rohan kumar das

• Username: 3★ez_coder
• Country:  India
• Student/Professional:Student
• Institution:Netaji Subhas University of Technology Dwarka, Delhi, India
• CodeChef Pro Plan: No Active Plan. View Details

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

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No. of Contests Participated: 32

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Starters 219 (Rated)(2025-12-31 22:00:02)

Global Rank:   430

Cheated in:   

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(2025-12-31 22:00:02)

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December Lunchtime 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   128

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

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Learning Paths (0)

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Contests (32)

March Lunchtime 2020 Division 2 (Unrated)

Good Prefix

July Lunchtime 2020 Division 2

Chef and Steps

August Cook-Off 2020 Division 2

Polygon Relationship, Chef and Work, K-Foldable String

August Lunchtime 2020 Division 2

Game on a Strip, Mode of Frequencies, Ratings and Rankings

October Challenge 2020 Division 2

Positive AND, Replace for X, Covid Run, Chef and Easy Queries

Code Ensemble (Rated for Division 2)

Priya and AND

January Lunchtime 2021 Division 3 (Unrated)

Ashishgup and Interviews, Pair Me, Binary Subsequence, Even Differences, Even Sum

February Lunchtime 2021 Division 3

Daanish and Problems, Average Sorting, Palpal Strings, Smallest Possible Whole Number, Coprime Range

March Lunchtime 2021 Division 2

Dinner by Candlelight, Racing, Lunchtime

April Cook-Off 2021 Division 2

OR of ANDs, Chocolate Monger

April Lunchtime 2021 Division 2

Chef in Heaven , Bench Press

June Challenge 2021 Division 2 (Unrated)

Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat

June Cook-Off 2021 Division 2

The Wave

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

CodeChef Starters 10 Division 2 (Rated)

Magical Flips, Maximise the Subsequence Sum, Remove One Element

September Challenge 2021 Division 2 (Unrated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

CodeChef Starters 13 Division 2 (Rated)

Chef in Vaccination Queue, Maximum Light Up, Make that Array!, Magical Doors

September Lunchtime 2021 Division 2

Balanced and Unique Arrays, Alice vs Bob Faceoff, Yet another SOD problem

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

CodeChef Starters 19 Division 2 (Rated)

P Equal To NP, Indivisible Permutation, The Alternating Sum, Distinct Elements

CodeChef Starters 20 Division 2 (Unrated)

Stable Sequence, Weird Values, Brutal-Xors

C.O.D.E.R.S Division 2 (Rated)

The One On The Last Night, The One with All the Candy, The One with Ross Wedding

FizzBuzz Division 2 (Rated)

Magical Planks, Clean The Sequence, Substring Minimum Function, Can_Reach, Kingdom Attack

November Lunchtime 2021 Division 2

Expected Weight, Strange Minimization, Rapid Re-Orderings

December Challenge 2021 Division 2 (Unrated)

Valleys and Hills, Rock Paper Scissors, List of Lists

SnackDown 2021 - Elimination Parallel (Rated for Div 2)

Yet another subarray problem, Remove Element

December Lunchtime 2021 Division 2

Maximum Trio, Optimal Sorting, Romantic Reversals

Starters 141 Division 2 (Rated)

Redundant Array, Amphibian Escape

Starters 142 Division 2 (Rated)

Chef loves Pizza Chef loves halfs, Array Removal, Number Hunt

Starters 209 (Rated)

Binary Love, Tactical Conversion, Small GCD Sort

Starters 210 (Rated)

Delete Sorted Subsequence, Chocolate Eating, First Element Counting

Starters 211 (Rated)

Subarray Maximums, Buying Chairs, No Doubling, Wolf Down

Starters 212 (Rated)

Distinct Fun

Starters 213 (Rated)

Mean Difference (Easy), Chef and String, Separation, No 4 Please

Starters 214 (Unrated)

Zero Permutation Score

Starters 216 (Rated)

LIS and LDS, Best Seats

Monday Munch - DSA Challenge 13

Count of Maximum, Cost of Groceries, Less than 10

Starters 217 (Rated)

Make An AP, Range MEX, Max Adds, Add to make Positive, Add 1 or 3

Starters 219 (Rated)

New Operation, 3 Paths , Ones and Zeroes II, Ones and Zeroes I

Total Problems Solved: 143