory Limit, Steady tables

July Challenge 2015

Na2a and lucky stone, Bread, Chef and Cube

August Challenge 2015

Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix, Bank robbery

October Challenge 2015

Who dares to be a millionaire, Spheres, Count Subarrays, Time measure

November Challenge 2015

Eugene and function

December Challenge 2015

Chef and the stones, Oracle Devu and Longest Common Subsequence

June Lunchtime 2015

Chef and Two Strings

August Lunchtime 2015

Minimum Maximum

January Long Challenge 2016

Churu and Balls, Chef and Time Machine, Devu and Perfume

March Challenge 2016

maximize the sum, Palindromic substrings

April Challenge 2016

Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring

May Challenge 2016

Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu

June Challenge 2016

Devu and an Array, Chef and Coins Game, Chef And Binary Operation

July Challenge 2016

Andrash and Stipendium, Chef and Tetris

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation

October Challenge 2016

Chef and Keyboard

October Challenge 2017

A Balanced Contest

February Challenge 2018

Chef And The Patents, Chef And His Characters, Permutation and Palindrome

September Challenge 2018 Division 2

Magician versus Chef, Chef and Adventures

December Challenge 2018 Division 2

Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem

January Challenge 2019 Division 2

Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes

February Challenge 2019 Division 2

Chef and Magical Jars, Deputy Chef, Appy and Contest, Chef and Secret Ingredients

March Challenge 2019 Division 2

Chef and Number Game

April Challenge 2019 Division 2

Playing with Numbers, Friend or Girlfriend, Maximum Remaining, Subtree Removal, Fencing

May Challenge 2019 Division 2

Reduce to One, Matches

August Challenge 2019 Division 2

Dilemma, Football, Distribute Apples, Zombie and the Caves

September Challenge 2019 Division 2

Easy Fibonacci, Chef and Interesting Subsequences

October Challenge 2019 Division 2

Array Modification, Operations on a Matrix, Phone Prices

November Challenge 2019 Division 2

Hard Sequence, Weapon Value

December Challenge 2019 Division 2

Plus Multiply, That Is My Score!

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control

Total Problems Solved: 122