Chandan kumar

• Username: 2★buddhu001
• Country:  India
• Student/Professional:Student
• Institution:IES College of Technology, Bhopal Madhya 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: 21

Current Ratings Graph Old Ratings Graph

1510 (-13)RatingProvisional
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February Lunchtime 2022 Division 2(2022-03-01 23:00:02)

Global Rank:   2995

Cheated in:   

Ratings System Update

(2022-03-01 23:00:02)

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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1510 (-121)RatingProvisional
Rating i Provisional Rating, click to know more

February Lunchtime 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   2995

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 (21)

July Challenge 2020 Division 2

Chef and Card Game

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP

September Challenge 2020 Division 2

A Problem on Sticks

July Cook-Off 2020 Division 2

Even-tual Reduction

July Lunchtime 2020 Division 2

Chef and Steps

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian

Code Ensemble (Rated for Division 2)

Priya and AND

February Lunchtime 2021 Division 3

Daanish and Problems, Smallest Possible Whole Number

CodeChef Div 3 Rated Contest 2021 Division 3

Body Mass Index

February CodeChef Starters 2021 Division 3 (Rated)

Chef and Coupon, College Life 2

March Challenge 2021 Division 3

Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait

April Challenge 2021 Division 3

Chef and Dice, Valid Pair, World Record, Strong Language

April Cook-Off 2021 Division 3

Passing Marks, Chocolate Monger

SPYBITS IIT BHU Division 3 (Rated)

B - Valentine Couples, A - Save Water Save Life

May CodeChef Starters 2021 Division 3 (Rated)

Correct Sentence, Lazy Chef, Cheating Time, Plagiarism

May Challenge 2021 Division 3 (Rated)

Xor Equality, Tic Tac Toe, Golf, Solubility

August Challenge 2021 Division 2 (Unrated)

Problem Difficulties, Olympics Ranking

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

November Challenge 2021 Division 2 (Unrated)

Maximise the bridges, Equal Coins, Weird Palindrome Making, Hill Sequence

December Challenge 2021 Division 2 (Unrated)

Valleys and Hills, List of Lists

January Long 2022 - I, Division 2 (Unrated)

Prime in a binary string

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility

February Long 2022 - I, Division 2 (Unrated)

N Queens Puzzle Solved !

CodeChef Starters 25 Division 2 (Rated)

Building Towers, Points and Lines, K Distinct Array, Equal MEX

February Cook-Off 2022 Division 2

Perfect Permutation, Prefix Permutation

February Lunchtime 2022 Division 2

Four Equidistant Points on a Grid, Parallel Processing

June Long Two 2022 Division 2 (Unrated)

Reversal Sorting

Total Problems Solved: 102